Chitin biosynthesis during Blastocladiella zoospore germination: evidence that the hexosamine biosynthetic pathway is post-translationally activated during cell differentiation.
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Chitin biosynthesis during Blastocladiella zoospore germination: evidence that the hexosamine biosynthetic pathway is post-translationally activated during cell differentiation.
De novo construction of a chitinous cell wall accompanies Blastocladiella emersonii zoospore germination. At least an order of magnitude increase in total hexosamine occurs during germination. This increase is into polymer (chitin) and occurs on schedule in the presence of cycloheximide. Uridine-5'-diphospho-N-acetylglucosamine (UDPGlcNAc), both the end product of hexosamine biosynthesis and a ...
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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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...
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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...
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27 There is increasing evidence that endoplasmic reticulum (ER) stress contributes to the 28 development atherosclerosis in diabetes mellitus. The purpose of this study was to determine the effects 29 of increased hexosamine biosynthesis pathway (HBP) flux on ER stress levels and the complications of 30 ER stress associated with diabetes and atherosclerosis in hepatic cells. Glutamine:fructose-...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1976
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.73.2.534