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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.
28 cze 2008 · Regulated hydration of pollen is clearly an essential element of normal pollen development on stigmas of Brassica and Arabidopsis, and it has been suggested that while lipids provide the channel for water uptake by pollen, proteins play the key role in regulating this process (Swanson et al., 2004).
20 maj 2023 · In higher plants, anther development and pollen-stigma interaction require complex cell–cell communications, and various peptide/RLK signaling play essential roles in these processes. In this review, we provide a comprehensive summary and overview of the role of peptide/RLK signaling during anther development and subsequent pollen-stigma ...
The production of extracellular lipid rich secretions on stigma surface is initiated at the staminate stage of stigma development and it increases at the receptive stage due to enhanced availability of elaioplasts and endoplasmic reticulum network in the basal region of the papillae.
1 sty 2017 · Animal-pollinated plants display a multiplicity of structural adaptations that function to promote effective cross-pollen dispersal and reduce pollen wastage, especially on incompatible stigmas.
1 lip 2013 · Stigma development. Sunflower. Introduction. 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.
8 maj 2023 · Zhang et al. recently reported a role for reactive oxygen species (ROS) during sporophytic self-incompatibility in the Brassicaceae 11, where the receptor kinase FERONIA (FER) was shown to be responsible for regulating stigma ROS through mediating functions of RHO-like GTPases (ROP) and the NADPH oxidases RESPIRATORY-BURST OXIDASE HOMOLOGS (RBOH).
