Research demonstrates biocontrol potential of Bacillus amyloliquefaciens in improving watermelon yield, suggesting microbial diversity enhancement as a critical factor.
Key Points
Bacillus amyloliquefaciens strain PP19 improves watermelon resistance to continuous cropping obstacles, resulting in better fruit quality.
PP19 inhibited Fusarium oxysporum growth significantly, especially in the presence of autotoxins secreted by watermelon roots.
Co-culture experiments showed PP19 effectively degraded and utilized phenolic autotoxins, altering the rhizosphere microbial community.
Field trials indicated that PP19 increased the diversity and number of beneficial bacteria in the watermelon rhizosphere.