Difference between revisions of "POC Conf. Call 5-03-11"

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'''POC meeting, Webex Conference Call; Date: Thursday April 28th, 2011 10am (PDT)'''
+
'''POC meeting, Webex Conference Call; Date: Tuesday May 3rd, 2011 10am (PDT)'''
  
 
In attendance:  
 
In attendance:  
  
−
POC members:
+
POC members: Laurel Cooper (OSU), Ramona Walls (NYBG), Justin Preece (OSU), Pankaj Jaiswal (OSU), Dennis Stevenson (NYBG), Barry Smith (University at Buffalo, NY), Marie Alejandra Gandolfo (Cornell University)
  
−
Absent:
+
Absent: Chris Mungall (Lawrence Berkeley National Lab), Justin Elsner (OSU)?
  
−
Collaborators:  
+
Collaborators: none
  
  
−
Acceptance of the minutes from the [[POC_Conf._Call_4-28-11]]?
+
Acceptance of the minutes from the [[POC_Conf._Call_4-28-11]]? ''There were no changes, additions or deletions.''
  
 
=Items arising from previous meetings:=
 
=Items arising from previous meetings:=
 +
 +
==Review of [https://sourceforge.net/tracker/?func=detail&aid=3234956&group_id=76834&atid=835555 apical cell] (PO:0030007) and its descendents==
 +
 +
''Postponed until [[POC_Conf._Call_5-06-11]]''
 +
 +
===New terms and definitions for apical cells===
 +
 +
''Postponed until [[POC_Conf._Call_5-06-11]]''
  
 
=New terms for Physcomitrella and related taxa (continued)=
 
=New terms for Physcomitrella and related taxa (continued)=
−
==Conductive cells and tissues==
+
==Plant Tissues==
−
THIS PART IS STILL UNDER CONSTRUCTTION
+
 
 +
===[https://sourceforge.net/tracker/?func=detail&aid=3293886&group_id=76834&atid=835555 paraphyllium (PO:0030069)]===
  
−
===conductive cells for bryophytes===
+
Tiny filaments, scales or leaf-like structures scattered on the stems of some leafy bryophytes. Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition (MO definition)
−
 
−
====axial cell====
 
  
−
First we need to address the definition of axial cell, as it was written with angiosperms in mind.
+
Crum defines them as "Small green outgrowths formed between the leaves on stems and branches of some pleurocarps (mosses that produce archegonia and sporophytes laterally, rather than on the tips of their axes) and a very few leafy liverworts."
  
−
'''axial cell (PO:0000081):''' A vascular cell derived from the fusiform cambial initial and oriented with its longest diameter parallel with the main axis of stem or root. [source: ISBN:0471245208]
+
Schofield describes paraphyllia as outgrowths of the epidermis, but he also describes leaves that way.
  
−
Comment: These cells make up the axial system, also known as vertical or longitudinal system.
+
Moss Ontology has paraphyllium listed as a plant organ, but they do not arise from the SAM as phyllomes do.
  
−
We cannot define axial cell as a vascular cell, because the term vascular cell doesn't exist, and it includes non-conductive cells such as fibers. Also, not all cells that are currently under the category axial cell are derived from a fusiform initial.  
+
'''Proposed definition:''' A portion of epidermal tissue that is a small outgrowth from the epidermis between the leaves of a gametophore axis.
  
−
Is axial cell the best name for this term? The phrase "axial system" is already used to describe the vascular tissue in wood (in contrast to the radial system), so "axial cells" might be automatically associated with that system.
+
Comment: Paraphyllia are much smaller than leaves and may be filamentous, scale-like, or leaf-like. Found in pleurocarpous mosses and a few leafy liverworts.
  
−
Should this category include only conducting cells, or other types (like fibers and stereids). What about collenchyma cells? 
+
is_a epidermis, part_of gametophore axis
  
−
At the bryophyte term meeting on 4-25-2011 (RW and MAG present), we decided that axial was not the correct term to use to describe all of the elongated cells found in a plant. They are different cell types and have different origins, so they should not all be grouped together.
+
[[File:Paraphyllia.jpg]] The paraphyllia are the small, dark structures between the leaves.
  
  
−
'''Existing children of axial cell:'''
+
''Remove the word "small" from the definition. Don't need it.''
  
−
'''sieve tube member (PO:0000289, alt: PO:0000286):'''
+
''Accepted''
  
−
'''phloem fiber (PO:0004519):'''
+
===[https://sourceforge.net/tracker/?func=detail&aid=3293891&group_id=76834&atid=835555 paraphysis (PO:0030070)]===
  
−
'''xylem element (PO:0000273):'''
+
Moss Ontology definition: Sterile, septate, usually uniseriate hairs intermixed with sex organs. Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition
  
−
'''tracheary element (PO:0000273):'''
+
From Parihar: sterile, slender filaments accompanying reproductive organs.
  
−
'''tracheid (PO:0000301):'''
+
From Schofeld: filamentous sterile structures intermixed with the sex organs of most mosses
  
−
'''vessel member (PO:0002003):'''
+
These are a kind of trichome
  
−
'''xylem fiber (PO:0000274):'''
 
  
−
'''fiber tracheid (PO:0000355):'''
+
'''Proposed def.:''' A slender, usually uniseriate multicellular trichome that grows intermixed with the gametangia.
  
−
'''libriform fiber (PO:0004520):'''
+
Comment: Found in bryophytes and pteridophytes, especially in mosses.
  
−
'''septate fiber (PO:0004521):'''
+
adjacent_to gametangium, plural: paraphyses; particpates_in gametophytic phase
  
−
=====New terms for bryophytes:=====
+
'''Should we add the adjacent_to relation?''' ''No. Adjacent to means they are in permanent contact, which is not appropriate here.''
  
−
'''hyrdoid (PO:0025032):''': An elongate, water conducting cell that is dead at maturity, with tapered ends that are thin and partially hydrolyzed, that lacks specialized wall thickenings or lignin. [source: ISBN:0962073342 (Crum), ISBN:9780717810073]
 
  
−
Comment: Occurs in the gametophytic phase of a plant life cycle.
+
''New proposed def: A slender multicellular trichome that grows between the gametangia.''
  
−
'''Proposed def.:''' A plant cell that is dead at maturity,lacks specialized wall thickenings or lignin, and has tapered ends that are thin and partially hydrolyzed.
+
''Comment: Usually multiseriate. Found in bryophytes and pteridophytes, especially in mosses.''
  
−
Comment: Hydroids are water conducting cells found only in bryophytes in the gametophytic phase and in the seta in the sporophytic phase. [source: ISBN:0962073342 (Crum), ISBN:376821110 (Hebant)]
 
  
−
part_of hydrome
 
  
 +
''Accepted''
  
−
'''leptoid (PO:0025033):''' A food conducting cell associated with hydroids that resembles the sieve elements of some seedless vascular plants. [source: ISBN:962073342, ISBN:9780717810073]  
+
===[https://sourceforge.net/tracker/?func=detail&aid=3293292&group_id=76834&atid=835555 axillary hair (PO:0030060)]===
  
−
Comment: Occurs in the gametophytic phase of a plant life cycle.
+
Moss Ontology definition: A small filament in an axil consisting of one long terminal cell atop a basal stalk (also called club-hair). Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition
  
−
'''Proposed def.:''' A plant cell that resembles in structure the sieve elements of some seedless vascular plants. [ISBN:0962073342, ISBN:376821110]
+
This is a type of trichome. Axillary trichomes may also be found in angiosperms, but they are different, so suggest we specify that this for hairs in gametophores.
  
−
Comment: A food conducting cell found only in bryophytes in the gametophytic phase and in the seta in the sporophytic phase. Food conducting cells in bryophytes range from conducting parenchyma cells that are indistinguishable from other parenchyma cells to leptoids ''sensu strictu'' that are structurally comparable to sieve elements in vascular plants, including many intermediate forms. The term leptoid is used for cells that are distinguishable from parenchyma cells, whether they be intermediate or leptoids ''sensu strictu''.
+
'''Proposed def., gametophore axillary hair:''' A multicellular trichome consisting of one long terminal cell atop a basal stalk that grows in the leaf axil of a non-vascular leaf.
  
−
part_of leptome
+
Comment: Found in pleurocarpous mosses. Form in the axils of leaf primordia, and may disappear when the gametophore is mature.
  
 +
synonym: club-hair; part_of gametophore
  
−
'''stereid (new term, PO:0025298):''' A ground tissue cell with thickened cell walls. [ISBN:0962073342, ISBN:376821110]
 
  
−
Comment: Found only in bryophytes in gametophore axes or leaves. Functions in support rather than conduction. May or may not retain a living protoplast at maturity.
+
''Make a new general term for '''axillary hair:''' A mutlicellular trichome that has as parts a long terminal cell atop a basal stalk and grows in a leaf axil.''
  
−
part_of stereome
+
''comment: Found in monocots and mosses. The basal stalk may contain one or more cells.''
  
−
===conductive tissue for bryophytes and vascular plants===
+
''New proposed def. for '''gametophore axillary hair:''' An axillary hair that grows in a leaf axil of a non-vascular leaf.''
  
−
====vascular tissue====
+
''Will need to double check definitions of the parts of the axillary hair (from last week's agenda) to make sure they are consistent with this.  Add new terms for axillary hair terminal cell, axillary hair base, and axillary hair basal cell.''
  
−
For vascular plants, we have the class:
+
===[https://sourceforge.net/tracker/?func=detail&aid=3293893&group_id=76834&atid=835555 rhizoid (PO:0030071)]===
  
−
'''portion of vascular tissue (PO:0009015):''' A portion of plant tissue that has parts xylem and phloem. [APweb:Glossary]
+
Moss Ontology definition: Filamentous tissue protruding from the gametophore stem with a rooting function.  
  
−
Comment: Functions in conduction and support. In the stem it is often found as a stele, surrounded by the cortex and surrounding the pith.
+
Rhizoids may also grow from thalli. They arise from an epidermal intial (the rhizoid initial), and so are like trichomes. Like trichomes, they may be uni- or multicellular
  
−
part_of vascular bundle (which is part_of vascular system)
 
  
−
This is okay, but suggest that we make it a child of the new class '''portion of axial tissue''' (see below), and also change definition to include xylem '''or''' phloem.
+
'''Proposed def.:''' A trichome that is part of a plant in the gametophytic phase and has positive gravitropism.
  
 +
Comment: Found in bryophytes and pteridophytes growing from the epidermis of the lower surface of a gametophore or thallus. May be multicellular or unicellular. Usually serves to anchor the plant to the substrate.
  
−
'''Proposed definition:''' A portion of axial tissue that has as parts tracheary elements or sieve tube members and is part of a vascular system.
+
Should we say: May also arise directly from a protonema or create a separate class for protonemal rhizoids?
  
−
Comment: Functions in conduction and support. In shoot axes, vascular tissue is often found as part of a stele or may occur as scattered vascular bundles. May include other types of tissue, such as fibers.
+
develops_from rhizoid initial, participates_in gametophytic phase
  
−
part_of vascular system (should add vascular system participates_in sporophytic phase)
+
''There was a discussion of how different rhizoids develop, and whether or not they could be grouped together. As rhizoid is currently defined, can't include protonemal rhizoids, because they don't develop from an epidermal initial. There are rhizoids on monocots (wurztelhalsrhizoid) that are not part of a gametophyte. Also need term for pegged rhizoids in liverworts.''
  
−
currently part_of vascular bundle. Removed this relation, because it is not true for all plants. Also vascular bundle is now a portion of vascular tissue, so it can't be part_of.
+
''We decided to make a new general class for rhizoids, a child of plant structure, that can include them all. Will put together new definitions and develops_from relations for the [[POC_Conf._Call_5-06-11]].''
  
 +
===[https://sourceforge.net/tracker/?func=detail&aid=3293289&group_id=76834&atid=835555 tmema (PO:0030061)]===
  
−
'''children of vascular tissue:'''
+
Moss Ontology definition: An abscission cell at the base of a gemma (vegetative propagule). Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition
  
−
'''hydathode''' (PO:0005660) - A structural modification of vascular and non-vascular tissues, usually in a leaf, that permits the release of water through a pore in the epidermis. [GR:pj, ISBN:0080374913]
+
Their definition defines a cell type, but they have tmema as a tissue type. It would be the tissue composed of tmema cells
  
−
Should be is_a cardinal organ part. Do hydathodes ever occur on stems or branches, or are they always part of phyllomes?
+
'''Proposed def.:''' A portion of plant tissue that has as parts tmema cells.
  
−
'''proposed definition:''' A cardinal organ part that releases water through a pore.
+
Comment: Found in bryophytes at the base of a gemma. Participates in abscission of the gemma.
  
−
Comment: Usually found on leaves. Hydathodes may have one or more pores that appear to be incompletely developed stomata that lack the ability to open and close. Generally, hydathodes are located at the end of a minor vein. In many plants, hydathodes includes a portion of thin-walled parenchyma between the tracheary elements and the pore, known as an epithem. In some plants, hydathodes are associated with secretory tissue.
+
participates_in gametophytic phase, has_part tmema cell (can't use tmema cell part_of tmema, because they can also occur as single cells in a protonema, next to a brachycyte)
  
 +
''Accepted''
  
−
'''leaf vein''' (PO:0005417) - see more below details below
+
===[https://sourceforge.net/tracker/?func=detail&aid=3293931&group_id=76834&atid=835555 antheridium jacket layer (PO:0030053)]===
  
 +
Moss Ontology definition: A layer of cells that surrounds the spermatogenous tissue that cannot give rise to sperm.
  
−
'''phloem''' (PO:0005417): A portion of vascular tissue whose principal function is conducting organic substances. [GR:pj]
+
The term jacket layer is also used for the outer layer of sporangia. Suggest naming this term '''antheridium wall''' or '''antheridium jacket layer'''
  
−
'''proposed definition:''' A portion of vascular tissue that has as parts sieve tube members.
+
'''proposed definition:''' A portion of plant tissue that is a single layer of cells on the outside of an antheridium.
  
−
Comment: Functions in the conduction of organic substances in vascular plants.
+
Comment: Cells in the antheridium jacket layer surround the inner spermatogenous cells and do not give rise to sperm cells.  
  
 +
part_of antheridium; synonym: sterile jacket layer, antheridium wall
  
−
'''metaphloem''' (PO:0006076): Part of the primary phloem that differentiates after the protophloem and before the secondary phloem, if any of the latter is formed.
 
  
−
'''proposed definition:''' A portion of phloem tissue that is the part of a primary phloem that differentiates after the protophloem and before the secondary phloem, if any of the latter is formed.
+
''Accepted.  Will use antheridium jacket layer as primary name.''
  
 +
===[https://sourceforge.net/tracker/?func=detail&aid=3295055&group_id=76834&atid=835555 hydrome (PO:0030047)]===
  
−
'''protophloem''' (PO:0006077): The first-formed elements of the primary phloem.
+
'''proposed definition:''' A portion of plant tissue that has as parts hyrdoids.
  
−
'''proposed definition:''' A portion of phloem tissue that has as parts the first-formed elements of the primary phloem.
+
Comment: Found in bryophytes, in the center of a non-vascular shoot axis such as a gametophore axis or seta, or in the midrib of a non-vascular leaf. Often surrounded by leptome. May function in conduction of water and minerals and in support, similar to xylem in vascular plants.
  
 +
disjoint_from xylem, participates_in gametophytic phase
  
−
'''tracheid bar''' (PO:0019026): A distinct ring-like structure, composed of tracheid cells, which surrounds the hilum of some taxa e.g., Phaseolus, and forms a groove in the surface of the pericarp (immediately adjacent to the hilum). [ISBN:0080280293]
+
Synonyms: hydrom, leptoxylem (Hebant)
  
−
-should be is_a xylem
 
  
 +
''There was some discussion about exact wording of the definition. BS explained that to a logical reasoner, when you say that X has parts only Ys, it does not follow that X has as parts all the parts of Y. So, for example, hydrome has as parts only hydroid cells excludes the possibility that hydrome has_part hydroid cell nucleus, which of course is wrong.''
  
−
'''xylem''' (PO:0005352): A portion of vascular tissue composed of (''that has as parts'') xylem elements.
 
  
 +
''Add to comment: A hydrome is composed of only hydroid cells.''
  
−
'''vascular bundle (PO:0005020):''' A unit strand of the vascular system containing the vascular tissues, xylem and phloem. In addition vascular cambium is often present. [GR:pj]
+
''Can't use participates in gametophytic phase, because it can also occur in a seta of mosses.''
  
−
This currently is_a portion of plant tissue. Should be is_a portion of vascular tissue.
+
===[https://sourceforge.net/tracker/?func=detail&aid=3295055&group_id=76834&atid=835555 leptome (PO:0030048)]===
  
−
'''proposed definition:''' A portion of vascular tissue that is a unit strand of the vascular system and has as part xylem or phloem.
+
'''proposed definition:''' A portion of plant tissue that has as parts leptoids.
  
−
Comment: Usually contains both xylem or phloem. May also contain other types of tissue such as plant fibers or vascular cambium. May also contain portions of ground tissue.
+
Comment: Found in bryophytes, in non-vascular shoot axes such as a gametophore axis or seta, or in the midrib of a non-vascular leaf. Often surrounding a central hydrome. May function in the conduction of organic substances, similar to phloem in vascular plants.  
  
−
part_of vascular system
+
disjoint_from phloem, participates_in gametophytic phase
  
−
====portion of axial tissue====
+
Synonyms: leptom, leptophloem (Hebant)
  
−
Suggest we add a new parent for vascular tissue, fibers, and non-vascular conducting tissue: '''portion of axial tissue'''
 
  
−
'''Proposed definition:''' A portion of plant tissue that has as parts axial cells.
+
''Leptome has the same issues as hydrome.''
  
−
Comment: Axial tissue occurs in elongated strands and functions in conduction and support. In plant axes, the axial tissue runs parallel to the axis, but it may have other orientations in organs such as phyllomes.
+
''Add to comment: A leptome is composed of only leptoid cells.''
  
−
disjoint_from cortex, disjoint_from pith
+
''Can't use participates in gametophytic phase, because it can also occur in a seta of mosses.''
  
 +
''Need to add to definition of leptoid that they are anucleate at maturity.''
  
−
Children of axial tissue: portion of vascular tissue, portion of plant fiber, hydrome, leptome and sterome. Should add disjoint_from relations between vascular tissue and non-vascular conducting tissue.  
+
===[https://sourceforge.net/tracker/?func=detail&aid=3295056&group_id=76834&atid=835555 stereome (PO:0030050)]===
  
−
[[File:axial_tissue2.jpg]]
+
From Hebant: A typical moss stem comprises, from the outside to the inside, an epidermis with a thin cuticle but no stomata, an outer cortex which frequently consists of supporting ells with thickended walls ("stereids"), an inner cortex of thin-walled conducting cells, and, in a number of species, a central strand of hydroids.
  
 +
'''proposed definition:''' A portion of ground tissue that has as parts stereids.
  
−
=====New children of axial plant tissue:=====
+
Comment: Found in bryophytes in gametophore axes or non-vascular leaves. May function in support.
  
−
'''hydrome:''' A portion of axial tissue that has as parts hyrdoids.
+
participates_in gametophytic phase
  
−
Comment: Found in bryophytes, in the center of a non-vascular shoot axis such as a gametophore or seta, or in the midrib of a non-vascular leaf. Often surrounded by leptome. May function in water conduction and support, similar to xylem in vascular plants.
+
''Stereome has the same issues as hydrome.''
  
−
Synonyms: hydrom, leptoxylem (Hebant)
+
''Add to comment: A stereome is composed of only steroid cells.''
  
 +
''Need to check to see if we can use participates in gametophytic phase, if it occurs  in a seta or not.''
  
−
'''leptome:''' A portion of axial tissue that has as parts leptoids.
+
===[https://sourceforge.net/tracker/?func=detail&aid=3295058&group_id=76834&atid=835555 central strand (PO:0030051)]===
  
−
Comment: Found in bryophytes, in non-vascular shoot axes such as a gametophore or seta, or in the midrib of a non-vascular leaf. Often surrounding a central hydrome. May function in the conduction of organic substances, similar to phloem in vascular plants.
+
From Crum: a group of cells forming a central axis of some stems, usually made of small, elongated cells
  
−
Synonyms: leptom, leptophloem (Hebant)
+
From Schofeld: a central strand of smaller cells in the center of stems of many mosses.
  
  
−
'''central strand:''' A unit strand of axial tissue that has as part hydrome or leptome.  
+
'''proposed definition:''' A portion of plant tissue that is an axial strand in the center of a gametophore axis and has as part hydrome or leptome.  
  
−
Comment: Often contains both hydrome and leptome. Found in bryophytes located in the center of non-vascular shoot axes such as a gametophore axis or seta, or in the costa of a non-vascular leaf.
+
Comment: Often contains both hydrome and leptome. Found in bryophytes. The term central strand is sometimes used to describe a root protostele in vascular plants, but this term should only be used for non-vascular plants. ''Should we add: analogous to a vein or vascular bundle in vascular plants?''
  
 
synonyms: conducting strand, central cylinder
 
synonyms: conducting strand, central cylinder
  
 +
part_of gametophore axis (or can it also be part of a seta?)
 +
 +
''Don't use part of gametophore axis. Can also be part of seta.''
  
−
'''stereome:''' A portion of axial tissue that has as parts stereids.
+
''In defintion, say has as part '''a''' hydrome or '''a''' leptome.''' ''
  
−
Comment: Found in bryophytes.
+
''New proposed comment: Often contains both hydrome and leptome. Found in bryophytes. The term central strand is sometimes used to describe a protostele in vascular plants, but this ONTOLOGY CLASS should only be used for non-vascular plants. Analogous to a vein or vascular bundle in vascular plants.''
  
−
From Hebant: A typical moss stem comprises, from the outside to the inside, an epidermis with a thin cuticle but no stomata, an outer cortex which frequently consists of supporting ells with thickended walls ("stereids"), an inner cortex of thin-walled conducting cells, and, in a number of species, a central strand of hydroids.
+
''Accepted''
 +
 
 +
===[https://sourceforge.net/tracker/?func=detail&aid=3295062&group_id=76834&atid=835555 costa (PO:0030072)]===
 +
 
 +
'''proposed definition:''' A portion of plant tissue that is a single or double strand in the center of a non-vascular leaf and has as part hydrome or leptome.
 +
 
 +
Comment: Found in bryophytes. Often contains both hydrome and leptome. Functions in support and conduction in a phyllid. The term costa is sometimes used for the midrib of monocot leaves, but this term should only be non-vascular leaves.
 +
 
 +
part_of non-vascular leaf
 +
 
 +
synonym: phyllid costa, phyllid midvein, phyllid midrib, non-vascular leaf midvein, non-vascular leaf midrib
 +
 
 +
 
 +
''New proposed comment: Found in bryophytes. Often contains both hydrome and leptome. Functions in support and conduction in a phyllid. The term costa is sometimes used for the midrib of monocot leaves, but this ONTOLOGY CLASS should only be USED FOR non-vascular leaves.''
 +
 
 +
''Accepted''
 +
 
 +
==Parts of sporangium==
 +
 
 +
''Postponed until [[POC_Conf._Call_5-06-11]]''
 +
 
 +
=Other Issues=
 +
'''*Review for OBO Foundry Acceptance'''
 +
 
 +
''Postponed until [[POC_Conf._Call_5-10-11]]''
 +
 
 +
=Upcoming meetings 2011:=
 +
 
 +
'''[http://www.phenotypercn.org/?page_id=458 Phenotype RCN Meeting]: June 1-3rd, Boulder CO'''
 +
 
 +
PJ will attend
  
 +
More details TBA
  
−
'''portion of plant fiber:''' Currently fibers are plant cell types, but they should also be a tissue type.
 
  
−
''Proposed definition: A portion axial tissue that has as parts fiber cells.
 
  
−
Comment: Contains elongated, lignified fiber cells that are dead at maturity.
+
'''[http://www.iplantcollaborative.org/2011/02/09/2011-semantic-web-workshop-june-6-7-santa-fe-nm 2011 Semantic Web Workshop] June 6th and 7th, Santa Fe, NM.  
 +
'''
  
−
Need to create a term '''fiber cell''' that is_a sclerenchyma cell (and also add sclerid)
+
Hosted by Damian Gessler and the iPlant Collaborative, this two-day workshop will focus on biological applications for semantic web services.
  
−
'''phloem fiber:''' A portion of plant fiber that has as parts phloem fiber cells.
+
-JE and JP will be attending
  
−
'''xylem fiber:''' A portion of plant fiber that has as parts xylem fiber cells.
+
-JE has already worked with Damian to implement a SSWAP web service for PO terms, so further collaboration with him and iPlant will benefit the POC going forward.  
  
−
====leaf vein, midrib, costa====
+
For more Workshop details: [http://www.iplantcollaborative.org/Communities/Developers/SemanticWeb Semantic web].
  
−
*'''leaf vein (PO:0020138):''' A strand of vascular tissue in the leaf blade.
 
  
−
is_a portion of vascular tissue; part_of leaf vascular system
+
'''* ICBO 2011  Second International Conference on Biomedical Ontology'''
 +
July 26-30,  2011
 +
Buffalo, New York
  
−
This term only applies to vascular leaves, and should be renamed vascular leaf vein.  
+
[http://icbo.buffalo.edu ICBO]
  
−
'''proposed definition, vascular leaf vein (PO:0020138):''' A strand of vascular tissue that is part of a leaf lamina in a vascular leaf.
+
LC is co-organizing the workshop "From Fins to Limbs to Leaves: Facilitating anatomy ontology interoperability"
 +
along with Melissa Haendel, Chris Mungall, Alan Ruttenberg, David Osumi-Sutherland.
  
−
part_of leaf vascular system, part_of leaf lamina
+
'''Full-Day Workshops Schedule:'''
  
 +
'''July 26 9am-6pm'''  The Ontological Representation of Adverse Events: Working with Multiple Biomedical Ontologies
  
−
*Suggest new term '''primary leaf vein''': A vascular leaf vein that originates from the base of a leaf lamina  where it attaches to the petiole or to the shoot axis if no petiole is present.
+
'''July 27 8.30am-4pm''' Facilitating Anatomy Ontology Interoperability
  
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Comment: A leaf may have more than one primary vein. The central primary vein is the midvein.
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'''July 26 6.30pm-9pm'''  Evening Workshop: Common Logic
  
 +
'''July 27 4pm-8pm''' Evening Workshop: Doctoral and Post-Doctoral Consortium
  
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*'''midvein (PO:0020139):''' The central, and usually the most prominent, vein of a leaf or leaf-like organ. [source: APWeb:Glossary]
+
- LC will attend and represent the PO. Invite other plant people?
  
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Since midvein is_a leaf vein, it should say just "leaf" instead of "leaf or leaf-like organ". Suggest we rename it '''vascular leaf midvein''' to distinguish it from '''costa'''.
 
  
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'''proposed definition of vascular leaf midvein:''' A primary leaf vein that is the central vein of a leaf lamina in a vascular leaf.
 
  
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Comment: Often the most prominent vein of a vascular leaf.
+
'''*Plant Biology 2011, Aug 6-10th, Minneapolis, Minn'''
  
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broad synonyms: mid rib, midrib, mid-rib
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[http://my.aspb.org/?page=Meetings_Annual Plant Biology 2011]
  
 +
Early-bird [http://www.aspb.org/meetings/pb-2011/registration.cfm registration] ends May 13.
  
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*Moss Ontology has requested the term '''midrib''' for bryophytes. It is often called a '''costa'''.
+
Gramene will be putting together a workshop again, focusing on pathways. PJ will present a PO poster.
  
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''Proposed definition for costa:''' A central strand that is part of a non-vascular leaf.
+
TAIR (Kate Dreher) is organizing an Outreach Booth and we are invited to take part.
  
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Comment: Found in bryophytes, especially mosses.
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For inclusion on the program memory stick and in the program book, abstracts must be submitted by '''May 27'''.
  
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part_of non-vascular leaf
 
  
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broad synonyms: mid rib, midrib, mid-rib
 
  
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====Refs:====
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'''* International Botanical Congress (IBC2011)'''
  
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Sperry 2003, IJPS; Hebant 1977;
+
July 23rd-30th 2011, Melbourne, Australia'''
  
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==Sporangium parts==
+
Registration is open  [http://www.ibc2011.com/Dates.htm Important dates]
  
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This is continued from our discussion at the [[POC_Conf._Call_3-8-11]]
+
Symposium 'Bio-Ontologies for the Plant Sciences' under the Genetics, Genomics and Bioinformatics theme, wiil be held on Thursday, 27 July, from 13:30 to 15:30.  
  
−
Currently classes like exothecium, endothecium, primary parietal cell layer and tapetum are part of anther wall (PO:0000002). However, these layers and their constituent cell types can be part of any sporangium, not just an anther. Proposed making them part of a general class sporangium wall (as we did for parts of leaf).
+
Dennis, Alejandra, Pankaj and Ramona are planning to attend.  
  
 +
See [[IBC 2011 Bio-Ontologies Symposium]] wiki page for more details
  
−
See [[Summary of sporangium development]]
+
=Next meeting scheduled for Friday, May 6th, 2011 at 10am PDT/1pm EDT=

Latest revision as of 12:36, 5 May 2011

POC meeting, Webex Conference Call; Date: Tuesday May 3rd, 2011 10am (PDT)

In attendance:

POC members: Laurel Cooper (OSU), Ramona Walls (NYBG), Justin Preece (OSU), Pankaj Jaiswal (OSU), Dennis Stevenson (NYBG), Barry Smith (University at Buffalo, NY), Marie Alejandra Gandolfo (Cornell University)

Absent: Chris Mungall (Lawrence Berkeley National Lab), Justin Elsner (OSU)?

Collaborators: none


Acceptance of the minutes from the POC_Conf._Call_4-28-11? There were no changes, additions or deletions.

Items arising from previous meetings:

Review of apical cell (PO:0030007) and its descendents

Postponed until POC_Conf._Call_5-06-11

New terms and definitions for apical cells

Postponed until POC_Conf._Call_5-06-11

New terms for Physcomitrella and related taxa (continued)

Plant Tissues

paraphyllium (PO:0030069)

Tiny filaments, scales or leaf-like structures scattered on the stems of some leafy bryophytes. Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition (MO definition)

Crum defines them as "Small green outgrowths formed between the leaves on stems and branches of some pleurocarps (mosses that produce archegonia and sporophytes laterally, rather than on the tips of their axes) and a very few leafy liverworts."

Schofield describes paraphyllia as outgrowths of the epidermis, but he also describes leaves that way.

Moss Ontology has paraphyllium listed as a plant organ, but they do not arise from the SAM as phyllomes do.

Proposed definition: A portion of epidermal tissue that is a small outgrowth from the epidermis between the leaves of a gametophore axis.

Comment: Paraphyllia are much smaller than leaves and may be filamentous, scale-like, or leaf-like. Found in pleurocarpous mosses and a few leafy liverworts.

is_a epidermis, part_of gametophore axis

Paraphyllia.jpg The paraphyllia are the small, dark structures between the leaves.


Remove the word "small" from the definition. Don't need it.

Accepted

paraphysis (PO:0030070)

Moss Ontology definition: Sterile, septate, usually uniseriate hairs intermixed with sex organs. Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition

From Parihar: sterile, slender filaments accompanying reproductive organs.

From Schofeld: filamentous sterile structures intermixed with the sex organs of most mosses

These are a kind of trichome


Proposed def.: A slender, usually uniseriate multicellular trichome that grows intermixed with the gametangia.

Comment: Found in bryophytes and pteridophytes, especially in mosses.

adjacent_to gametangium, plural: paraphyses; particpates_in gametophytic phase

Should we add the adjacent_to relation? No. Adjacent to means they are in permanent contact, which is not appropriate here.


New proposed def: A slender multicellular trichome that grows between the gametangia.

Comment: Usually multiseriate. Found in bryophytes and pteridophytes, especially in mosses.


Accepted

axillary hair (PO:0030060)

Moss Ontology definition: A small filament in an axil consisting of one long terminal cell atop a basal stalk (also called club-hair). Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition

This is a type of trichome. Axillary trichomes may also be found in angiosperms, but they are different, so suggest we specify that this for hairs in gametophores.

Proposed def., gametophore axillary hair: A multicellular trichome consisting of one long terminal cell atop a basal stalk that grows in the leaf axil of a non-vascular leaf.

Comment: Found in pleurocarpous mosses. Form in the axils of leaf primordia, and may disappear when the gametophore is mature.

synonym: club-hair; part_of gametophore


Make a new general term for axillary hair: A mutlicellular trichome that has as parts a long terminal cell atop a basal stalk and grows in a leaf axil.

comment: Found in monocots and mosses. The basal stalk may contain one or more cells.

New proposed def. for gametophore axillary hair: An axillary hair that grows in a leaf axil of a non-vascular leaf.

Will need to double check definitions of the parts of the axillary hair (from last week's agenda) to make sure they are consistent with this. Add new terms for axillary hair terminal cell, axillary hair base, and axillary hair basal cell.

rhizoid (PO:0030071)

Moss Ontology definition: Filamentous tissue protruding from the gametophore stem with a rooting function.

Rhizoids may also grow from thalli. They arise from an epidermal intial (the rhizoid initial), and so are like trichomes. Like trichomes, they may be uni- or multicellular


Proposed def.: A trichome that is part of a plant in the gametophytic phase and has positive gravitropism.

Comment: Found in bryophytes and pteridophytes growing from the epidermis of the lower surface of a gametophore or thallus. May be multicellular or unicellular. Usually serves to anchor the plant to the substrate.

Should we say: May also arise directly from a protonema or create a separate class for protonemal rhizoids?

develops_from rhizoid initial, participates_in gametophytic phase

There was a discussion of how different rhizoids develop, and whether or not they could be grouped together. As rhizoid is currently defined, can't include protonemal rhizoids, because they don't develop from an epidermal initial. There are rhizoids on monocots (wurztelhalsrhizoid) that are not part of a gametophyte. Also need term for pegged rhizoids in liverworts.

We decided to make a new general class for rhizoids, a child of plant structure, that can include them all. Will put together new definitions and develops_from relations for the POC_Conf._Call_5-06-11.

tmema (PO:0030061)

Moss Ontology definition: An abscission cell at the base of a gemma (vegetative propagule). Bill and Nancy Malcolm (2006): Mosses and other Bryophytes, an illustrated glossary, second edition

Their definition defines a cell type, but they have tmema as a tissue type. It would be the tissue composed of tmema cells

Proposed def.: A portion of plant tissue that has as parts tmema cells.

Comment: Found in bryophytes at the base of a gemma. Participates in abscission of the gemma.

participates_in gametophytic phase, has_part tmema cell (can't use tmema cell part_of tmema, because they can also occur as single cells in a protonema, next to a brachycyte)

Accepted

antheridium jacket layer (PO:0030053)

Moss Ontology definition: A layer of cells that surrounds the spermatogenous tissue that cannot give rise to sperm.

The term jacket layer is also used for the outer layer of sporangia. Suggest naming this term antheridium wall or antheridium jacket layer

proposed definition: A portion of plant tissue that is a single layer of cells on the outside of an antheridium.

Comment: Cells in the antheridium jacket layer surround the inner spermatogenous cells and do not give rise to sperm cells.

part_of antheridium; synonym: sterile jacket layer, antheridium wall


Accepted. Will use antheridium jacket layer as primary name.

hydrome (PO:0030047)

proposed definition: A portion of plant tissue that has as parts hyrdoids.

Comment: Found in bryophytes, in the center of a non-vascular shoot axis such as a gametophore axis or seta, or in the midrib of a non-vascular leaf. Often surrounded by leptome. May function in conduction of water and minerals and in support, similar to xylem in vascular plants.

disjoint_from xylem, participates_in gametophytic phase

Synonyms: hydrom, leptoxylem (Hebant)


There was some discussion about exact wording of the definition. BS explained that to a logical reasoner, when you say that X has parts only Ys, it does not follow that X has as parts all the parts of Y. So, for example, hydrome has as parts only hydroid cells excludes the possibility that hydrome has_part hydroid cell nucleus, which of course is wrong.


Add to comment: A hydrome is composed of only hydroid cells.

Can't use participates in gametophytic phase, because it can also occur in a seta of mosses.

leptome (PO:0030048)

proposed definition: A portion of plant tissue that has as parts leptoids.

Comment: Found in bryophytes, in non-vascular shoot axes such as a gametophore axis or seta, or in the midrib of a non-vascular leaf. Often surrounding a central hydrome. May function in the conduction of organic substances, similar to phloem in vascular plants.

disjoint_from phloem, participates_in gametophytic phase

Synonyms: leptom, leptophloem (Hebant)


Leptome has the same issues as hydrome.

Add to comment: A leptome is composed of only leptoid cells.

Can't use participates in gametophytic phase, because it can also occur in a seta of mosses.

Need to add to definition of leptoid that they are anucleate at maturity.

stereome (PO:0030050)

From Hebant: A typical moss stem comprises, from the outside to the inside, an epidermis with a thin cuticle but no stomata, an outer cortex which frequently consists of supporting ells with thickended walls ("stereids"), an inner cortex of thin-walled conducting cells, and, in a number of species, a central strand of hydroids.

proposed definition: A portion of ground tissue that has as parts stereids.

Comment: Found in bryophytes in gametophore axes or non-vascular leaves. May function in support.

participates_in gametophytic phase

Stereome has the same issues as hydrome.

Add to comment: A stereome is composed of only steroid cells.

Need to check to see if we can use participates in gametophytic phase, if it occurs in a seta or not.

central strand (PO:0030051)

From Crum: a group of cells forming a central axis of some stems, usually made of small, elongated cells

From Schofeld: a central strand of smaller cells in the center of stems of many mosses.


proposed definition: A portion of plant tissue that is an axial strand in the center of a gametophore axis and has as part hydrome or leptome.

Comment: Often contains both hydrome and leptome. Found in bryophytes. The term central strand is sometimes used to describe a root protostele in vascular plants, but this term should only be used for non-vascular plants. Should we add: analogous to a vein or vascular bundle in vascular plants?

synonyms: conducting strand, central cylinder

part_of gametophore axis (or can it also be part of a seta?)

Don't use part of gametophore axis. Can also be part of seta.

In defintion, say has as part a hydrome or a leptome.

New proposed comment: Often contains both hydrome and leptome. Found in bryophytes. The term central strand is sometimes used to describe a protostele in vascular plants, but this ONTOLOGY CLASS should only be used for non-vascular plants. Analogous to a vein or vascular bundle in vascular plants.

Accepted

costa (PO:0030072)

proposed definition: A portion of plant tissue that is a single or double strand in the center of a non-vascular leaf and has as part hydrome or leptome.

Comment: Found in bryophytes. Often contains both hydrome and leptome. Functions in support and conduction in a phyllid. The term costa is sometimes used for the midrib of monocot leaves, but this term should only be non-vascular leaves.

part_of non-vascular leaf

synonym: phyllid costa, phyllid midvein, phyllid midrib, non-vascular leaf midvein, non-vascular leaf midrib


New proposed comment: Found in bryophytes. Often contains both hydrome and leptome. Functions in support and conduction in a phyllid. The term costa is sometimes used for the midrib of monocot leaves, but this ONTOLOGY CLASS should only be USED FOR non-vascular leaves.

Accepted

Parts of sporangium

Postponed until POC_Conf._Call_5-06-11

Other Issues

*Review for OBO Foundry Acceptance

Postponed until POC_Conf._Call_5-10-11

Upcoming meetings 2011:

Phenotype RCN Meeting: June 1-3rd, Boulder CO

PJ will attend

More details TBA


2011 Semantic Web Workshop June 6th and 7th, Santa Fe, NM.

Hosted by Damian Gessler and the iPlant Collaborative, this two-day workshop will focus on biological applications for semantic web services.

-JE and JP will be attending

-JE has already worked with Damian to implement a SSWAP web service for PO terms, so further collaboration with him and iPlant will benefit the POC going forward.

For more Workshop details: Semantic web.


* ICBO 2011 Second International Conference on Biomedical Ontology July 26-30, 2011 Buffalo, New York

ICBO

LC is co-organizing the workshop "From Fins to Limbs to Leaves: Facilitating anatomy ontology interoperability" along with Melissa Haendel, Chris Mungall, Alan Ruttenberg, David Osumi-Sutherland.

Full-Day Workshops Schedule:

July 26 9am-6pm The Ontological Representation of Adverse Events: Working with Multiple Biomedical Ontologies

July 27 8.30am-4pm Facilitating Anatomy Ontology Interoperability

July 26 6.30pm-9pm Evening Workshop: Common Logic

July 27 4pm-8pm Evening Workshop: Doctoral and Post-Doctoral Consortium

- LC will attend and represent the PO. Invite other plant people?


*Plant Biology 2011, Aug 6-10th, Minneapolis, Minn

Plant Biology 2011

Early-bird registration ends May 13.

Gramene will be putting together a workshop again, focusing on pathways. PJ will present a PO poster.

TAIR (Kate Dreher) is organizing an Outreach Booth and we are invited to take part.

For inclusion on the program memory stick and in the program book, abstracts must be submitted by May 27.


* International Botanical Congress (IBC2011)

July 23rd-30th 2011, Melbourne, Australia

Registration is open Important dates

Symposium 'Bio-Ontologies for the Plant Sciences' under the Genetics, Genomics and Bioinformatics theme, wiil be held on Thursday, 27 July, from 13:30 to 15:30.

Dennis, Alejandra, Pankaj and Ramona are planning to attend.

See IBC 2011 Bio-Ontologies Symposium wiki page for more details

Next meeting scheduled for Friday, May 6th, 2011 at 10am PDT/1pm EDT

Retrieved from "http://wiki.plantontology.org/index.php?title=POC_Conf._Call_5-03-11&oldid=8208"