Symbiotic effectiveness, abiotic stress tolerance and phosphate solubilizing ability of new chickpea root-nodule bacteria from soils in Kununurra Western Australia and Narrabri New South Wales Australia

Symbiotic effectiveness, abiotic stress tolerance and phosphate solubilizing ability of new chickpea root-nodule bacteria from soils in Kununurra Western Australia and Narrabri New South Wales Australia

Aims To assess the symbiotic effectiveness, tolerance to abiotic stress factors and phosphate solubilizing ability of new chickpea root-nodule bacteria. Methods Symbiotic effectiveness, abiotic stress tolerance and phosphate solubilizing ability of ten new chickpea rhizobial strains collected from s...

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Bibliographic Details
Published in:Plant and soil Vol. 495; no. 1-2; pp. 371 - 389
Main Authors: Oparah, Irene Adu, Hartley, Jade Christopher, Deaker, Rosalind, Gemell, Greg, Hartley, Elizabeth, Kaiser, Brent Norman
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-02-2024
Springer Nature B.V
Subjects:
Abiotic stress
Acidification
Agriculture
Biomedical and Life Sciences
Calcium chloride
Chickpeas
Culture media
Ecology
Effectiveness
Greenhouses
Heat resistance
High temperature
Infectivity
Legumes
Life Sciences
Nodules
Peat
pH effects
Plant Physiology
Plant Sciences
Research Article
Sodium chloride
Soil bacteria
Soil environment
Soil microorganisms
Soil Science & Conservation
Soils
Strain
Strains (organisms)
Survival
Australia
Western Australia Australia
New South Wales Australia
Symbiosis
Nitrogen fixation
Abiotic factors
Rhizobia
Phosphate solubilisation
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Summary:Aims To assess the symbiotic effectiveness, tolerance to abiotic stress factors and phosphate solubilizing ability of new chickpea root-nodule bacteria. Methods Symbiotic effectiveness, abiotic stress tolerance and phosphate solubilizing ability of ten new chickpea rhizobial strains collected from soils were evaluated using laboratory and glasshouse experiments. Results Six of the ten strains were symbiotically efficient with diversity between those and the commercial chickpea strain CC1192. High temperatures significantly affected strain survival in liquid and peat carrier. Peat carrier offered greater protection. Above 37 °C, strain infectivity decreased with no correlation between strain origin and their infectivity after exposure. Three of the new strains and CC1192 produced optimum growth and survival at pH 6.8 and at two lower pH’s of 4.4 and 5.4 were able to neutralize the growth medium while the other seven strains at high pH were able to either neutralize or acidify the growth medium. Strain survival was significantly higher at increased salt concentrations of NaCl compared to CaCl 2 . At 3% NaCl concentration, 8 strains survived while at 3% CaCl 2 only 3 survived . Many strains were resistant to more than one antibiotic. All strains were able to solubilize phosphate. The ratio between the most efficient strain and the least was 3:1. Conclusions Chickpea rhizobia strains sourced from soils in Narrabri New South Wales and Kununurra in Western Australia differed in expressed traits from the commercial strain CC1192. These unique traits could provide additional tools for rhizobial strain selection to benefit chickpea production in different soil environments.
ISSN:0032-079X
1573-5036
DOI:10.1007/s11104-023-06331-w