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Performance analysis of Pseudomonas sp. strain SA3 in naphthalene degradation using phytotoxicity and microcosm studies

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Abstract

The present study is aimed to develop a microbial system for efficient naphthalene bioremediation. A phytotoxicity study was carried out to check the naphthalene detoxification efficiency of Pseudomonas sp. strain SA3 in mung bean (Vigna radiata). For this, administration of the degraded product (supernatant) of 500 mg L−1 naphthalene by Pseudomonas sp. strain SA3 was studied on V. radiata till 168 h. The growth parameters of mung bean seedlings exposed to treated naphthalene solution were statistically similar to distilled water but a twofold decrease when exposed to untreated naphthalene solution. Further, through the soil microcosm study, the naphthalene degradation by pure colonies of Pseudomonas sp. strain SA3 was 6.8% higher as compared to when the natural microflora was mixed with Pseudomonas sp. strain SA3. Further naphthalene degradation by a microcosm model revealed that with an increased concentration of glucose, the carbon dioxide trap rate decreases.

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Experimental data could be provided on appropriate request.

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Acknowledgements

SRT is grateful to University Grant Commission-National Fellowship for Higher Education (UGC-NHFE). SR and MM are thankful to Council of Scientific and Industrial Research (CSIR). Further, SRT, SR and MM would like to acknowledge the Academy of Scientific and Innovative Research (AcSIR) for Ph.D. enrolment.

Funding

This study was funded by UGC-NHFE [F1-17.1/2016-17/NFST-2015-17-ST-JHA-2164] and CSIR-HRDG [31/28(223)2 K-17/EMR-I].

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Conceptualization, Methodology, Software, Formal analysis, Validation, Visualization, Investigation, Data curation, Writing—original draft, Writing—review & editing: SRT. Investigation, Software, Data curation, Formal analysis, Writing—review & editing: SR. Investigation, Data curation Writing—review & editing: MM. Resources, Supervision, Writing—review & editing: SM.

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Correspondence to Sandhya Mishra.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Tirkey, S.R., Ram, S., Mitra, M. et al. Performance analysis of Pseudomonas sp. strain SA3 in naphthalene degradation using phytotoxicity and microcosm studies. Biodegradation 33, 169–180 (2022). https://doi.org/10.1007/s10532-022-09972-3

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  • DOI: https://doi.org/10.1007/s10532-022-09972-3

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