Any feedback?
Please rate this page
(ontology.php)
(0/150)

BRENDA support

Ontology explorer

Gene ontology
Version 2014-12-22
use AND (NOT) or OR
use AND (NOT) or OR
restrict to BRENDA links:
4 different search results found


Details for embryo sac development
Gene ontology ID
GO:0009553
Definition
The process whose specific outcome is the progression of the embryo sac over time, from its formation to the mature structure. The process begins with the meiosis of the megasporocyte to form four haploid megaspores. Three of the megaspores disintegrate, and the fourth undergoes mitosis giving rise to a binucleate syncytial embryo sac. The two haploid nuclei migrate to the opposite poles of the embryo sac and then undergo two rounds of mitosis generating four haploid nuclei at each pole. One nucleus from each set of four migrates to the center of the cell. Cellularization occurs, resulting in an eight-nucleate seven-celled structure. This structure contains two synergid cells and an egg cell at the micropylar end, and three antipodal cells at the other end. A binucleate endosperm mother cell is formed at the center. The two polar nuclei fuse resulting in a mononucleate diploid endosperm mother cell. The three antipodal cells degenerate
Synonyms
1. female gametophyte development
References
1. GOC: mtg plant
2. GOC: tb
Legend
is an element of the parent element
is a part of the parent element
is related to the parent element
derives from the parent element
// at least 1 tissue/ enzyme/ localization link in this branch
// tissue/ enzyme/ localization link to BRENDA
Condensed Tree View
Gene ontology
Tree view
Gene ontology