The Biocontrol Functions of Bacillus velezensis Strain Bv-25 Against Meloidogyne incognita.

ABSTRACT: Meloidogyne incognita is obligate parasitic nematode with a wide variety of hosts that causes huge economic losses every year. In an effort to identify novel bacterial biocontrols against M. incognita, the nematicidal activity of Bacillus velezensis strain Bv-25 obtained from cucumber rhizosphere soil was measured. Strain Bv-25 could inhibit the egg hatching of M. incognita and had strong nematicidal activity, with the mortality rate of second-stage M. incognita juveniles (J2s) at 100% within 12 h of exposure to Bv-25 fermentation broth. The M. incognita genes ord-1, mpk-1, and flp-18 were suppressed by Bv-25 fumigation treatment after 48 h. Strain Bv-25 could colonize cucumber roots, with 5.94 × 10⁷ colony-forming u

SUBMITTER: Tian XL 

PROVIDER: S-EPMC9022661 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature