Palmitic acid mediated change of rhizosphere and alleviation of Fusarium wilt disease in watermelon.

ABSTRACT: Palmitic acid (PA) in root exudates or decaying residues can reduce the incidence of soil-borne diseases and promote the growth of some crop plants. However, the effects of PA on soil-borne pathogens and microbial communities are poorly understood. Here, we investigate the effects of PA on overall watermelon microbial communities and the populations of Fusarium oxysporum f.sp. niveum (Fon). The effects of PA on the mycelial growth and spore production of Fon were tested in vitro, while its effects on Fon, total bacteria and total fungi populations, and microbial communities were evaluated in a pot experiment. The results revealed that all test concentrations of PA inhibited Fon mycelia growth and spore production. The pot experiment showed that 0.5 mM and 1 mM PA reduc

SUBMITTER: Ma K 

PROVIDER: S-EPMC8176049 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature