Bacillus cereus a potential strain infested cereal cyst nematode (Heterodera avenae)
Bacillus cereus a potential strain infested cereal cyst nematode (Heterodera avenae)
S. Ahmed†, Q. Liu and H. Jian
ABSTRACT
Bacterial strains were isolated from infested Heterodera avenae cysts and screened against the second stage juvenile
(J2) mortality assay in vitro. About 40.16 % isolates showed 40.0% J2 mortality during 12 hours. Significantly
increased upto 86.0% mortality was observed in 24 hour exposures. Among them twenty six Bacillus strains were
identified by morphological, physiological and biochemical carbon source utilization using API 50CHB strips that
belonged to Bacillus cereus group. Bacillus cereus strain B48 secondary metabolite with protease and chitinase
activity was used as seed bacterization in green house experiments. In green house significant reduction in white
female development was observed for avermectin (84.53%) followed by B. cereus strain B48 (78.10%) as compared
to results of the untreated control treatment (P≤0.05).
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June 2019
Pakistan Journal of Nematology, Vol. 37, Iss. 1, Pages 1-105
