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23 mar 2021 · This study provides evidence that mRNA sequencing can be used to address complex questions related to stigma–pollen interactions over time in pollination ecology.
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.
Various plant tissues from sunflower (whole seedlings, hypocotyl segments, stigma from capitulum, protoplasts and isolated oil bodies) have been tested for detection of NO using MNIP-Cu. In this context, the probe has been observed to be relatively nontoxic at concentrations up to 50 µM.
9 kwi 2021 · Upon pollination by pollen from loss-of-function PCP-B mutants (pcp-bγ and pcp-bβ/γ), WT stigmas showed significantly slower pollen hydration and a significantly reduced capacity to suppress stigmatic ROS levels compared to WT stigmas pollinated by WT pollen .
25 sty 2023 · A signalling mechanism ensuring intraspecies and interspecies reproductive barriers in flowering plants is uncovered.
23 maj 2012 · Due to the spatial separation between male and female pollen grains from the anther of most flowering plants, including orchids, pollens are transported by wind or animals and deposited onto the receptive surface of the stigma of a different plant.
29 sty 2024 · Rapid touch-sensitive stigma closure is a novel plant reproductive trait found in hundreds of Lamiales species. The origins, mechanisms, and functions of stigma closure remain poorly understood, but its repeated loss in self-fertilizing taxa and direct tests implicate adaptive roles in animal-mediated cross-pollination.
