Biotransformation of methyl parathion by marine-derived fungi isolated from ascidian Didemnum ligulum

Biotransformation of methyl parathion by marine-derived fungi isolated from ascidian Didemnum ligulum

Author Rodrigues, Gisele N. Google Scholar
Alvarenga, Natalia Google Scholar
Vacondio, Bruna Google Scholar
de Vasconcellos, Suzan P. Autor UNIFESP Google Scholar
Passarini, Michel R. Z. Autor UNIFESP Google Scholar
Seleghim, Mirna H. R. Google Scholar
Porto, Andre L. M. Google Scholar
Abstract This paper describes the biotransformation of methyl parathion by marine-derived fungi isolated from ascidian Didemnum ligulum. Seventeen strains were screened by their growth in solid culture medium containing different concentrations of methyl parathion (120 mg L-1, 240 mg L-1 and 360 mg L-1). Three strains with potential to degrade methyl parathion were identified as Penicillium citrinum (DL4M3), P. citrinum (DL9M3) and Fusarium proliferatum (DL11A). When selected for experiments in liquid medium to quantify the biodegradation of methyl parathion, they were able to completely degrade it in 20 d. However, when comparing the hydrolysis of methyl parathion catalyzed by fungi with the chemical hydrolysis (abiotic control), there was no significant differences in the disappearance of the pesticide in both reactions. On the other hand, F. proliferatum DL11A strain was able to reduce the concentration of p-nitrophenol, the main metabolite of methyl parathion hydrolysis, promoting 90% of biodegradation/bioconjugation of p-nitrophenol in 30 d. (C) 2016 Elsevier Ltd. All rights reserved.
Keywords Organophosphate pesticide
Biodegradation
Marine fungi
p-Nitrophenol
xmlui.dri2xhtml.METS-1.0.item-coverage Amsterdam
Language English
Date 2016
Published in Biocatalysis And Agricultural Biotechnology. Amsterdam, v. 7, p. 24-30, 2016.
ISSN 1878-8181 (Sherpa/Romeo, impact factor)
Publisher Elsevier Science Bv
Extent 24-30
Origin http://dx.doi.org/10.1016/j.bcab.2016.05.001
Access rights Closed access
Type Article
Web of Science ID WOS:000388586500004
URI https://repositorio.unifesp.br/handle/11600/57574

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