Evaluation of plant growth promoting potentials exhibited by rhizobacteria associated with beans plant

Chinakwe, EC and Ibekwe, VI and Nwogwugwu, UN and Ofoegbu, J and Mike-Anosike, E and Nwachukwu, IN and Adeleye, S and Chinakwe, PO (2019) Evaluation of plant growth promoting potentials exhibited by rhizobacteria associated with beans plant. Malaysian Journal of Sustainable Agriculture (MJSA) (Malaysia), 3. pp. 20-22. ISSN 2521-2931

Plant growth promoting rhizobacteria (PGPR) isolated from the rhizosphere of velvet Beans plant grown on the agricultural research farmland of Federal University of Technology, Owerri, were evaluated for their growth promoting potentials. The four isolates: Micrococcus sp, Bacillus sp, Corynebacterium sp, and Enterococcus sp, were evaluated for plant growth promoting abilities, such as phosphate solubilization, indole acetic acid (IAA), ammonia (NH3), and Hydrogen Cyanide (HCN) production. Micrococcus sp, Bacillus sp, and Enterococcus sp produced IAA, while Corynebacterium sp, and also Bacillus sp and Enterococus sp solubilized phosphate. All the isolates were able to produce HCN and NH3. Rhizobacteria associated with beans plant constitute important sources of potentially beneficial microorganisms with plant growth promoting activity or antagonistic effects against phytopathogens. The results obtained in this study suggests that these rhizobacteria possess multiple plant growth promoting attributes which can be applied as biofertilizers or as biocontrol agents in agriculture, to improve plant growth and productivity.

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Abstract

Plant growth promoting rhizobacteria (PGPR) isolated from the rhizosphere of velvet Beans plant grown on the agricultural research farmland of Federal University of Technology, Owerri, were evaluated for their growth promoting potentials. The four isolates: Micrococcus sp, Bacillus sp, Corynebacterium sp, and Enterococcus sp, were evaluated for plant growth promoting abilities, such as phosphate solubilization, indole acetic acid (IAA), ammonia (NH3), and Hydrogen Cyanide (HCN) production. Micrococcus sp, Bacillus sp, and Enterococcus sp produced IAA, while Corynebacterium sp, and also Bacillus sp and Enterococus sp solubilized phosphate. All the isolates were able to produce HCN and NH3. Rhizobacteria associated with beans plant constitute important sources of potentially beneficial microorganisms with plant growth promoting activity or antagonistic effects against phytopathogens. The results obtained in this study suggests that these rhizobacteria possess multiple plant growth promoting attributes which can be applied as biofertilizers or as biocontrol agents in agriculture, to improve plant growth and productivity.

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Item Type:	Article
AGROVOC Term:	beans
AGROVOC Term:	rhizosphere
AGROVOC Term:	Rhizobacteria
AGROVOC Term:	Micrococcus
AGROVOC Term:	Bacillus
AGROVOC Term:	Corynebacterium
AGROVOC Term:	Enterococcus
AGROVOC Term:	biofertilizers
Geographical Term:	Nigeria
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	28 Apr 2026 03:32
Last Modified:	28 Apr 2026 03:32
URI:	http://webagris.upm.edu.my/id/eprint/3858

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