Gametogenesis in Chlamydomonas eugametos
نویسندگان
چکیده
منابع مشابه
Cellular Interactions during the Mating Process in Chlamydomonas eugametos.
A method to determine the mating competence of Chlamydomonas eugametos was developed. The contribution of each mating type in the pair formation was investigated using asymmetric gamete mixtures. It was established that pair formation is not mediated by a pheromonal attraction mechanism between partner gametes, but depends on collision chances. On the other hand, it was demonstrated that during...
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Palmelloids induced in the unicellular green alga Chlamydomonas eugametos by chloroplatinic acid treatment have been studied electron microscopically. Thin-sectioned specimens revealed the multilayer nature of the cell walls after second division within the palmelloid. Although synchrony in cell division is lost, to a certain degree, within the palmelloid, the cells themselves appeared normal, ...
متن کاملPhototactic responses of Chlamydomonas eugametos gametes before and after fusion.
The phototactic behavior of Chlamydomonas eugametos gametes and vis-à-vis pairs was quantitated using a fully automated, computer-controlled microvideo image analysis system. Two different mt- (mating type minus) and one mt+ (mating type plus) strain, together with the two combinations of pairs were studied. One mt- strain of dark-adapted gametes was non-phototactic while the others were positi...
متن کاملCell cycle events in the green alga Chlamydomonas eugametos and their control by environmental factors
A procedure for routine synchronization of large amounts of the unicellular green alga Chlamydomonas eugametos in liquid culture by alternating light and dark periods is described. The synchronized populations were grown at various light intensities and temperatures. The effect of these variables on the lengths of parts of the cell cycle and the number of daughter cells per cell division was fo...
متن کاملLight Affects Flagellar Agglutinability in Chlamydomonas eugametos by Modification of the Agglutinin Molecules.
The effect of light on the sexual competence of a light-sensitive mating type minus strain (mt(-)) of Chlamydomonas eugametos obtained by crossing a light-sensitive mating type plus strain (mt(+)) with a light-insensitive mt(-) strain is described. As previously demonstrated for the mt(+) parent, this study of one of the mt(-) offspring shows that (a) a light-sensitive mechanism affects flagell...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1973
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.51.6.1046