<abstract xmlns="http://www.w3.org/1999/xhtml">

Although 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 <italic>Staphylococcus</italic> 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 <italic>Staphylococcus</italic> sp. strain MY 83295F. The isolate was capable of growing in up to 60 mg L−1 of <italic>p,p’</italic>-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 <italic>p,p’</italic>-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 <italic>p,p’</italic>-DDT in the contaminated environment.
</abstract>

Although 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.

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

Department of Biochemistry, Faculty of Basic Medical Sciences

Department of Biochemistry, Faculty of Biological Sciences

Acta Biologica Marisiensis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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

Although 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...

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

Publié en ligne: 05 janv. 2021

Pages: 22 - 35

Reçu: 26 août 2020

Accepté: 05 nov. 2020

DOI: https://doi.org/10.2478/abmj-2020-0008

Mots clés
DDT biodegradation, 16S rRNA, pesticide contaminant, heavy metals

© 2020 Ya’u Murtala et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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

Publié en ligne: 05 janv. 2021

Pages: 22 - 35

Reçu: 26 août 2020

Accepté: 05 nov. 2020

DOI: https://doi.org/10.2478/abmj-2020-0008

Mots clésDDT biodegradation, 16S rRNA, pesticide contaminant, heavy metals

© 2020 Ya’u Murtala et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
DDT biodegradation, 16S rRNA, pesticide contaminant, heavy metals