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Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils

Contamination of agricultural soil with heavy metals has become a serious concern worldwide. In the present study, Cr(6+) resistant plant growth promoting Pseudomonas sp. (strain CPSB21) was isolated from the tannery effluent contaminated agricultural soils and evaluated for the plant growth promoti...

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Autores principales: Gupta, Pratishtha, Rani, Rupa, Chandra, Avantika, Kumar, Vipin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5861048/
https://www.ncbi.nlm.nih.gov/pubmed/29559691
http://dx.doi.org/10.1038/s41598-018-23322-5
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author Gupta, Pratishtha
Rani, Rupa
Chandra, Avantika
Kumar, Vipin
author_facet Gupta, Pratishtha
Rani, Rupa
Chandra, Avantika
Kumar, Vipin
author_sort Gupta, Pratishtha
collection PubMed
description Contamination of agricultural soil with heavy metals has become a serious concern worldwide. In the present study, Cr(6+) resistant plant growth promoting Pseudomonas sp. (strain CPSB21) was isolated from the tannery effluent contaminated agricultural soils and evaluated for the plant growth promoting activities, oxidative stress tolerance, and Cr(6+) bioremediation. Assessment of different plant growth promotion traits, such as phosphate solubilization, indole-3-acetic acid production, siderophores, ammonia and hydrogen cyanide production, revealed that the strain CPSB21 served as an efficient plant growth promoter under laboratory conditions. A pot experiment was performed using sunflower (Helianthus annuus L.) and tomato (Solanum lycopersicum L.) as a test crop. Cr(6+) toxicity reduced plant growth, pigment content, N and P uptake, and Fe accumulation. However, inoculation of strain CPSB21 alleviated the Cr(6+) toxicity and enhanced the plant growth parameters and nutrient uptake. Moreover, Cr toxicity had varied response on oxidative stress tolerance at graded Cr(6+) concentration on both plants. An increase in superoxide dismutase (SOD) and catalase (CAT) activity and reduction in malonialdehyde (MDA) was observed on inoculation of strain CPSB21. Additionally, inoculation of CPSB21 enhanced the uptake of Cr(6+) in sunflower plant, while no substantial enhancement was observed on inoculation in tomato plant.
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spelling pubmed-58610482018-03-26 Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils Gupta, Pratishtha Rani, Rupa Chandra, Avantika Kumar, Vipin Sci Rep Article Contamination of agricultural soil with heavy metals has become a serious concern worldwide. In the present study, Cr(6+) resistant plant growth promoting Pseudomonas sp. (strain CPSB21) was isolated from the tannery effluent contaminated agricultural soils and evaluated for the plant growth promoting activities, oxidative stress tolerance, and Cr(6+) bioremediation. Assessment of different plant growth promotion traits, such as phosphate solubilization, indole-3-acetic acid production, siderophores, ammonia and hydrogen cyanide production, revealed that the strain CPSB21 served as an efficient plant growth promoter under laboratory conditions. A pot experiment was performed using sunflower (Helianthus annuus L.) and tomato (Solanum lycopersicum L.) as a test crop. Cr(6+) toxicity reduced plant growth, pigment content, N and P uptake, and Fe accumulation. However, inoculation of strain CPSB21 alleviated the Cr(6+) toxicity and enhanced the plant growth parameters and nutrient uptake. Moreover, Cr toxicity had varied response on oxidative stress tolerance at graded Cr(6+) concentration on both plants. An increase in superoxide dismutase (SOD) and catalase (CAT) activity and reduction in malonialdehyde (MDA) was observed on inoculation of strain CPSB21. Additionally, inoculation of CPSB21 enhanced the uptake of Cr(6+) in sunflower plant, while no substantial enhancement was observed on inoculation in tomato plant. Nature Publishing Group UK 2018-03-20 /pmc/articles/PMC5861048/ /pubmed/29559691 http://dx.doi.org/10.1038/s41598-018-23322-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gupta, Pratishtha
Rani, Rupa
Chandra, Avantika
Kumar, Vipin
Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title_full Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title_fullStr Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title_full_unstemmed Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title_short Potential applications of Pseudomonas sp. (strain CPSB21) to ameliorate Cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
title_sort potential applications of pseudomonas sp. (strain cpsb21) to ameliorate cr(6+) stress and phytoremediation of tannery effluent contaminated agricultural soils
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5861048/
https://www.ncbi.nlm.nih.gov/pubmed/29559691
http://dx.doi.org/10.1038/s41598-018-23322-5
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