Production of phenol-oxidases and peroxidases by fungi isolated from irrigated rice

The aim of this work was to study the potential of fungus strains considered as prospective degraders for the herbicides quinclorac and propanil, for ligninolytic enzyme production. Eight fungal strains were grown in King's B liquid culture medium supplemented with 0.05% Remazol Brilliant Blue...

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Bibliographic Details
Published in:	Brazilian journal of microbiology Vol. 34; no. S1; pp. 53 - 55
Main Authors:	Silva, Célia Maria Maganhotto de Souza(Embrapa Meio Ambiente), Melo, Itamar Soares de(Embrapa Meio Ambiente), Vieira, Rosana Faria(Embrapa Meio Ambiente)
Format:	Journal Article
Language:	English
Published:	São Paulo Sociedade Brasileira de Microbiologia 01-11-2003 Springer Nature B.V
Subjects:	enzimas ligninolíticas lacases laccases ligninolytic enzymes MICROBIOLOGY Oryza sativa Remazol Brilliant Blue R Remazol Brilliant Blur R Triticum aestivum laccases lacases Remazol Brilliant Blur R Remazol Brilliant Blue R ligninolytic enzymes enzimas ligninolíticas
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Summary:	The aim of this work was to study the potential of fungus strains considered as prospective degraders for the herbicides quinclorac and propanil, for ligninolytic enzyme production. Eight fungal strains were grown in King's B liquid culture medium supplemented with 0.05% Remazol Brilliant Blue R (RBBR) and in liquid culture medium containing wheat bran as substrate. The enzymatic system assessment were: lignin peroxidase, manganese peroxidase and laccases. Results indicated differential patterns of ligninolytic enzyme production; the highest enzymatic activities were related to the production of lignin peroxidase. Among the strains, two (P3SA1F and P11SA2F) showed RBBR discoloration, suggesting the possibility of their application in bioremediation studies. A proposta deste trabalho foi estudar o potencial das linhagens fúngicas, consideradas potenciais degradadoras dos herbicidas quinclorac e propanil, para produção de enzimas ligninolíticas. Oito linhagens fúngicas foram cultivadas em meio de cultura líquido King's B suplementado com 0,05% de Remazol Brilliant Blue R (RBBR) e em meio de cultura líquido contendo farelo de trigo como substrato. Os sistemas enzimáticos avaliados foram: lignina peroxidase, manganês peroxidase e lacases. Os resultados demonstraram padrões diferenciados quanto à produção de enzimas ligninolíticas entre as linhagens, sendo que as maiores atividades enzimáticas estiveram relacionadas à produção de lignina peroxidase. Das oito linhagens, duas (P3SA1F e P11SA2F) apresentaram descoloração do RBBR, sugerindo a possibilidade de sua aplicabilicação em estudos de biorremediação
Bibliography:	10.1590/S1517-83822003000500018 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500018 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1517-8382 1678-4405 1678-4405
DOI:	10.1590/s1517-83822003000500018