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Biocontrol of Chickpea Fusarium Wilt by Bacillus Spp. Rhizobacteria

100%

Zaim S., Belabid L., Bellahcene M.

Journal of Plant Protection Research

2013

tom 53

nr 2

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.

Ograniczanie wyników

1 Journal of Plant Protection Research

1 Belabid L.

1 Bellahcene M.

1 Zaim S.

1 2013

Wyniki wyszukiwania

Biocontrol of Chickpea Fusarium Wilt by Bacillus Spp. Rhizobacteria