Lactuchelins represent lipopeptide siderophores produced by Pseudomonas lactucae that inhibit Xanthomonas campestris.

ABSTRACT: The seed is a habitat with limited resources and space. Although it is widely accepted that microbial competition is a key driver of the assembly of seed-associated microbial communities, the underlying mechanisms of this competition are not well understood. The initial objective of this work was to assess the importance of contact-independent microbial competition between the phytopathogenic bacterium Xanthomonas campestris pv. campestris 8004 (Xcc8004) and 30 strains representative of the bacterial populations most commonly associated with radish (Raphanus sativus) seeds. We identified Pseudomonas lactucae CFBP 13502 as a potent inhibitor of Xcc8004, mediated by exometabolites, specifically induced by certain seed-borne strains. Transcriptomic analysis linked this inducible activity to t

SUBMITTER: Chesneau G 

PROVIDER: S-EPMC12904278 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature