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Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant

Due to ongoing human activities, heavy metals are heavily accumulated in the soil. This leads to an increase in the discharge and the quick spread of heavy metal pollution in human settlements and natural habitats, having a disastrous effect on agricultural products. The current experiment was plann...

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Autores principales: Mushtaq, Zain, Akhter, Adnan, Khan, Hafiz Azhar Ali, Anwar, Waheed, Hashem, Abeer, Avila-Quezada, Graciela Dolores, Abd_Allah, Elsayed Fathi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458302/
https://www.ncbi.nlm.nih.gov/pubmed/37631216
http://dx.doi.org/10.3390/plants12163005
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author Mushtaq, Zain
Akhter, Adnan
Khan, Hafiz Azhar Ali
Anwar, Waheed
Hashem, Abeer
Avila-Quezada, Graciela Dolores
Abd_Allah, Elsayed Fathi
author_facet Mushtaq, Zain
Akhter, Adnan
Khan, Hafiz Azhar Ali
Anwar, Waheed
Hashem, Abeer
Avila-Quezada, Graciela Dolores
Abd_Allah, Elsayed Fathi
author_sort Mushtaq, Zain
collection PubMed
description Due to ongoing human activities, heavy metals are heavily accumulated in the soil. This leads to an increase in the discharge and the quick spread of heavy metal pollution in human settlements and natural habitats, having a disastrous effect on agricultural products. The current experiment was planned to evaluate the effect of lead-tolerant-plant-growth-promoting rhizobacteria (LTPGPR) on growth, yield, antioxidant activities, physiology, and lead uptake in the root, shoot, and seed of Indian mustard (Brassica juncea) in lead-amended soil. Three pre-isolated well-characterized lead-tolerant rhizobacterial strains—S10, S5, and S2—were used to inoculate seeds of Indian mustard grown at three different levels of lead (300 mg kg(−1), 600 mg kg(−1), 900 mg kg(−1)) contaminated soil. The experiment was designed following a completely randomized design (CRD) under factorial arrangements. Lead nitrate was used as a source of lead contamination. At harvesting, data regarding growth, physiology, yield per plant, antioxidant activities, malondialdehyde and proline content, and lead uptake in the root, shoot, and seed of Indian mustard were recorded. Results demonstrated that lead contamination at all levels significantly reduced the plant growth, yield, and physiological processes. Plants inoculated with lead-tolerant rhizobacteria showed a significant improvement in plant growth, yield, antioxidant activities, and physiological attributes and cause a valuable reduction in the malondialdehyde contents of Indian mustard in lead-contaminated soil. Moreover, plants inoculated with lead-tolerant rhizobacteria also showed an increment in lead uptake in the vegetative parts and a significant reduction of lead contents in the seed of Indian mustard.
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spelling pubmed-104583022023-08-27 Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant Mushtaq, Zain Akhter, Adnan Khan, Hafiz Azhar Ali Anwar, Waheed Hashem, Abeer Avila-Quezada, Graciela Dolores Abd_Allah, Elsayed Fathi Plants (Basel) Article Due to ongoing human activities, heavy metals are heavily accumulated in the soil. This leads to an increase in the discharge and the quick spread of heavy metal pollution in human settlements and natural habitats, having a disastrous effect on agricultural products. The current experiment was planned to evaluate the effect of lead-tolerant-plant-growth-promoting rhizobacteria (LTPGPR) on growth, yield, antioxidant activities, physiology, and lead uptake in the root, shoot, and seed of Indian mustard (Brassica juncea) in lead-amended soil. Three pre-isolated well-characterized lead-tolerant rhizobacterial strains—S10, S5, and S2—were used to inoculate seeds of Indian mustard grown at three different levels of lead (300 mg kg(−1), 600 mg kg(−1), 900 mg kg(−1)) contaminated soil. The experiment was designed following a completely randomized design (CRD) under factorial arrangements. Lead nitrate was used as a source of lead contamination. At harvesting, data regarding growth, physiology, yield per plant, antioxidant activities, malondialdehyde and proline content, and lead uptake in the root, shoot, and seed of Indian mustard were recorded. Results demonstrated that lead contamination at all levels significantly reduced the plant growth, yield, and physiological processes. Plants inoculated with lead-tolerant rhizobacteria showed a significant improvement in plant growth, yield, antioxidant activities, and physiological attributes and cause a valuable reduction in the malondialdehyde contents of Indian mustard in lead-contaminated soil. Moreover, plants inoculated with lead-tolerant rhizobacteria also showed an increment in lead uptake in the vegetative parts and a significant reduction of lead contents in the seed of Indian mustard. MDPI 2023-08-21 /pmc/articles/PMC10458302/ /pubmed/37631216 http://dx.doi.org/10.3390/plants12163005 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mushtaq, Zain
Akhter, Adnan
Khan, Hafiz Azhar Ali
Anwar, Waheed
Hashem, Abeer
Avila-Quezada, Graciela Dolores
Abd_Allah, Elsayed Fathi
Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title_full Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title_fullStr Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title_full_unstemmed Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title_short Impact Assessment of Lead-Tolerant Rhizobacteria to Improve Soil Health Using Indian Mustard (Brassica juncea) as an Indicator Plant
title_sort impact assessment of lead-tolerant rhizobacteria to improve soil health using indian mustard (brassica juncea) as an indicator plant
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458302/
https://www.ncbi.nlm.nih.gov/pubmed/37631216
http://dx.doi.org/10.3390/plants12163005
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