The relationship between shifts in the rhizosphere microbial community and root rot disease in a continuous cropping American ginseng system.

ABSTRACT: The root rot disease causes a great economic loss, and the disease severity usually increases as ginseng ages. However, it is still unclear whether the disease severity is related to changes in microorganisms during the entire growing stage of American ginseng. The present study examined the microbial community in the rhizosphere and the chemical properties of the soil in 1-4-year-old ginseng plants grown in different seasons at two different sites. Additionally, the study investigated ginseng plants' root rot disease index (DI). The results showed that the DI of ginseng increased 2.2 times in one sampling site and 4.7 times in another during the 4 years. With respect to the microbial community, the bacterial diversity increased with the seasons in the first, third, and fourth years but re

SUBMITTER: Bi YM 

PROVIDER: S-EPMC9971623 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature