نتایج جستجو برای: paenibacillus polymyxa
تعداد نتایج: 2012 فیلتر نتایج به سال:
Ferredoxin from Bacillus polymyxa contains (per mole) four non-heme iron residues, four acid-labile sulfide residues, and four cysteine residues. Its molecular weight is approximately 8,800, and it has an oxidation-reduction potential (E(m)) of -390 mv. It is active as an electron carrier in several ferredoxin-linked enzyme systems.
سابقه و هدف؛ مواد لیگنو سلولزی در جیره نشخوارکنندگان از اهمیت بالایی برخوردار بوده و به دلیل مقرون به صرفه بودن و اثر بر عملکرد بهینه شکمبه و سلامت آن در جیره نشخوارکنندگان گنجانده میشوند. گرچه این ترکیبات توسط بسیاری از میکروبهای شکمبه قابل تخمیر میباشند، ولی وجود پروتئین، فیبر و سایر مواد مغذی با منشا خوراکی در مدفوع نشان میدهد که اکوسیستم شکمبه برای هضم خوراک خورده شده کارایی بالایی ندار...
Polymyxins are cationic lipopeptide antibiotics active against many species of Gram-negative bacteria. We sequenced the gene cluster for polymyxin biosynthesis from Paenibacillus polymyxa PKB1. The 40.8 kb gene cluster comprises three nonribosomal peptide synthetase-encoding genes and two ABC transporter-like genes. Disruption of a peptide synthetase gene abolished all antibiotic production, wh...
Effluents from monosodium glutamate manufacturing plants possess a high strength of COD (10,000--30,000 mg/l), ammonium (15,000--25,000 mg/l), sulphate (15,000--30,000 mg/l) and very low pH (< 2) (Yang et al., 2005). Effluents from sweat potato starch industry contains a high load of protein, pectin, and starchy materials with the COD of 10,000 35,000 mg/l (Mishra et al., 2004). Due to the low ...
endo-beta-(1,3)-(1,4)-glucanase. encoding a xylanase and an expression, and sequence analysis of genes Bacillus polymyxa: molecular cloning, Two beta-glycanase genes are clustered in
The occurrence, structure, and glycosylation of lipoteichoic acids were studied in 15 Bacillus strains, including Bacillus cereus (4 strains), Bacillus subtilis (5 strains), Bacillus licheniformis (1 strain), Bacillus polymyxa (2 strains), and Bacillus circulans (3 strains). Whereas in the cells of B. polymyxa and B. circulans neither lipoteichoic acid nor related amphipathic polymer could be d...
Grau, F. H. (University of Wisconsin, Madison), and P. W. Wilson. Hydrogenase and nitrogenase in cell-free extracts of Bacillus polymyxa. J. Bacteriol. 85:446-450. 1963.-Washed cells of Bacillus polymyxa strain Hino, treated with lysozyme, yield cell-free extracts that rapidly evolve hydrogen from reduced methyl viologen, formate, and pyruvate. Hydrogenase is particulate, 86% being sedimented a...
A plasmid transformation system was developed for Bacillus polymyxa ATCC 12321 and derivatives of this strain. The method utilizes a penicillin-treated-cell technique to facilitate uptake of the plasmid DNA. Low-frequency transformation (10(-6) per recipient cell) of plasmids pC194, pBD64, and pBC16 was accomplished with this method. Selection for the transformants was accomplished on both hype...
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