Ferrisiderophore reductase activity in Bacillus megaterium
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منابع مشابه
Ferrisiderophore reductase activity in Agrobacterium tumefaciens.
Reduction of the iron in ferriagrobactin by the cytoplasmic fraction of Agrobacterium tumefaciens strictly required NaDH as the reductant. Addition of flavin mononucleotide and anaerobic conditions were necessary for the reaction; when added with flavin mononucleotide, magnesium was stimulatory. This ferrisiderophore reductase activity may be a part of the iron assimilation process in A. tumefa...
متن کاملHeme inhibition of ferrisiderophore reductase in Bacillus subtilis.
Heme was a noncompetitive inhibitor (apparent K(i) and K'(i) = 0.043 mM) of a ferrisiderophore reductase purified from Bacillus subtilis; protoporphyrin IX had no effect. The cellular level of heme may partly regulate the function of this reductase to yield a controlled flow of iron into metabolism.
متن کاملFerrisiderophore reductase activity associated with an aromatic biosynthetic enzyme complex in Bacillus subtilis.
The cytoplasmic fractions obtained from Bacillus subtilis strains W168 and WB2802 catalyzed reductive release of iron from the ferric chelate of 2,3-dihydroxybenzoic acid (ferri-DHB), the ferrisiderophore produced by B. subtilis. Ferrisiderophore reductase activity may insert iron into metabolism. This activity required a reductant (reduced nicotinamide adenine dinucleotide phosphate was prefer...
متن کاملPlasmolysis in Bacillus Megaterium.
Weibull, Claes (Central Bacteriological Laboratory of Stockholm City, Stockholm, Sweden). Plasmolysis in Bacillus megaterium. J. Bacteriol. 89:1151-1154. 1965.-Sucrose solutions stronger than 1 m caused plasmolysis in Bacillus megaterium strain M, whereas concentrated NaCl and KNO(3) solutions were ineffective. In plasmolyzed cells, mesosome bodies were found in pockets between the cytoplasmic ...
متن کاملCytochemical Localization of Dehydrogenase and Diaphorase Activity in Bacillus Megaterium
Received for publication, April 9, 1960. higher organisms. The bacterial cytoplasm consists of granules, about 20 m/~ in diameter, which contain numerous enzymes of the electron transport system of the cell (1) and which were shown to carry out oxidative phosphorylation (2). Attempts of Mudd et al. (3) and others to visualize mitochondria-like bodies by means of intravital reduction of tetrazol...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1980
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.141.2.715-721.1980