Copper and dyes enhance laccase production in γ-proteobacterium JB

Laccase production in gamma-proteobacterium JB was enhanced 13-fold by adding 0.1 mM CuSO(4) 24 h after the onset of growth. Ethidium bromide (2.5 microM), Malachite Green, Phenol Red and Thymol Blue (10 microM each) enhanced laccase production 17-, 19-, 4- and 2-fold, respectively. Among the fourte...

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Published inBiotechnology letters Vol. 26; no. 13; pp. 1047 - 1050
Main Authors MALHOTRA, Kanam, SHARMA, Prince, CAPALASH, Neena
Format Journal Article
LanguageEnglish
Published Dordrecht Springer 01.07.2004
Subjects
Biological and medical sciences
Biotechnology
Coloring Agents - pharmacology
Copper Sulfate - pharmacology
Fundamental and applied biological sciences. Psychology
Gammaproteobacteria - drug effects
Gammaproteobacteria - enzymology
Laccase - biosynthesis
Proteobacteria
Dyes
Enzyme
γ-proteobacterium
Production
polyphenol oxidase
Oxidoreductases
Copper
Laccase
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Summary:Laccase production in gamma-proteobacterium JB was enhanced 13-fold by adding 0.1 mM CuSO(4) 24 h after the onset of growth. Ethidium bromide (2.5 microM), Malachite Green, Phenol Red and Thymol Blue (10 microM each) enhanced laccase production 17-, 19-, 4- and 2-fold, respectively. Among the fourteen aromatic/organic compounds tried, p-aminobenzoic acid and an industrial effluent, from where the organism was isolated, showed 1.2- and 1.26-fold increases in production.
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ISSN:0141-5492
1573-6776
DOI:10.1023/B:BILE.0000032959.10370.18