Jan 2011 Release Page

This page is under construction.....

Summary of Changes to PO Jan2011

List of Obsoleted Terms

• pollen tube (PO:0006345) 97 pages of annotations:all from Arabidopsis

• pollen tube tip (PO:0000028) 9 annotations from Arabidopsis

• root hair (PO:0000256) ~100 annotations from various sources
• root hair tip (PO:0000029) 1 annotation from Arabidopsis

• floral epidermis (PO:0008043) 1 annotation from Arabidopsis

• floral stomatal complex (PO:0008044) No Annotations

• elongation zone (PO:0020125) (replaced by root elongation zone (PO:0025181) ~40 annotations, all from Arabidopsis

• papillae (PO:0002001) 6 annotations from Arabidopsis

• trichome branch (PO:0008031) (replaced by 'multicellular trichome branch cell' in PO plus unicellular trichome branch in GO):No Annotations

• primary root elongation zone (PO:0003003) ~40 annotations from Arabidopsis, 1 from Oryza

def: "A zone of small, densely cytoplasmic cells that are dividing and expanding in size located behind the zone of cell division in the primary root." is_a: PO:0020125 ! elongation zone relationship: part_of PO:0020127 ! primary root

List of New Terms

• plant anatomical entity (PO:0025131): An anatomical entity (CARO:0000000) that is or was part of a plant.
• plant anatomical space (PO:0025117): An anatomical space (CARO:0000005) that is part of a plant.
• reproductive shoot system (PO:0025082): A shoot system in the sporophytic phase that has as part at least one sporangium.
• gynoecium ridge (PO:0025088): A gynoecium in the early stages of development, characterized as a ridge on the abaxial surface of the floral meristem that develops from a gynoecium primordium.
• dehiscence zone (PO:0025092): A portion of plant tissue that is part of a plant structure and consists of a narrow band of cells that undergoes dehiscence upon maturation of the structure.
• pollen tube cell (PO:0025195): A plant cell that develops from a vegetative cell and forms a tubular extension of the pollen grain. [source: POC:rw]

Comment: Carries the male gametes to into or near the ovule. May be branched in gymnosperms. See GO for pollen tube and pollen tube tip. (need to add GO term ids)

• papilla cell (PO:0025166): An epidermal pavement cell with a short protuberance. [source: POC:curators]

Comment: See GO for the subcellular component papilla.(need to add GO term ids)

• stigma papilla cell (PO:0025168):
• leaf papilla cell (PO:0025167):
• archegonium egg cell
• embryo sac egg cell
• antheridium sperm cell
• pollen sperm cell
• primordium (PO:0025127)
• phyllome primordium
• trichome
• multicellular trichome
• trichome cell
• multicellular trichome branch
• multicellular trichome branch cell
• phyllome trichome
• bract trichome
• carpel trichome
• thorn
• prickle
• spine
• root parenchyma (PO:0025095): A portion of parenchyma tissue that is part of a root system.
• root elongation zone (PO:0025181): (because definition of elongation zone was incorrect and added new term, new id)
• differentiation zone
• elongation zone
• plant axis differentiation zone (PO:0025119)
• stem internode differentiation zone (PO:0008042)
• plant axis elongation zone (PO:0025180).
• stomatal complex
• phyllome stomatal complex
• leaf stomatal complex
• root elongation zone (PO:0025181)

List of Renamed Terms

• Secretory trichome was renamed glandular trichome
• seed trichome was made the primary name for PO:0004511, (changed seed hair to exact synonym, added pubescence as related synonym)
• root differentiation zone (PO:0020135; renaming of old term differentiation zone)