Indecisive
发表于 2025-3-27 00:51:32
The Cytoskeleton of Pollen Grains and Pollen Tubes,sti, 1992). Other cytoskeletal proteins, besides actin and tubulin, that have been found in pollen are myosin (Tang et al., 1989a; Heslop-Harrison and Heslop-Harrison, 1989a and b), kinesin (Moscatelli et al., 1988; Cai et al., 1992; Tiezzi et al., 1992) and profilin (Valenta et al., 1991).
调色板
发表于 2025-3-27 01:11:31
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芭蕾舞女演员
发表于 2025-3-27 05:42:01
Book 1992se in research on reproductive structures of higher plants. Presented here is a wide information of different aspects of micro- and macrosporogenesis, pollen-stigma interaction and recognition, pollen tube growth, cytoskeleton, in vitro and in vivo gamete fusion, and incompatibility. The most advanc
金盘是高原
发表于 2025-3-27 11:11:22
Effects of Gametophytic Selection on the Genetic Structure of Populations,her plants the issue is not so evident, but it is now well established that the conventional assumption is not justified: when the effects of selection in natural or cultivated plant populations are studied, not only sporophytic, but also gametophytic selection has to be taken into account.
vitreous-humor
发表于 2025-3-27 16:10:52
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Dictation
发表于 2025-3-27 20:16:16
Gene Expression During Microsporogenesis,s 1922. While it was appreciated that doubled haploids would provide the most effective route for the production of homozygous lines for plant breeding, this approach could not be applied since haploid lines were not available for the majority of crop plants. In any event, for such a strategy to be
Ordnance
发表于 2025-3-27 23:03:25
Gene Expression During Pollen Development,rom single plants, and thus offers opportunities for selection among male gametophytes. Due to the haploid state and the large population size, male gametophytic selection (MGS) can be extremely efficient and represent an important factor in the high evolution rate of Angiosperms. Moreover, if used
磨碎
发表于 2025-3-28 03:47:57
Cytological Techniques to Assess Pollen Quality,pollen - individual grains or members of a population - to deliver gametes. Pollen quality is normally measured 1) by scoring seed set in plants fertilized with a particular pollen sample, 2) by cytochemical staining of the grains, or 3) by looking at germination of the pollen . or on styles. Table
elucidate
发表于 2025-3-28 09:06:23
Megasporogenesis and Megagametogenesis,ction of the sexual reproduction of angiosperms. After a meiotic division and cell isolation the development from the unicellular stage to the multicellular embryo sac represents the life cycle of the haploid plant. This life cycle from megaspore to megagametophyte with the megagamete takes place in
Commission
发表于 2025-3-28 13:51:39
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