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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.
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.
27 sty 2020 · We conceptually summarize how the study of pollen on stigmas of spent flowers can reflect key drivers and functional aspects of the plant–pollinator interaction (e.g. competition, facilitation or commensalism).
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.
28 cze 2008 · Siphonogamy, the delivery of nonmotile sperm to the egg via a pollen tube, was a key innovation that allowed flowering plants (angiosperms) to carry out sexual reproduction on land without the need for water. This process begins with a pollen grain (male gametophyte) alighting on and adhering to the stigma of a flower.
1 lip 2013 · Pollen–stigma interaction is crucial for the reproductive success of flowering plants. Upon pollination, a cell to cell interaction occurs between the stigma papillae and pollen grains, leading to an exchange of chemical signals between the two.
