Abstract
WHEN pollen and maternal tissue come into contact, the rate and sequence of enzyme activation control the growth of pollen and the nature of the compatibility reaction. Intraspecific pollination in certain plants results in an incompatibility reaction in the maternal tissue. In Petunia, one of the few species examined in detail, pollen growth is characterized by formation of a new protein fraction in the style and inhibition of pollen tube growth1. It has been postulated that this new protein forms in response to an inducer: a chemical moiety, such as a protein, which diffuses from the pollen2.
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STANLEY, R., LINSKENS, H. Enzyme Activation in Germinating Petunia Pollen. Nature 203, 542–544 (1964). https://doi.org/10.1038/203542a0
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DOI: https://doi.org/10.1038/203542a0
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