Evidence that Blastocladiella emersonii zoospore maintenance factor is a sulfhydryl group-containing cyclic ribotide.
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چکیده
منابع مشابه
Cyclic nucleotide metabolism coupled to cytodifferentiation of Blastocladiella emersonii.
Cyclic GMP and cyclic AMP levels during growth and differentiation of B. emersonii were measured by use of chemical, biochemical, and immunologic assays. Of particular interest was the finding that net synthesis of cyclic GMP occurred during a single stage of its life cycle, sporulation, when intracellular levels increased 50- to 100-fold in a process requiring protein and RNA synthesis.
متن کاملUltrastructural changes during sporangium formation and zoospore differentiation in Blastocladiella Emersonii.
Samples from synchronized cultures of Rlastorlacliella e m e ~ s o n i i were examined by electron microscopy from t,he late log phase to the completioli of zoospore differentiation, Log-phase plants contain t,he usual cytoplasmic organelles but also have an unusual system of large tubules ca. 45 mp diam that ramify in organized bundles throughout the protoplast,. After induction, zoosporangium...
متن کاملZoospore germination in Blastocladiella emersonii. IV. Ion control over cell differentiation.
Zoospore germination in B. emersonii is accompanied by a series of abrupt, dramatic changes in cell structure. Membranes appear to be variously involved in many of these changes. Germination is subject to simple manipulations of the ionic environment: swimming zoospores can be maintained for long periods in the buffered CaCl2 solution into which they are initially released, whereas dilution int...
متن کاملZoospore germination in Blastocladiella emersonii. 3. Structural changes in relation to protein and RNA synthesis.
1. Zoospores germinate rapidly and semi-synchronously upon exposure to growth medium or an inorganic salts solution. Amino acid incorporation into protein is detected only after a characteristic lag period, the extent of which is a function of developmental, rather than absolute, time. 2. The ' turn-on' of amino acid incorporation occurs after several of the morphological events of germination ...
متن کاملChanges in the pattern of protein synthesis during zoospore germination in Blastocladiella emersonii.
Using two-dimensional gel electrophoresis, we analyzed the pattern of proteins synthesized during Blastocladiella emersonii zoospore germination in an inorganic solution, in both the presence and absence of actinomycin D. During the transition from zoospore to round cells (the first 25 min), essentially no qualitative differences were noticeable, indicating that the earliest stages of germinati...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1985
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)88823-8