title: Systemic nematicidal activity and biocontrol efficacy of Bacillus firmus against the root-knot nematode Meloidogyne incognita.
abstract: A strain of marine bacterium Bacillus firmus YBf-10 with nematicidal activity was originally isolated by our group. In the present study, the systemic nematicidal activity and biocontrol efficacy in pot experiment of B. firmus YBf-10 were investigated. Our results showed that YBf-10 exhibits systemic nematicidal activity against Meloidogyne incognita, including lethal activity, inhibition of egg hatch and motility. Pot experiment suggested that soil drenching with YBf-10 efficiently reduced damage of M. incognita to tomato plants, such as reduction of galls, egg masses on roots, and final nematode population in soil; and moreover, YBf-10 significantly promoted host plant growth. In addition, our results also indicated that the systemic nematicidal activity is likely attributed to the secondary metabolites produced by YBf-10. The obtained results of the current study confirmed that B. firmus YBf-10 is a promising nematicidal agent, and has great potential in plant-parasitic nematicidal management.
authors: State Key Laboratory of Breeding Base of Microbial Molecular Biology, College of Life Science, Hunan Normal University, 36 Lushan Road, Changsha, 410081, People's Republic of China.
authors: Jing
authors: J
authors: Xiong
authors: Qiaoni
authors: Q
authors: Zhou
authors: Haiyan
authors: H
authors: Luo
authors: Liqiu
authors: L
authors: Xia
authors: Lin
authors: L
authors: Li
authors: Ming
authors: M
authors: Sun
authors: Ziquan
authors: Z
authors: Yu
mesh_terms: D000818:Animals; D000898:Antibiosis; D001407:Bacillus / Q000502:physiology*; D018551:Solanum lycopersicum / Q000469:parasitology; D010572:Pest Control, Biological / Q000379:methods*; D010935:Plant Diseases / Q000469:parasitology*; D018517:Plant Roots / Q000469:parasitology; D014431:Tylenchoidea / Q000382:microbiology* / Q000502:physiology