Biocontrol of Chickpea Fusarium wilt by bacillus spp. Rhizobacteria

Zaim, S. and Belabid, L. and Bellahcene, M. (2013) Biocontrol of Chickpea Fusarium wilt by bacillus spp. Rhizobacteria. Journal of Plant Protection Research, 53 (2). pp. 177-183.

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Abstract

Among 131 rhizobacteria isolates, 29 potentially antagonistic strains were screened in in vitro assays. The five antagonistic Bacillus spp. Rb29, Rb6, Rb12, Rb4, and Rb15 showed the most inhibitory effect against FOC1 (from 25.63 to 71.11%), mycelial growth, and FOC2 (from 28.43 to 60.65%) in vitro. Results also revealed that production of volatile metabolite, components and inhibition of the test pathogen by volatile metabolites varied among different antagonistic rhizobacteria. Isolates Rb29, Rb6, Rb12, Rb4, and Rb15 produced more volatile metabolites which inhibited mycelial FOC growth by 40%. Chickpea Fusarium wilt severity caused by FOC1 was reduced from 60 to 99% in the susceptible cultivar ILC 482 treated with antagonistic Bacillus spp. (Rb29, Rb6, Rb12, Rb4, and Rb15) in pot assays and by 98, 81, 68, 64, 57.20%, respectively, in the field trials. As for their beneficial effects on disease control, the results revealed that Bacillus spp. may improve plant growth and disease control.

Item Type: Article
Uncontrolled Keywords: antagonistic strains, Bacillus, bacterized seed, Cicer arietinum, screening
Author Affiliation: Laboratoire de Recherche sur les Systèmes Biologiques et la Géomatique, Université de Mascara, P.O. Box 305, Algeria
Subjects: Plant Protection
Divisions: Chickpea
Depositing User: Mr. SanatKumar Behera
Date Deposited: 22 May 2013 05:50
Last Modified: 22 May 2013 05:50
Official URL: http://www.plantprotection.pl/index.php?option=com...
URI: http://eprints.icrisat.ac.in/id/eprint/10599

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