Population Biology of Gametophytes in Homosporous Polypodiophyta |
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Authors: | Shorina N. I. |
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Affiliation: | (1) Moscow State Pedagogical University, ul. Kibal'chicha 6, korp. 5, Moscow, 129278, Russia |
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Abstract: | Modern data on the diversity of morphology and morphogenesis of gametophytes in homosporous ferns, their vegetative reproduction, and the existence of their colonies growing separately, independently of sporophytes, are reviewed. The ontogenetic states of gametophytes are identified and characterized. The problem of gametophyte chemical interactions mediated by antheridiogen, an exohormone, is discussed. These intrapopulation interactions determine the polyvariant character of gametophyte ontogeny and the complex age and sex structure of their colonies. |
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Keywords: | gametophytes populations antheridiogen ontogenetic states of plants age and sex structure of populations |
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