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Implications of Benzoate Induced Alterations in Cell Morphology and Physiology in <em>Pseudomonas aeruginosa</em> TMR2.13 for Potential Application in Bioremediation and Monitoring Approaches
ISSN: 2155-6199
Journal of Bioremediation & Biodegradation

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Implications of Benzoate Induced Alterations in Cell Morphology and Physiology in Pseudomonas aeruginosa TMR2.13 for Potential Application in Bioremediation and Monitoring Approaches

Trelita de Sousa and Saroj Bhosle*
Department of Microbiology, Goa University, Taleigao Plateau, Goa, India
Corresponding Author : Prof. Saroj Bhosle
Department of Microbiology
Goa University, Taleigao Plateau, Goa, India
Tel: +91-0832-6519080
Fax: +91-0832-2452889
E-mail: [email protected]
Received February 25, 2012; Accepted March 31, 2012; Published April 02, 2012
Citation:de Sousa T, Bhosle S (2012) Implications of Benzoate Induced Alterations in Cell Morphology and Physiology in Pseudomonas aeruginosa TMR2.13 for Potential Application in Bioremediation and Monitoring Approaches. J Bioremed Biodegrad S1:008 doi:10.4172/2155-6199.S1-008
Copyright: © 2012 de Sousa T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The aromatic hydrocarbon sodium benzoate induced significant alterations in cell morphology with parallel changes in physiological processes like denitrification and pigment formation during growth of a bacterial strain TMR2.13 in denitrification medium. The isolate obtained from a low nutrient level ecosystem (coastal sand dunes) was identified as Pseudomonas aeruginosa. The culture was capable of growing in up to 3% benzoate as the sole carbon source. The culture, a strong denitrifier, showed changes in nitrite levels in response to benzoate. Presence of benzoate induced a 50% reduction in intermediate nitrite accumulation under well aerated conditions. High benzoate levels caused a delay in growth rate, nitrate reduction activity and prominent decrease in transitional nitrite levels from 1528 μM (without benzoate) to 508 μM (with 1% benzoate). Further, the intensity of pigment production was also enhanced in presence of sodium benzoate indicated by a significant increase in absorbance at 380 nm (pyoverdin peak) and 680 nm (pyocyanin peak). The impact of benzoate was greater on pyoverdin production than on pyocyanin. The alterations depicted by TMR2.13 at high benzoate concentrations in nitrite and pigment levels can be projected with potential application in bioremediation and monitoring studies.

Trelita de Sousa and Saroj Bhosle*
Department of Microbiology, Goa University, Taleigao Plateau, Goa, India
Corresponding Author : Prof. Saroj Bhosle
Department of Microbiology
Goa University, Taleigao Plateau, Goa, India
Tel: +91-0832-6519080
Fax: +91-0832-2452889
E-mail: [email protected]
Received February 25, 2012; Accepted March 31, 2012; Published April 02, 2012
Citation:de Sousa T, Bhosle S (2012) Implications of Benzoate Induced Alterations in Cell Morphology and Physiology in Pseudomonas aeruginosa TMR2.13 for Potential Application in Bioremediation and Monitoring Approaches. J Bioremed Biodegrad S1:008 doi:10.4172/2155-6199.S1-008
Copyright: © 2012 de Sousa T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Related article at
DownloadPubmed DownloadScholar Google
Trelita de Sousa and Saroj Bhosle*
Department of Microbiology, Goa University, Taleigao Plateau, Goa, India
Corresponding Author : Prof. Saroj Bhosle
Department of Microbiology
Goa University, Taleigao Plateau, Goa, India
Tel: +91-0832-6519080
Fax: +91-0832-2452889
E-mail: [email protected]
Received February 25, 2012; Accepted March 31, 2012; Published April 02, 2012
Citation:de Sousa T, Bhosle S (2012) Implications of Benzoate Induced Alterations in Cell Morphology and Physiology in Pseudomonas aeruginosa TMR2.13 for Potential Application in Bioremediation and Monitoring Approaches. J Bioremed Biodegrad S1:008 doi:10.4172/2155-6199.S1-008
Copyright: © 2012 de Sousa T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Related article at
DownloadPubmed DownloadScholar Google
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