Endophytic Bacillus velezensis strain B-36 is a potential biocontrol agent against lotus rot caused by Fusarium oxysporum.

ABSTRACT:

Aim

The aim of this study was to screen potential lotus plant endophytic bacterial isolate for effective inhibition against lotus rot causing fungal pathogen Fusarium oxysporum.

Methods and results

In this study, endophytic bacteria were isolated from lotus tissues and tested for antagonistic activities against the pathogenic fungus F. oxysporum. Among the putative endophytic Bacillus strains identified, suspensions of the strain B-36 showed the highest inhibition rate against F. oxysporum growth. Pot assays indicated that B-36 was effective in controlling F. oxysporum-inducing lotus rot. However, the control efficiency varied with the inoculation method and concentration, where injection of 800 μl B-36 suspension per plant (2 × 10⁸  CFU per ml) into stems showed

SUBMITTER: Wang GF 

PROVIDER: S-EPMC7079251 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature