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Braz. j. microbiol ; 40(1): 26-30, Jan.-Mar. 2009. ilus, tab
Article in English | LILACS | ID: lil-513111

ABSTRACT

Various genotoxic textile dyes, xenobiotics, substrates (10 µM) and agrochemicals (100 µg/ml) were tested for enhancement of alkalophilic laccase activity inã-proteobacterium JB. Neutral Red, Indigo Carmine, Naphthol Base Bordears and Sulphast Ruby dyes increased the activity by 3.7, 2.7, 2.6 and 2.3 fold respectively. Xenobiotics/substrates like p-toluidine, 8-hydroxyquinoline and anthracine increased it by 3.4, 2.8 and 2.3 fold respectively. Atrazine and trycyclozole pesticides enhanced the activityby 1.95 and 1.5 fold respectively.


Vários corantes têxteis genotóxicos, xenobióticos, substratos (10 mM) e agroquímicos (100 mM/mL) foram testados quanto ao aumento da atividade de lacase em ã-Proteobacterium JB. Os corantes Neutral Red, Indigo Carmine, Naphtol Base Bordears e Sulphast Ruby aumentaram a atividade em 3,7, 2,7, 2,6 e 2,3 vezes, respectivamente. Xenobióticos/substratos como p-toluidina, 8-hidroxiquinolina e antracina aumentaram a atividade em 3,4, 2,8 e 2,3 vezes, respectivamente. Atrazina e pesticidas triciclozol aumentaram a atividade em 1,95 e 1,5 vezes, respectivamente.


Subject(s)
Coloring Agents/analysis , Laccase/analysis , Mutagens/analysis , Proteobacteria/enzymology , Xenobiotics/analysis , Enzyme Activation , Methods , Methods
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