Results 181 to 190 of about 6,669 (206)
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Membrane proteins involved in pollen-pistil interactions
Biochimie, 1999Self-incompatibility (SI) is a widespread mechanism in angiosperms which prevents self-fertilization. This mechanism relies on cell-cell interactions between pollen and pistil. Among the different SI systems that have been reported, two have been particularly investigated: the gametophytic system of Solanaceae and the sporophytic system of Brassicaceae.
Giranton, Jean-Loîc +4 more
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2014
Pollen–pistil interaction is unique to flowering plants. This is one of the critical postpollination phases that determine reproductive success. Following conspecific compatible pollination, pollen grains germinate on the receptive stigma and the resulting pollen tubes grow through the tissues of the stigma and style and enter the ovules where they ...
K. R. Shivanna, Rajesh Tandon
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Pollen–pistil interaction is unique to flowering plants. This is one of the critical postpollination phases that determine reproductive success. Following conspecific compatible pollination, pollen grains germinate on the receptive stigma and the resulting pollen tubes grow through the tissues of the stigma and style and enter the ovules where they ...
K. R. Shivanna, Rajesh Tandon
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1986
The need, site, and eventually, mode of pollen-pistil interaction; in other words—the extent of compatibility—is the focus of my work. In the case of the angiosperm flower, stigma, style and ovary are the sites where interaction occurs. In binucleate species, no active interaction seems to occur at the stigma site.
Gabriella Bergamini Mulcahy +1 more
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The need, site, and eventually, mode of pollen-pistil interaction; in other words—the extent of compatibility—is the focus of my work. In the case of the angiosperm flower, stigma, style and ovary are the sites where interaction occurs. In binucleate species, no active interaction seems to occur at the stigma site.
Gabriella Bergamini Mulcahy +1 more
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1984
Pollination is a process that is vital for the survival not only of flowering plants, but also for mankind. Yet human efforts to manipulate the reproduction of crop plants have been largely empirical. Today, research into plant reproduction is not given high priority.
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Pollination is a process that is vital for the survival not only of flowering plants, but also for mankind. Yet human efforts to manipulate the reproduction of crop plants have been largely empirical. Today, research into plant reproduction is not given high priority.
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The molecular and genetic basis of pollen–pistil interactions
New Phytologist, 2001SummaryOver the past decade or so, there has been significant progress towards elucidating the molecular events occurring during pollination in flowering plants. This process involves a series of complex cellular interactions that culminates in the fusion between male and female gametes. The process also regulates crucial events such as pollen adhesion,
M J, Wheeler +2 more
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Self-incompatibility and other pollen-pistil interactions
Current Opinion in Plant Biology, 1998Self-incompatibility allows plants to recognize and reject pollen from the same plant, thereby reducing inbreeding. Although in most cases self-incompatibility is controlled by a single genetic locus, recent results show that surprisingly complex signal transduction pathways and many players are involved in pollen recognition and rejection.
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Histological and molecular analysis of pollen–pistil interaction in clementine
Plant Cell Reports, 2009In contrast to model species, the self-incompatibility reaction in citrus has been poorly studied. It is assumed to be gametophytically determined and genetically controlled by the S-locus, which in other species encodes for glycoproteins (S-RNases) showing ribonuclease activity.
DISTEFANO, GAETANO +4 more
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Pollen-pistil interactions in nicotiana
2018The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. ; Title from title screen of research.pdf file (viewed on August 4, 2009) ; Vita. ; Thesis (Ph. D.
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Pollen-Pistil Interaction and Fertilization
2019Pollen-pistil interaction covers the sequential events from pollination until the pollen tubes enter the ovules. During this interaction the pistil screens the pollen grains. Pollen of other species are inhibited at the level of pollen germination or pollen tube growth in the style.
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Pollen-Pistil Interactions and Fertilization
2000In spite of the broad range in size, shape, and exine patterns displayed by pollen grains of flowering plants, mature pollen released from the anther face common problems in accomplishing their goal of delivering the sperm cells to the vicinity of the egg for fertilization.
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