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11 cze 2004 · In this review, we (1) survey recent discoveries of pollen and stigma functions both before and after they make contact, and (2) address the great diversity in pollen and stigma structures across taxa, focusing on how they accomplish key tasks in pollination.
24 gru 2021 · The function of sigma is to receive pollen grains and germinate them. First, the stigma captures the pollen. Next, as the pollens stick to it, the dry pollen grains get rehydrated or germinated.
Pollen and stigma structure and function: the role of diversity in pollination. Plant Cell. 2004;16 Suppl (Suppl):S84-97. doi: 10.1105/tpc.015800. Epub 2004 Apr 9. Authors. Anna F Edlund 1 , Robert Swanson, Daphne Preuss. Affiliation.
Pollen and stigma structure and function: the role of diversity in pollination. Anna F Edlund 1 Howard Hughes Medical Institute, Molecular Genetics and Cell Biology Department, University of Chicago, Chicago, Illinois 60637, USA.
1 sty 2007 · Recent years, studies indicated that stigma closure may increase pollen capture and receipt, improve pollen germination and pollen tube growth, and prevent intra-floral selfing.
1 sty 2003 · In wet stigmas, stigma receptivity implies the production of exudates rich in proteins, free amino acids, lipids, and carbohydrates, which sets up a proper environment for pollen hydration, germination, and initial pollen tube growth.
The angiosperm stigma is an efficient structure with both morphological and physiological adaptations that enable pollen capture, hydration and germination. The stigma surface may play a vital part in controlling interspecific hybridization and in regulating compatibility relationships within species. The structural and physiological features ...
