Induced biochemical mutants to Azotobacter agilis.
نویسندگان
چکیده
منابع مشابه
Metabolic Studies of Azotobacter Agilis by the Use of a Mutant Deficient in Pyruvic Oxidase*
An account has been given elsewhere of the successful isolation of physiological x-ray mutants of Azotobacter agilis with genetic blocks in the substrate oxidation mechanisms (1). The present paper deals in greater detail with a mutant strain, designated A13, that was isolated as a variant unable to grow on glucose, and gives the methods used to characterize the particular deficiency responsibl...
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Since more MAIg than is necessary for chelation of substrates is required for maximum activity in in vitro CO. fixing reactions (1, 4, 6), we undertook studies to elucidate possible interactions of Mg with components of two systems that fix CO,. Johnson and Johnson (5) reported that one value of additional MIg was to protect the enzyme, inorganic pyrophosphatase. obtained from Azotobacter agili...
متن کاملCyst formation and poly-beta-hydroxybutyric acid accumulation in Azotobacter.
Stevenson, L. H. (Louisiana State University, Baton Rouge), and M. D. Socolofsky. Cyst formation and poly-beta-hydroxybutyric acid accumulation in Azotobacter. J. Bacteriol. 91:304-310. 1966.-The relationship between cyst formation and the accumulation of poly-beta-hydroxybutyric acid (PHB) in Azotobacter vinelandii (A. agilis) was investigated. After various periods of growth, the cells were h...
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Induced mutagenesis causes an increase variation of some products with limited genetic resources. In this study, the antioxidant enzymes activity, biochemical properties and glycoside content of Stevia were assessed by EMS (chemical mutagen) based on two experiments as factorial with completely randomized design with three replications. The results of the first experiment showed that some prope...
متن کاملAlteration of glucose transport and diauxic growth in 5-thio-D-glucose-resistant mutants of Azotobacter vinelandii.
Spontaneous mutants of Azotobacter vinelandii defective for glucose utilization were selected as resistant to 5-thio-D-glucose. Mutant strains AM2, AM38, and AM39 exhibited longer generation times than the wild type when grown on glucose. Mutant strain AM2 also exhibited an altered Km and Vmax for glucose uptake. During acetate-glucose diauxie, glucose utilization in the 5-thio-D-glucose-resist...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 56 5 شماره
صفحات -
تاریخ انتشار 1948