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K second mitotic division stage
Term Information
Accession
PO:0001015
Name
K second mitotic division stage
Ontology
plant_structure_development_stage
Synonyms
tricellular pollen development stage (exact), tricellular pollen stage (exact), pollen stage 9 in Arabidopsis (related), stamen stage ST6-4 (related)
Alternate IDs
None
Definition
A pollen development stage (PO:0001007) during which the generative cell (PO:0020097) undergoes mitotic division to form two male gametes, the pollen sperm cells (PO:0025121).
Source:
POC:Laurel_Cooper,
TAIR_curator:Katica_Ilic
Comment
In taxa with mature two-celled pollen (PO:0025281), the second mitotic division takes place after pollen germination (GO:0009846), in the germinating pollen tube cell (PO:0025195). Note: This term overlaps with the GO BP term: generative cell mitosis (GO:0055047): The process in which the generative cell divides by mitosis to form two haploid cells. These will subsequently differentiate into sperm cells.
Subset
None
Related
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