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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.
22 paź 2013 · In plants with a wet stigma, the surface cells release a viscous secretion in which pollen grains are embedded without any species selectivity (Sanchez et al., 2004). Pollen capture and adhesion is mediated mainly by the stickiness and surface tension of the stigma exudate.
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.
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.
1 maj 1983 · The intact stigma of Trifolium pratense possesses a smooth receptive surface fringed by a few ranks of brush hairs. This surface is ensheathed by a thin (75–100 nm) but highly impermeable cuticle, which encloses four to five ranks of secretory cells immersed in their secretory products.
28 cze 2008 · Summary. 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.
8 kwi 2014 · The stigma exudate, i.e., the extracellular secretion that covers the stigma outermost surface, has been usually regarded as a reservoir of water, secondary metabolites, cell wall precursors...
