Antagonistic Potential of Bacillus pumilus L1 Against Root-Knot Nematode, Meloidogyne arenaria

摘要: This study was conducted to estimate the potential of Bacillus pumilus L1 against root-knot nematode, Meloidogyne arenaria, in both in vitro and in vivo conditions. B. pumilus found produce protease chitinase. When various concentrations (1–10%) bacterial culture (BC) or 0.02–0.11 mg/ml crude enzymes produced by were used treat M. arenaria eggs second-stage juveniles (J2), inhibition hatching J2 mortality significantly increased under In addition, rate improved with increasing BC enzymes. Similarly, these effects also over time after treatment BC. Moreover, caused partial degradation eggshell juvenile body when treated at 0.11 mg/ml. The pot experiment demonstrated that application potted soil significant reduction number galls egg masses plant roots population as compared untreated control 6 weeks infestation. simultaneous upon nematode inoculation proved more effective than 2 days postinoculation nematode. (BC, BCs BC2) promoted tomato growth controls (TW, Ne, GM NeT). Thus, our results ability a biocontrol agent additional activity promoter for tomato.