Details of Changes in PO Release 19

See also New_terms_and_obsolete_terms_Release_19

Back to Release_19

Revised or Updated definitions and/or comments: PAE terms

• axillary shoot system (PO:0006343): A shoot-borne shoot system (PO:0004545) that develops_from an axillary bud (PO:0004709). (was develops_from a vegetative axillary bud)

• axillary reproductive bud (PO:0025072): An axillary bud (PO:0004709) that develops into an reproductive shoot system (PO:0025082).

• basal axillary shoot system (PO:0005001):An axillary shoot system (PO:0006343) that develops from an axillary vegetative bud (PO:0004712) that is part of a stem base (PO:0008039). (Needs further revision - Items_for_future_meetings page.

• axillary bud meristem (PO:0000232): A shoot meristem (PO:0006079) formed in an axil (PO:0025224)

• shoot system meristem (PO:0006079): A portion of meristem tissue (PO:0009013) that is part of a shoot system (PO:0009006).

• shoot apical meristem (PO:0020148): A shoot meristem (PO:0006079) formed at the apex of the shoot axis (PO:0025029), including those originating from an axillary bud meristem (PO:0000232).

---

• embryo sac egg cell (PO:0025123): A plant egg cell (PO:0020094) that is part of an egg apparatus (PO:0020096). Comment: The egg apparatus is part of an embryo sac (PO:0025074).

• embryo sac (PO:0025074): A megagametophyte (PO:0025279) that is located in a plant ovary ovule (PO:0025490). Comment: Produces an embryo sac egg cell (PO:0025123).

• embryo sac central cell (PO:0020090): An embryo sac cell (PO:0025026) that is largest cell in a mature embryo sac (PO:0025074).

---

• laticifer cell (PO:0025031): A ground tissue cell (PO:0025030) that contains latex. Comment: May be simple or branched.

• articulated laticifer cell (PO:0006221): A laticifer cell (PO:0025031) that is joined longitudinally to other articulated laticifer cells to form a tube.

• non-articulated laticifer cell (PO:0006222): A laticifer cell (PO:0025031) that is not joined longitudinally to other laticifer cells to form a tube.

• articulated laticifer (PO:0005008): A portion of secretory tissue (PO:0005656) that has as parts articulated laticifer cells (PO:0006221).

---

• pericarp and child terms exocarp, mesocarp, endocarp- Updated definitions:
  • pericarp (PO:0009084): A portion of plant tissue (PO:0009007) that is the outer layer (wall) of a fruit (PO:0009001), and develops from a plant ovary (PO:0009072) or a carpel (PO:0009030) wall.Added comment: May be fleshy in fruits such as grape.
  • exocarp (PO:0009085): A portion of plant tissue (PO:0009007) that is the outer layer of a pericarp (PO:0009084). Added fruit epidermis as a synonym.
  • mesocarp (PO:0009087): A portion of plant tissue (PO:0009007) that is the middle layer of a pericarp (PO:0009084).
  • endocarp (PO:0009086): A portion of plant tissue (PO:0009007) that is the innermost differentiated layer of a pericarp (PO:0009084).

---

aerial tuber (PO:0004548): A shoot axis tuber (PO:0004543) that develops above ground.

---

• antheridiophore (PO:0030033): revised def'n: A stalk (PO:0025066) that supports an antheridium head (PO:0030075). Added relation has_part antheridium head (PO:0030075)

• archegoniophore (PO:0030034): revised def'n: A stalk (PO:0025066) that supports an archegonium head (PO:0030034). Added relation has_part archegonium head (PO:0030034)

---

• placenta (PO:0025078): made it broader (any interface between a gametophyte and a sporophyte with transfer cells)

• second order inflorescence (PO:0025240): fixed def'n: changed 'second order inflorescence branch' to 'second order inflorescence axis', because that is the correct term name.

• leaf sinus (PO:0025384): Added comment that it can be rounded or angled.
• tubercle (PO:0025352): An enlarged leaf base (PO:0020040) that is fused with adjacent shoot axis (PO:0025029) tissue. Modified comment: "In species with tubercles, the areole bud (PO:0025353) is often found at the distal end of the tubercle. The areole bud originates in the leaf axil (PO:0009023) of the leaf that becomes the tubercle, but is displaced to the tip through elongation of the tubercle."

Modified relations, PAE

see also the notes above

• leaf develops_from vascular leaf primordium > vascular leaf develops_from vascular leaf primordium

• archegonium egg cell (PO:0025122) part_of archegonium > archegonium egg cell located_in archegonium >archegonium egg cell located_in venter
• petiole lamina (PO:0025129)is_a leaf lamina > petiole lamina is_a lamina

• lamina (PO:0025060) is_a cardinal organ part > lamina is_a cardinal part of multi-tissue plant structure, (to allow for lamina on seeds and fruits)

• tuber cortex (PO:0025055) is_a shoot axis cortex > tuber cortex is_a cortex

• tuber pith (PO:0025052) is_a shoot axis pith > tuber pith is_a pith

• tuber storage parenchyma (PO:0025036) part_of shoot axis tuber > tuber storage parenchyma part_of tuber (PO:0025522). Added comment: If you are annotating to this term, please add an additional annotation to either shoot axis tuber (PO:0004543) or tuberous root tuber (PO:0025476).

• Removed peduncle part_of inflorescence (incorrect relation, does not work for cases of single flowers)

New Relations- PAE:

• axillary shoot system (PO:0006343) develops_from axillary bud
• cardinal organ part is_a cardinal part of MTPS and part_of plant organ, (added cross product to definition)
• organ margin (PO:0025005) part_of organ lamina
• phyllome margin (PO:0025018) part_of phyllome lamina (latter as XP)
• laticiferous cell (PO:0004005, obsolete) replaced_by laticifer cell (PO:0025031)
• stele (PO:0025197) part_of plant axis (PO:0025004)
• tuberous root tuber (PO:0025476) develops_from tuberous root (PO:0025523)

Updated definitions and/or comments: PSDS terms

• gametophyte development stage (PO:0028003): removed the phrase "or fertilization" from the definition, added PO ids. Added new sentence to comment.

• flower development stage (PO:0007615)

• fruit development stage (PO:0001002)-

• collective plant organ structure development stage (PO:0025338)- modified definition and comment to include PO:ids.

• whole plant fruit formation stage (PO:0007042)

• whole plant fruit ripening stage (PO:0007010)

• whole plant flowering stage (PO:0007016)
• K second mitotic division stage (PO:0001015)

New or modified relations, PSDS

• Made fruit development stage is_a plant structure development stage (instead of collective plant organ structure development stage)

Added relation collective plant organ structure development stage has_participant collective plant organ structure, using intersection_of tags.

Made whole plant fruit formation stage (PO:0007042) and whole plant fruit ripening stage (PO:0007010) subclasses of whole plant fruit development stage and updated their definitions.

Updated names and definitions of:

• (PO:0007032) whole plant fruit formation stage up to 10%
• (PO:0007009) whole plant fruit formation stage 10 to 30%
• (PO:0007029) whole plant fruit formation stage 30 to 50%
• (PO:0007007) whole plant fruit formation stage 50 to 70%
• (PO:0007027) whole plant fruit formation stage 70% to final size

Added PO IDs to the definitions of the following terms:

laticifer cell (PO:0025031)

articulated laticifer cell (PO:0006221)

non-articulated laticifer cell (PO:0006222)

articulated laticifer (PO:0005008)

gametophyte development stage (PO:0028003)

fruit development stage (PO:0001002)

fruit initiation stage (PO:0025503)

fruit size up to 10% stage (PO:0025504)

whole plant fruit development stage (PO:0025500)

whole plant fruit formation stage (PO:0007042)

whole plant fruit ripening stage (PO:0007010)

embryo sac egg cell (PO:0025123)

embryo sac (PO:0025074)

placenta (PO:0025078)

embryo sac central cell (PO:0020090)

leaf lamina (PO:0020039)

leaf lamina abaxial epidermis (PO:0000049)

leaf lamina adaxial epidermis (PO:0000050)

leaf lamina areole (PO:0025392)

leaf lamina base (PO:0008019)

leaf lamina crena (PO:0025519)

leaf lamina epidermis (PO:0000047)

leaf lamina intramarginal vein (PO:0025520)

leaf lamina lobe (PO:0025517)

leaf lamina margin (PO:0025009)

leaf lamina stomatal complex (PO:0025185)

leaf lamina tooth (PO:0025518)

leaf lamina vascular system (PO:0000048)

leaf lamina vein (PO:0020138)

leaf tip (PO:0025142)

organ lamina (PO:0025513)

petiole lamina (PO:0025129)

phyllome lamina (PO:0025396)

phyllome lamina areole (PO:0025391)

phyllome lamina crena (PO:0025516)

phyllome lamina lobe (PO:0025514)

phyllome lamina tooth (PO:0025515)

phyllome lamina vein (PO:0025348)

tubercle (PO:0025352)

leaf base PO:0020040

phyllome base (PO:0025140)

leaf (PO:0025034)