Streptomyces Sesquiterpenes Trigger Banana Plant Secretion of 10-HCA to Recruit Disease-Suppressive Microbes

Researchers have identified that specific sesquiterpenes produced by *Streptomyces* bacteria trigger the secretion of 10-hydroxydecanoic acid (10-HCA) in banana plants, a process that recruits disease-suppressive microbes to the root system to combat Fusarium wilt. This interaction between the plant’s chemical signaling and the soil microbiome provides a mechanism for enhancing the plant’s natural resistance to the fungal pathogen *Fusarium oxysporum* f. sp. *cubense*.

The study details how the banana plant releases 10-HCA in response to the presence of *Streptomyces*-derived sesquiterpenes. This fatty acid acts as a chemical signal that selectively attracts beneficial microorganisms to the rhizosphere, the area of soil immediately surrounding the roots. These recruited microbes then establish a protective barrier that inhibits the growth and infection capabilities of the Fusarium wilt fungus. By analyzing the chemical pathways involved, the researchers mapped the sequence from the initial bacterial signaling to the subsequent recruitment of the protective microbial community, offering new data on how plant-microbe interactions influence disease outcomes in agricultural settings.

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Source: GO-AI-ne1

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Date: June 3, 2026

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GOAI