Inhibition effect of ammonium-nitrogen on colistin production by Bacillus polymyxa.
نویسندگان
چکیده
منابع مشابه
Comparison of growth and pectolytic enzyme production by Bacillus polymyxa.
Nagel, Charles W. (University of California, Davis) and Reese H. Vaughn. Comparison of growth and pectolytic enzyme production by Bacillus polymyxa. J. Bacteriol. 83:1-5. 1962.-Studies were made of pectolytic enzyme production by Bacillus polymyxa during growth. It was found that elaboration of enzyme occurred during logarithmic growth and ceased when the stationary phase was reached. The speci...
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Heavy metals (HMs) are common components of landfill leachates and piggery wastewater, which correspond with possible applications of the anaerobic ammonium oxidation (anammox). For this reason, the study of the fate and effect of HMs on the anammox process is of utmost importance. In this work, the effect of several HMs on the specific anammox activity (SAA) was studied. For this purpose, the ...
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Bacteria were found that are capable of producing good yields of beta-amylase in unrefined media. The culture filtrates are free of alpha-amylase and isoamylase.
متن کاملMicrobial production of ammonium ion from nitrogen.
Genetic manipulation of nitrogenase and key glutamate-forming enzymes can provide mutants that excrete fixed N2 as NH4+. A derepressed N2 fxation mutant (SK-24) has been isolated , which excretes up to 20.2 mumol of fixed N2 as NH4+ per mg of cell protein in 24 hr at room temperature. Biochemical analysis shows that this mutant, which requires glutamate for growth, releases fixed N2 as NH4+ int...
متن کاملThe endospore of Bacillus polymyxa.
The endospore of Bacillus polymyxa was originally described by Meyer (1897) in a study of a bacillus which he designated Astasia asterospora. Meyer's drawings of the spore, showing ridges and the star shaped aspect, were reproduced by Knaysi (1951) over the name Bacillus asterosporus. It has not been generally recognized that this name is synonymous with B. polymyxa (Smith, et al., 1952). So th...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1984
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.48.2389