Effect of Wool Powder on Violacein Formation by Chromobacterium Violaceum.
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چکیده
منابع مشابه
Genetic analysis of violacein biosynthesis by Chromobacterium violaceum.
Chromobacterium violaceum presents a distinctive phenotypic characteristic, the production of a deep violet pigment named violacein. Although the physiological function of this pigment is not well understood, the sequencing of the genome of this bacterium has given some insight into the mechanisms and control of violacein production. It was found that erythrose-4-phosphate (E4P), a precursor to...
متن کاملCyanide Formation by Chromobacterium Violaceum.
Michaels, Ruth (Columbia University, New York, N.Y.), and W. A. Corpe. Cyanide formation by Chromobacterium violaceum. J. Bacteriol. 89:106-112. 1965.-The formation of cyanide by a Chromobacterium violaceum strain was studied with growing cultures and with nonproliferating cells grown in complex and chemically defined media. Most of the cyanide was produced during the log-phase growth of the or...
متن کاملNegative Regulation of Violacein Biosynthesis in Chromobacterium violaceum
In Chromobacteium violaceum, the purple pigment violacein is under positive regulation by the N-acylhomoserine lactone CviI/R quorum sensing system and negative regulation by an uncharacterized putative repressor. In this study we report that the biosynthesis of violacein is negatively controlled by a novel repressor protein, VioS. The violacein operon is regulated negatively by VioS and positi...
متن کاملDenitrification by Chromobacterium violaceum.
One host (Rana catesbiana)-associated and two free-living mesophilic strains of bacteria with violet pigmentation and biochemical characteristics of Chromobacterium violaceum were isolated from freshwater habitats. Cells of each freshly isolated strain and of strain ATCC 12472 (the neotype strain) grew anaerobically with glucose as the sole carbon and energy source. The major fermentation produ...
متن کاملCytotoxicity and potential antiviral evaluation of violacein produced by Chromobacterium violaceum.
Natural products are an inexhaustible source of compounds with promising pharmacological activities including antiviral action. Violacein, the major pigment produced by Chromobacterium violaceum, has been shown to have antibiotic, antitumoral and anti-Trypanosoma cruzi activities. The goal of the present work was to evaluate the cytotoxicity of violacein and also its potential antiviral propert...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1997
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.53.10_453