Latent Pathogenic Fungi in the Medicinal Plant <i>Houttuynia cordata</i> Thunb. Are Modulated by Secondary Metabolites and Colonizing Microbiota Originating from Soil.

ABSTRACT: Latent pathogenic fungi (LPFs) affect plant growth, but some of them may stably colonize plants. LPFs were isolated from healthy Houttuynia cordata rhizomes to reveal this mechanism and identified as Ilyonectria liriodendri, an unidentified fungal sp., and Penicillium citrinum. Sterile H. cordata seedlings were cultivated in sterile or non-sterile soils and inoculated with the LPFs, followed by the plants' analysis. The in vitro antifungal activity of H. cordata rhizome crude extracts on LPF were determined. The effect of inoculation of sterile seedlings by LPFs on the concentrations of rhizome phenolics was evaluated. The rates of in vitro growth inhibition amongst LPFs were determined. The LPFs had a strong negative effect on H. cordata

SUBMITTER: Ye HT 

PROVIDER: S-EPMC8458996 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature