Biotransformation of dieldrin by the marine fungus Penicillium miczynskii CBMAI 930

Autor(es)

Birolli, Willian G. ^[1] ; Yamamoto, Katia Y. ^[1] ; de oliveira, Julieta R. ^{[1, 2]} ; Nitschke, Marcia ^[1] ; Seleghim, Mirna H. R. ^[3] ; Porto, Andre L. M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim Sao Carlos, Lab Quim Organ & Biocatalise, BR-13563120 Sao Carlos, SP - Brazil

^[2] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50740546 Recife, PE - Brazil

^[3] Univ Fed Sao Carlos, Dept Ecol & Biol Evolut, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY; v. 4, n. 1, p. 39-43, JAN 2015.
• Citações Web of Science: 6

Resumo

The marine derived fungi Aspergillus sydowii CBMAI 935, A. syclowii CBMAI 933, Penicillium miczynskii CBMAI 930 and Trichodernia sp. CBMAI 932 isolated from the marine sponges Geodia corticostylifera and Chelonaplysylla erecta were cultivated in the presence of the pesticide dieldrin at different concentrations (25, 50 and 75 mg L-1). All fungal strains were able to grow in the presence of this pesticide; however, P. iniczyrtskii showed the highest tolerance to clieldrin arid was selected for further experiments. P miczynskii CBMAI 930 catalyzed the biotransforrnation of clieldrin (50 mg L-1) with high conversion rates (90%) after 14 days in liquid medium. Kinetic studies showed that 70% of clieldrin was biotransformecl after 4 days of incubation. A method validation was performed using five samples in which the fungi P. miczynskii CBMAI 930 was cultivated showing a recovery of 86% and standard deviation of 3%. This is the first report of clieldrin biotransformation by the marine fungi P miczynskii CBMAI 930. Results suggest that P. traczynskii is a prospective strain for bioremediation of dieldrin. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/19934-0 - Biodegradação de pesticidas por micro-organismos (fungos e bactérias)
• Beneficiário: Andre Luiz Meleiro Porto
• Modalidade de apoio: Auxílio à Pesquisa - Regular