منابع مشابه
Microinjection of phycomyces: selection of a strain for possible biological assay of photoreceptor pigment.
For a study of sensory transduction in Phycomnyces (3), information about the photoreceptor is important. Since action spectra for the light response of this organism (2, 4) tend to resemble some flavoprotein absorption spectra, it is plausible to try biochemical fractionation procedures to isolate flavoproteins from sporangiophores, using wild type and photomutant strains (G. Meissner and R. H...
متن کاملIntersexual partial diploids of phycomyces.
Sexual interaction between strains of opposite sex in many fungi of the order Mucorales modifies hyphal morphology and increases the carotene content. The progeny of crosses of Phycomyces blakesleeanus usually include a small proportion of anomalous segregants that show these signs of sexual stimulation without a partner. We have analyzed the genetic constitution of such segregants from crosses...
متن کاملCarotenogenic enzymes from phycomyces
Cell extracts from car mutants of Phycomyces blakesleeanus, which can convert '4C—labelled mevalonic acid into unsaturated carotenes, were treated with high ionic strength buffer and a range of detergents in an attempt to solubilise the carotenogenic enzymes. Phytoene synthetase was dislodged from the membrane with high molarity Tris-HC1 buffer, but the enzymes which convert phytoene into s—car...
متن کاملMeiosis in Phycomyces.
A four-factor cross between two strains of Phycomyces involving two auxotrophic, one color, and the mating type marker is described. Samples of 40 germspores from 84 individual fertile germsporangia were characterized. The results show: (i) The germspores of a germsporangium are derived from one meiosis in approximately 78% of the cases. (ii) The four markers are on separate chromosomes. They a...
متن کاملPhotoreactions in Phycomyces
Sporangiophores of Phycomyces in stage IV b have been stimulated by parallel light in test areas 0.2 mm. wide. The growth responses to large stimuli are very large, owing probably to light scattered within the specimen. For medium stimuli the sensitive zone coincides with the growth response zone obtained previously and excludes the region of maximum stretch. Sustained stimulations were used to...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1972
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.49.2.273