Multifarious Plant Growth-Promoting Rhizobacterium
PGPR
antioxidant enzymes
chickpea
lipid peroxidation
salt tolerance
Journal
Frontiers in bioscience (Landmark edition)
ISSN: 2768-6698
Titre abrégé: Front Biosci (Landmark Ed)
Pays: Singapore
ID NLM: 101612996
Informations de publication
Date de publication:
19 10 2023
19 10 2023
Historique:
received:
11
06
2023
revised:
15
07
2023
accepted:
30
08
2023
medline:
6
11
2023
pubmed:
3
11
2023
entrez:
2
11
2023
Statut:
ppublish
Résumé
Chickpea is one of the most important leguminous crops and its productivity is significantly affected by salinity stress. The use of ecofriendly, salt-tolerant, plant growth-promoting rhizobacteria (PGPR) as a bioinoculant can be very effective in mitigating salinity stress in crop plants. In the present study, we explored, characterized, and evaluated a potential PGPR isolate for improving chickpea growth under salt stress. A potential PGPR was isolated from rhizospheric soils of chickpea plants grown in the salt-affected area of eastern Uttar Pradesh, India. The isolate was screened for salt tolerance and characterized for its metabolic potential and different plant growth-promoting attributes. Further, the potential of the isolate to promote chickpea growth under different salt concentrations was determined by a greenhouse experiment. A rhizobacteria isolate, CM94, which could tolerate a NaCl concentration of up to 8% was selected for this study. Based on the BIOLOG carbon source utilization, isolate CM94 was metabolically versatile and able to produce multiple plant growth-promoting attributes, such as indole acetic acid, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, siderophore, hydrogen cyanide (HCN), and ammonia as well as solubilized phosphate. A polyphasic approach involving the analysis of fatty acid methyl ester (FAME) and 16S rRNA gene sequencing confirmed the identity of the isolate as Overall, the results suggested that using
Sections du résumé
BACKGROUND
Chickpea is one of the most important leguminous crops and its productivity is significantly affected by salinity stress. The use of ecofriendly, salt-tolerant, plant growth-promoting rhizobacteria (PGPR) as a bioinoculant can be very effective in mitigating salinity stress in crop plants. In the present study, we explored, characterized, and evaluated a potential PGPR isolate for improving chickpea growth under salt stress.
METHODS
A potential PGPR was isolated from rhizospheric soils of chickpea plants grown in the salt-affected area of eastern Uttar Pradesh, India. The isolate was screened for salt tolerance and characterized for its metabolic potential and different plant growth-promoting attributes. Further, the potential of the isolate to promote chickpea growth under different salt concentrations was determined by a greenhouse experiment.
RESULTS
A rhizobacteria isolate, CM94, which could tolerate a NaCl concentration of up to 8% was selected for this study. Based on the BIOLOG carbon source utilization, isolate CM94 was metabolically versatile and able to produce multiple plant growth-promoting attributes, such as indole acetic acid, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, siderophore, hydrogen cyanide (HCN), and ammonia as well as solubilized phosphate. A polyphasic approach involving the analysis of fatty acid methyl ester (FAME) and 16S rRNA gene sequencing confirmed the identity of the isolate as
CONCLUSIONS
Overall, the results suggested that using
Identifiants
pubmed: 37919081
pii: S2768-6701(23)01026-2
doi: 10.31083/j.fbl2810241
doi:
Substances chimiques
RNA, Ribosomal, 16S
0
Soil
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
241Informations de copyright
© 2023 The Author(s). Published by IMR Press.
Déclaration de conflit d'intérêts
The authors declare that there is no conflict of interest. Given the role as Guest Editor and Editorial Board Member, Naeem Khan had no involvement in the peer-review of this article and has no access to information regarding its peer-review. Full responsibility for the editorial process for this article was delegated to Jorge M.L. Marques da Silva.