Nickel tolerance and biosorption potential of rhizobia associated with horse gram [<i>Macrotyloma uniflorum</i> (Lam.) Verdc.]

Edulamudi, Prabhavati; Johnson, A. M. Anthony; Vanga, Umamaheswara Rao; Divi, Venkata Ramana Sai Gopal; Konada, Veera Mallaiah

doi:10.1080/15226514.2021.1884182

Cited by 6 publications

(5 citation statements)

References 44 publications

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“…At the lowest dose of 0.2 mM, Rhizobium strains L9 and L19 showed better resistance to Ni than Mesorhizobium L42 and L50 [ 21 ]. In addition, in vitro, the rhizobium HGR-4 isolated from horse gram root nodules could tolerate 1000 mg g −1 Ni [ 14 ]. On the other hand, among the bacteria tested ( B. thuringiensis 002, B. fortis 162, B. subtilis 174, and B. farraginis 354), B. subtilis 174 had the highest Ni tolerance, growing in conditions containing Ni at a concentration of 400 mg L −1 [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

“…Hence, the increase in Ni content in the roots of faba bean plants is due to biosorption of Ni by Rhizobium + B. subtilis . Based on these findings, it appears that biosorption by bacterial inoculation is responsible for the change of Ni into insoluble forms [ 14 , 42 ]. Reduced Ni levels in plant organs could be attributed to RL9 strain’s adsorption/desorption, according to research by the authors of [ 20 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

“…Excess Ni in plants has become a major issue, posing a serious threat to the sustainability of agriculture. Species and age of plant, growing conditions, Ni concentration, and exposure period in the soil all influence the impact of Ni toxicity on physiological and metabolic functions [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, finding plant growth-promoting rhizobacteria (PGPR) with high heavy metal resistance capacities became a top priority [ 18 ]. Edulamudi [ 14 ] showed that, in soils amended with Ni, horse gram coupled with rhizobia could develop nodules and fix nitrogen, and both root nodules and soil were used to assess the rhizobial strains’ biosorption capability for the removal of Ni from contaminated soils. On the other hand, Bacillus thuringiensis 002, B. subtilis 174, and B. fortis 162 accelerated root elongation and Ni mobility in soil and increased Ni accumulation in Acrasis rosea [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Interaction between Symbiotic N2 Fixing Bacteria and Bacillus strains to Improve Growth, Physiological Parameters, Antioxidant Enzymes and Ni Accumulation in Faba Bean Plants (Vicia faba) under Nickel Stress

Elbagory

El-Nahrawy

Omara

2022

Plants

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Several activities in the agriculture sector lead to the accumulation of Nickel (Ni) in soil. Therefore, effective and economical ways to reduce soil bioavailability of Ni must be identified. Five isolates of Rhizobium leguminosarum biovar Viceae (ICARDA 441, ICARDA 36, ICARDA 39, TAL–1148, and ARC–207) and three bacterial strains (Bacillus subtilis, B. circulance, and B. coagulans) were evaluated for tolerance and biosorption of different levels of Ni (0, 20, 40, 60, and 80 mg L−1). Pot experiments were conducted during the 2019/2020 and 2020/2021 seasons using four inoculation treatments (inoculation with the most tolerant Rhizobium (TAL–1148), inoculation with the most tolerant Rhizobium (TAL–1148) + B. subtilis, inoculation with the most tolerant Rhizobium (TAL–1148) + B. circulance, and inoculation with the most tolerant Rhizobium (TAL–1148) + B. coagulans) under different levels of Ni (0, 200, 400, and 600 mg kg−1), and their effects on growth, physiological characteristics, antioxidant enzymes, and Ni accumulation in faba bean plants (Vicia faba C.V. Nobaria 1) were determined. The results showed that Rhizobium (TAL–1148) and B. subtilis were the most tolerant of Ni. In pot trials, inoculation with the most tolerant Rhizobium TAL–1148 + B. subtilis treatment was shown to be more effective in terms of growth parameters (dry weight of plant, plant height, number of nodules, and N2 content), and this was reflected in physiological characteristics and antioxidant enzymes under 600 mg kg−1 Ni compared to the other treatments in the 2019/2020 season. In the second season, 2020/2021, a similar pattern was observed. Additionally, lower concentrations of Ni were found in faba bean plants (roots and shoots). Therefore, a combination of the most tolerant Rhizobium (TAL–1148) + B. subtilis treatment might be used to reduce Ni toxicity.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synergistic Interaction between Symbiotic N2 Fixing Bacteria and Bacillus strains to Improve Growth, Physiological Parameters, Antioxidant Enzymes and Ni Accumulation in Faba Bean Plants (Vicia faba) under Nickel Stress

Elbagory

El-Nahrawy

Omara

2022

Plants

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“…This genotype was further tested for antioxidant activity, and was found to exhibit enhanced antioxidant activity under salinity stress (Desingh and Kanagaraj, 2019). Separately, the same Paiyur-2 variety was found to be promising for salinity tolerance, and heavy metal tolerance was observed in Madhu (for chromium) and in HGR-4 (for nickel; Dhali et al, 2021;Edulamudi et al, 2021). Based on a screening of 88 germplasm lines for biochemical parameters, accessions TCR491, IC110286, IC56145, and IC53641 were identified as suitable for environments imposing drought stress (Sharma and Chahota, 2022).…”

Section: Abiotic Stressmentioning

confidence: 99%

Mining legume germplasm for genetic gains: An Indian perspective

et al. 2023

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Legumes play a significant role in food and nutritional security and contribute to environmental sustainability. Although legumes are highly beneficial crops, it has not yet been possible to enhance their yield and production to a satisfactory level. Amid a rising population and low yield levels, per capita average legume consumption in India has fallen by 71% over the last 50 years, and this has led to protein-related malnutrition in a large segment of the Indian population, especially women and children. Several factors have hindered attempts to achieve yield enhancement in grain legumes, including biotic and abiotic pressures, a lack of good ideotypes, less amenability to mechanization, poorer responsiveness to fertilizer input, and a poor genetic base. Therefore, there is a need to mine the approximately 0.4 million ex situ collections of legumes that are being conserved in gene banks globally for identification of ideal donors for various traits. The Indian National Gene Bank conserves over 63,000 accessions of legumes belonging to 61 species. Recent initiatives have been undertaken in consortia mode with the aim of unlocking the genetic potential of ex situ collections and conducting large-scale germplasm characterization and evaluation analyses. We assume that large-scale phenotyping integrated with omics-based science will aid the identification of target traits and their use to enhance genetic gains. Additionally, in cases where the genetic base of major legumes is narrow, wild relatives have been evaluated, and these are being exploited through pre-breeding. Thus far, >200 accessions of various legumes have been registered as unique donors for various traits of interest.

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Physiology and Abiotic Stresses

Pathak

2023

Genetics, Physiology and Cultivation of Moth Bean, Cowpea and Horse Gram

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Nickel tolerance and biosorption potential of rhizobia associated with horse gram [Macrotyloma uniflorum (Lam.) Verdc.]

Cited by 6 publications

References 44 publications

Synergistic Interaction between Symbiotic N2 Fixing Bacteria and Bacillus strains to Improve Growth, Physiological Parameters, Antioxidant Enzymes and Ni Accumulation in Faba Bean Plants (Vicia faba) under Nickel Stress

Synergistic Interaction between Symbiotic N2 Fixing Bacteria and Bacillus strains to Improve Growth, Physiological Parameters, Antioxidant Enzymes and Ni Accumulation in Faba Bean Plants (Vicia faba) under Nickel Stress

Mining legume germplasm for genetic gains: An Indian perspective

Physiology and Abiotic Stresses

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