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Staphylococcus Sp. Strain MY 83295F: A Potential P,P’-DDT-Degrading Bacterium Isolated from Pesticide Contaminated Soil

Staphylococcus Sp. Strain MY 83295F: A Potential P,P’-DDT-Degrading Bacterium Isolated from... AbstractAlthough DDT has been on the ban list by the Stockholm Convention for its environmental degradation, still a wave of emerging shreds of evidence has proved its circulation in developing countries. The intensity of environmental degradation and human health problems posed by residual DDT and its metabolites become of serious ecological concern, warranting a search for novel strains with a capacity to biodegrade these environmental contaminants. A new strain of the genus Staphylococcus was isolated from pesticide-contaminated soil. The 16S rRNA and phylogenetic analyses were used to identify the isolate and the 16S rRNA partial gene sequence was deposited in the NCBI GenBank as Staphylococcus sp. strain MY 83295F. The isolate was capable of growing in up to 60 mg L−1 of p,p’-DDT as the sole carbon source at an optimum pH of 6.5 and optimum temperature of 30°C within 120 h. Zn2+ has demonstrated a stimulatory effect on the growth of the strain in p,p’-DDT containing medium. However, Fe, Cu, Pb, Hg, Ag, and Cr ions showed inhibitory effects on the strain’s growth in the medium. The strain could be a handy tool for the bio-cleansing of residual p,p’-DDT in the contaminated environment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Biologica Marisiensis de Gruyter

Staphylococcus Sp. Strain MY 83295F: A Potential P,P’-DDT-Degrading Bacterium Isolated from Pesticide Contaminated Soil

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Publisher
de Gruyter
Copyright
© 2020 Ya’u Murtala et al., published by Sciendo
eISSN
2668-5124
DOI
10.2478/abmj-2020-0008
Publisher site
See Article on Publisher Site

Abstract

AbstractAlthough DDT has been on the ban list by the Stockholm Convention for its environmental degradation, still a wave of emerging shreds of evidence has proved its circulation in developing countries. The intensity of environmental degradation and human health problems posed by residual DDT and its metabolites become of serious ecological concern, warranting a search for novel strains with a capacity to biodegrade these environmental contaminants. A new strain of the genus Staphylococcus was isolated from pesticide-contaminated soil. The 16S rRNA and phylogenetic analyses were used to identify the isolate and the 16S rRNA partial gene sequence was deposited in the NCBI GenBank as Staphylococcus sp. strain MY 83295F. The isolate was capable of growing in up to 60 mg L−1 of p,p’-DDT as the sole carbon source at an optimum pH of 6.5 and optimum temperature of 30°C within 120 h. Zn2+ has demonstrated a stimulatory effect on the growth of the strain in p,p’-DDT containing medium. However, Fe, Cu, Pb, Hg, Ag, and Cr ions showed inhibitory effects on the strain’s growth in the medium. The strain could be a handy tool for the bio-cleansing of residual p,p’-DDT in the contaminated environment.

Journal

Acta Biologica Marisiensisde Gruyter

Published: Dec 1, 2020

Keywords: DDT biodegradation; Staphylococcus; 16S rRNA; pesticide contaminant; heavy metals

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