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A Cross-Metabolomic Approach Shows that Wheat Interferes with Fluorescent Pseudomonas Physiology through Its Root Metabolites

Abstract : Roots contain a wide variety of secondary metabolites. Some of them are exudated in the rhizosphere, where they are able to attract and/or control a large diversity of microbial species. In return, the rhizomicrobiota can promote plant health and development. Some rhizobacteria belonging to the Pseudomonas genus are known to produce a wide diversity of secondary metabolites that can exert a biological activity on the host plant and on other soil microorganisms. Nevertheless, the impact of the host plant on the production of bioactive metabolites by Pseudomonas is still poorly understood. To characterize the impact of plants on the secondary metabolism of Pseudomonas, a cross-metabolomic approach has been developed. Five different fluorescent Pseudomonas strains were thus cultivated in the presence of a low concentration of wheat root extracts recovered from three wheat genotypes. Analysis of our metabolomic workflow revealed that the production of several Pseudomonas secondary metabolites was significantly modulated when bacteria were cultivated with root extracts, including metabolites involved in plant-beneficial properties.
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https://hal-cnrs.archives-ouvertes.fr/hal-03763532
Contributor : Claire Prigent-Combaret Connect in order to contact the contributor
Submitted on : Thursday, September 1, 2022 - 2:22:09 PM
Last modification on : Saturday, September 24, 2022 - 3:22:06 PM

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Laura Rieusset, Marjolaine Rey, Florence Gerin, Florence Wisniewski-Dyé, Claire Prigent-Combaret, et al.. A Cross-Metabolomic Approach Shows that Wheat Interferes with Fluorescent Pseudomonas Physiology through Its Root Metabolites. Metabolites, MDPI, 2021, 11 (2), pp.84. ⟨10.3390/metabo11020084⟩. ⟨hal-03763532⟩

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