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The process whose specific outcome is the progression of the pollen grain over time, from its formation to the mature structure. The process begins with the meiosis of the microsporocyte to form four haploid microspores. The nucleus of each microspore then divides by mitosis to form a two-celled organism, the pollen grain, that contains a tube cell as well as a smaller generative cell. The pollen grain is surrounded by an elaborate cell wall. In some species, the generative cell immediately divides again to give a pair of sperm cells. In most flowering plants, however this division takes place later, in the tube that develops when a pollen grain germinates. The cellular component assembly that is part of the initial shaping of the component during its developmental progression. The developmental process pertaining to the initial formation of an anatomical structure from unspecified parts. This process begins with the specific processes that contribute to the appearance of the discrete structure and ends when the structural rudiment is recognizable. An anatomical structure is any biological entity that occupies space and is distinguished from its surroundings. Anatomical structures can be macroscopic such as a carpel, or microscopic such as an acrosome. The aggregation, arrangement and bonding together of a cellular component. The process whose specific outcome is the progression of the gametophyte over time, from its formation to the mature structure. The gametophyte is the gamete-producing individual or phase in the life cycle having alternation of generations. An example of this process is found in Arabidopsis thaliana. The process by which cellular structures, including whole cells or cell parts, are generated and organized. Morphogenesis pertains to the creation of form. A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of external structures that lie outside the plasma membrane and surround the entire cell. The formation of reticulate pollen wall pattern consisting of two layers, exine and intine. The formation of the pollen exine. The reticulate pollen wall pattern consists of two layers, exine and intine. A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a cellular component.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: pollen wall assembly
Acc: GO:0010208
Aspect: Biological Process
Desc: The formation of reticulate pollen wall pattern consisting of two layers, exine and intine.
Synonyms:
  • pollen wall formation
Proteins in PDR annotated with:
   This term: 5 [Search]
   Term or descendants: 20 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0010208 - pollen wall assembly (interactive image map)
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Created and Maintained by: Michael Riffle