POC Conf. Call 7-14-10

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POC meeting, Webex Conference Call; Date: July 14th, 2010 10am (PDT)

In attendance:

POC members:

Absent:

Collaborators:


Acceptance of the minutes from the 6-30-10 meeting? All in favor?


Preparations for next release

1. What needs to be done


Review of changes discussed at previous meetings

1. gametophyte and sporophyte were made obsolote. Add 'consider whole plant' relation to both, and comments to add participates_in gametophytic or sporophytic stage.

Part of and is_a children of these terms were moved to whole plant.

Also deleted the temporary terms gametophytic cell and sporophytic cell.


2. Made new term embryo sac ((PO:0025074): a female gametophyte in angiosperms. Is_a female gametophyte. Antipodal cell, central cell and egg apparatus are part_of embryo sac (rather than part of female gametophyte).


egg cell (PO:0020094) was part_of egg apparatus, but this does not allow for eggs that are not in angiosperms. Therefore, changed relation to egg_apparatus has_part egg cell.


3. New top level term plant structure system (PO:0025024): An anatomical system in a plant.

Has new child root system (PO:0025025): An axial plant structure system that produces root apical meristems and the plant structures that arise from them.

Renamed shoot to shoot system (PO:0009006): An axial plant structure system that produces shoot apical meristems and the plant structures that arise from them. Related synonym: shoot, narrow synonyms: crown (sensu Poaceae) and crown.

Do we want to keep this as a rename of shoot, or should be make a new term shoot system, and merge shoot with it?


Vascular system (PO:0000034) is also a child of plant structure system.


4. Made new term plant axis (PO:0025004): An axial plant organ. Comment: Includes roots and shoots.

Is_a plant organ.

Children are:

root (PO:0009005):A plant axis that is part of a root system

and the new term shoot axis (PO:0025029): A plant axis that is part of a shoot system. Comment: often bears leaves and branches. Related synonym: shoot. Children: stem, branch

Last week's minutes say that a stem has parts nodes and internodes, but any shoot axis could have nodes and internodes, therefore, that should perhaps go here, instead of under stem. Also, should it be what a comment rather than part of definition, if we want to include moss or liverwort stems?


5. Stem was made a child of shoot axis. Proposed definition: A shoot axis that is the primary axis of a plant. Comment (from old definition): Often bears leaves and buds. It is usually above ground, more or less negatively geotropic, and exogenous in origin. Often has indeterminate in growth.

Because stem is only the primary axis, and does not include branches or secondary axes, we will need to change all of it's part of children (like stem cortex, interfascicular region, stem epidermis, etc.) to be part of shoot axis and rename them accordingly. Will do this after we agree on final definitions for stem and shoot terms.


6. Made new term branch (PO:0025073): A shoot axis that develops from an axillary meristem or from equal divisions of the shoot apical meristem. Narrow synonyms: secondary axis, tertiary axis, higher-order axis.


7. We decided that tuber (PO:0004543) is a secondary axis by definition, which equals branch (PO:0025073).

Proposed definition:A swollen or enlarged storage branch with determinate growth. Comment: May bear scale leaves and subtending axillary buds. Found in potatoes.

See also comment under grandparent term (shoot axis) that it may bear leaves and branches.


Also made stolon (PO:0003024) and rhizome (PO:0004542) children of branch.

Proposed definitions:

Stolon: A branch that is slender, prostrate or trailing and above-ground and produces roots and sometimes erect shoots at its nodes. (AP web)

Rhizome: A branch that grows horizontally and produces shoots above and roots or rhizoids below. Comment: Usually produces scale-like leaves. May produce rhizoids, especially in Pteridophytes.

Need to determine if tubers are always determinate and if rhizomes are always indeterminate.


8. Add terms vascular leaf and non-vascular leaf, as children of leaf. Current term leaf=vascular leaf, so change its name to vascular leaf, and make new parent term leaf.

phyllome (PO:0006001)

>leaf (PO:0025034): new term; needs a definition

>>non-vascluar leaf (PO:0025075): a leaf in a non-vascular plant. Comment: includes moss and liverwort leaves.

>>bract (PO:0009055): A leaf, usually different in form from the foliage leaves, subtending a flower or inflorescence (This fits vascular bracts, so maybe should be a child of vascular leaf), but sometimes the term bract is used in bryophytes).

>>vascular leaf (PO:0009025): Commonly thought of as one of the three basic parts of the seed plant body, a structure usually of determinate growth, without secondary thickening, and of superficial origin, often flattened and photosynthetic in part, and in the axil of which is found a bud.

>>>cotyledon (PO:0020030): A leaf formed at the first node of a sporophyte.

Older unresolved terms

1. fruit (See SF Tracker: fruit)

Current def'n: The seed-bearing structure in angiosperms, formed from the ovary after flowering.


Proposed new def'n: A collective plant structure that contains a post-fertilization stage gynoecium and any other structures of the flower that mature with it. (Comment: Exceptions are cases of parthenocarpy, apomixis or other hormone-induced conditions.

Note that we may need to define parthenocarpy at some point (or put in a dbx ref for it). Dbx ref to parthenogenesis: Medical subject heading Ontology D010312


Barry suggested that we reword the second half of the definition, because the final word 'it' was ambiguous about what it was referring to, and the use of the word 'other' was unclear. We agreed that the second part of the definition about other floral structures should go into the comments section. Started to discuss whether or not the seed should be included as part of the definition (fruit contains seed), but ran out of time. To be continued next meeting.



2. Embryo (See SF Tracker: embryo)


Current def'n: A young sporophyte contained within a seed. [source: APWeb:Glossary, GR:pj]

Proposed def'n: A sporophyte in the early stages of growth and differentiation, consisting of precursor tissues for the leaves, stem (see epicotyl/hypocotyl) and root (see radicle).

We could mention the cotyledons in a comment- specific to flowering plants


(2) See Cultured embryo PO:0000010 for definition of in vitro plant embryo

(3) Adventitious embryos do not arise from zygotes -add a comment?

Relationships:

(1) has no is_a parent, is_a sporophyte, which makes it a whole plant through transitivity (2) develops_from zygote (see comment above) Usually (3) embryo contained_in archegonium (works for land plants, not charophytes (doi: 10.1111/j.1469-8137.2009.03054.x)


3. stalk (PO:0025066)

(See SF Tracker: stalk)

This was added as a new term at the Ithaca meeting on 12/2009, to cover a number of the terms lacking is_a parents.

current def'n: An 
elongated, sub-cylindrical to cylindrical structure that supports another 
organ or regional part of an organ.

Proposed def'n: A cardinal organ part that is elongated and
 sub-cylindrical to cylindrical and supports an 
organ or another cardinal organ part.

-made it a child of cardinal organ part (as per its definition) rather than an organ.


Proposed children of stalk: (Test: do all of these fit the definition?)

  • filament: A stalk that is part of a stamen.(stamen:organ)
  • petiole: A stalk that is the basal part of a leaf. Supports the lamina. (leaf:organ)
  • petiolule: A stalk that is the basal part of a leaflet. Supports the leaflet lamina. (leaflet:cardinal organ part)
  • funicle: A stalk which attaches the ovule to the
 placenta.(ovule: cardinal organ part)
  • gynophore: A stalk at the base of the ovary. 

(ovary: cardinal organ part)


current def'n: That part of the main axis of a pinnate or more highly compound leaf, that bears leaflets or divisions of the axis.(leaf:organ)


current def'n: The stalk of an inflorescence; that part of
 the inflorescence below the first flower or inflorescence branch and above 
the last foliage leaf/pair of foliage leaves.

>>This should probably be is_a branch (secondary or higher order shoot axis)

proposed def'n: A branch of an inflorescence or an individual flower (R, E, E 4th edition).


current def'n: Basal part of the ultimate branch of the inflorescence. [source: APWeb:Glossary]

>>This should probably be is_a branch (secondary or higher order shoot axis)

proposed def'n: A branch that supporta an individual flower in an inflorescence that contains more than one flower (LC revised from R,E,E4th edition).



4. New is_a children of cardinal organ part (See SF Tracker: new is_a children of cardinal organ part)


*receptacle: (See SF Tracker: receptacle)

Current def'n: The region at end of pedicel or axis to which parts of flower are attached. [source: APWeb:Glossary, POC:curators].

proposed def'n: The region at the top of either the peduncle or pedicel where the floral appendages (for example, sepals, petals, stamens, and pistils) are attached.(Brooklyn Botanic Garden http://www.bbg.org/gar2/topics/botany/parts_flowers.html)


Comments: If both pedicel and peduncle is_a stalk, and stalk is_a 'cardinal organ part', then both pedicel and peduncle must be part of some organ for this to work.


Current def'n: A cup- or tube-like structure bearing perianth and stamens on its rim, so these arise above the base, and often above the top, of the ovary of a flower.

proposed def'n:

made part_of receptacle instead of part_of flower


Current def'n: A more or less abrupt swelling, especially at the apex or base of a petiole or leaf sheath, often glandular and/or being the place where a plant responds to touch, gravity or light, in panicoid grasses a swollen region in the stem above the intercalary meristem - such a definition would also include stems of Chloranthaceae, Acanthaceae, Caryophyllaceae, Amaranthaceae, etc., cf. articulation. [source: APWeb:Glossary]


-currently is_a (an) organ

proposed def'n:

Upcoming Conferences and Meetings: Updates:

* International Botanical Congress (IBC2011). July 23rd-30th 2011, Melbourne, Australia. Important dates (http://www.ibc2011.com/Dates.htm):

Our proposal for the symposium 'Bio-Ontologies for Plant Sciences' has been accepted, under the theme Genetics, genomics and bioinformatic. The organizers have asked us to confirm three speakers and titles by July 16th. As of our last discussion, Ramona and Pankaj were planning to attend and give talks. Must confirm that grant money can be used for international travel and confirm third speaker. Ramona has contacted Angelica Cibrian (Harvard) from the Genomics of Seed Plants project and she is interested in being a potential speaker, will contact other possible speakers in Australia if she is not available.

Ramona contacted the organizers about whether or not it is possible to get a room with Internet for outreach activities, will contact them again. Do we want to organize an annotation workshop?

Dennis and Alejandra are already planning to attend IBC2011 and speak in other symposia.


* Bio-Ontologies 2010: Semantic Applications in Life Sciences. July 9th and 10th, 2010, Boston, Mass. Satellite Interest Group (SIG) meeting preceding the International Society for Computational Biology (ISCB). Laurel and Ramona attended and presented our one page write up [[1]] as a 'flash update talk' and poster. Had casual meetings with people from OBI and Cell Ontology.


* American Society of Plant Biology (ASPB) July 31-Aug 4th 2010, Montreal, Quebec, Canada. Laurel, Pankaj going, PO Poster presentation, Outreach Booth and Annotation Workshop with Gramene.

Laurel is organizing a booth with other database groups: Gramene, SGN, maizeGDB, TAIR and BAR.

We should prepare a brochure to distribute, similar to the one Gramene has.

Annotation workshop with Gramene is scheduled for Saturday July 31, 8am-12pm. 62 people are signed up! more details TBA


* Botanical Society of America (BSA)- July 31-Aug 4th 2010. Providence, Rhode Island. Dennis, Alejandra attending, Ramona presenting, 15 minute oral presentation, Abstract submitted 3/26/10.


* POC meeting to be held at NYBG in fall 2010. Date TBD.

Will invite outside experts, scientists, students and postdocs.

Please fill out Doodle Poll re. dates that you are or are not available: http://www.doodle.com/6n4pmknkeebk9khg

We need to pick a date for this meeting ASAP so folks who are flying in can get tickets!


X. Next meeting scheduled for: Weds, July 21th, 10am

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