Dickeya zeae strains isolated from rice, banana and clivia rot plants show great virulence differentials.

ABSTRACT:

Background

Dickeya zeae is the causal agent of maize and rice foot rot diseases, but recently it was also found to infect banana and cause severe losses in China. Strains from different sources showed significant diversity in nature, implying complicated evolution history and pathogenic mechanisms.

Results

D. zeae strains were isolated from soft rot banana plants and ornamental monocotyledonous Clivia miniata. Compared with D. zeae strain EC1 isolated from rice, clivia isolates did not show any antimicrobial activity, produced less extracellular enzymes, had a much narrow host ranges, but released higher amount of extracellular polysaccharides (EPS). In contrast, the banana isolates in general produced more extracellular enzymes and EPS than strain EC1. Furthermore, we provi

SUBMITTER: Hu M 

PROVIDER: S-EPMC6194671 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature