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The plant stress hormone jasmonic acid evokes defensive responses in streptomycetes

Authors
  • van der Meij, Anne
  • Elsayed, Somayah S.
  • Du, Chao
  • Willemse, Joost
  • Wood, Thomas M.
  • Martin, Nathaniel I.
  • Raaijmakers, Jos M.
  • van Wezel, Gilles P.
Type
Published Article
Journal
Applied and Environmental Microbiology
Publisher
American Society for Microbiology
Publication Date
Oct 30, 2023
Volume
89
Issue
11
Identifiers
DOI: 10.1128/aem.01239-23
Source
ASM Journals
Keywords
License
Yellow

Abstract

Microorganisms that live on or inside plants can influence plant growth and health. Among the plant-associated bacteria, streptomycetes play an important role in defense against plant diseases, but the underlying mechanisms are not well understood. Here, we demonstrate that the plant hormones jasmonic acid (JA) and methyl jasmonate directly affect the life cycle of streptomycetes by modulating antibiotic synthesis and promoting faster development. Moreover, the plant hormones specifically stimulate the synthesis of the polyketide antibiotic actinorhodin in Streptomyces coelicolor. JA is then modified in the cell by amino acid conjugation, thereby quenching toxicity. Collectively, these results provide new insight into the impact of a key plant hormone on diverse phenotypic responses of streptomycetes.

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