Results 181 to 190 of about 6,476 (220)

Self-incompatibility and other pollen-pistil interactions

Current Opinion in Plant Biology, 1998
Self-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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Pollen-pistil interactions in nicotiana

2018
The 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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Molecular Recognition and Response in Pollen and Pistil Interactions

Annual Review of Cell and Developmental Biology, 2000
▪ Abstract  Many bisexual flowering plants possess a reproductive strategy called self-incompatibility (SI) that enables the female tissue (the pistil) to reject self but accept non-self pollen for fertilization. Three different SI mechanisms are discussed, each controlled by two separate, highly polymorphic genes at the S-locus.
A G, McCubbin, T, Kao
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Histological and molecular analysis of pollen–pistil interaction in clementine

Plant Cell Reports, 2009
In 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, CARUSO M, LA MALFA, Stefano Giovanni, GENTILE, Alessandra, TRIBULATO E.   +4 more
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The role of peroxidases in pistil-pollen interactions

Theoretical and Applied Genetics, 1984
The majority of pistil peroxidases are involved in processes related to growth, development and senescence. Only the tissue specific peroxidases in the transmitting tissue of the style may play a direct role in the regulation of pollen tube growth. The pollen peroxidases may function mainly in growth regulation and tube wall formation and play a role ...
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Pollen-Pistil Interaction and Fertilization

2019
Pollen-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

2000
In 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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Unlocking a ‘lock–key’ mechanism governing pollen–pistil interactions

Trends in Plant Science
Pollen-pistil interactions ensure genetic diversity and shape the reproductive success of plants. Lan et al. recently revealed that the interaction among various receptor-like kinases, cell-wall proteins, and stigmatic RALF peptides (sRALFs) or pollen RALF peptides (pRALFs) on the stigma surface govern the penetration of pollen tubes in members of the ...
Ravi Gupta, Durgesh Kumar Tripathi, Vijay Pratap Singh   +2 more
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Functional genomics of pollen tube–pistil interactions in Arabidopsis

Biochemical Society Transactions, 2010
The pollen tube represents an attractive model system for functional genomic analysis of the cell–cell interactions that mediate guided cellular growth. The pollen tube extends through pistil tissues and responds to guidance cues that direct the tube towards an ovule, where it releases sperm for fertilization.
Ravishankar, Palanivelu, Mark A, Johnson
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Pollen pistil interactions and interspecific incompatibility in Pennisetum

Euphytica, 1991
The causes of low crossability between Pennisetum species were studied. In the compatible cross P. typhoides x P. violaceum, the pollen tube growth was normal and there was good seed set. In P. typhoides x P. cenchroides, pollen tubes reached the ovary but no seed set was obtained indicating ovarian incompatibility. The stylar incompatibility was found
Vindhya Mohindra, J. L. Minocha
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