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- W4385170669 abstract "Abstract Aphanomyces euteiches causes root rot in pea, leading to significant yield losses. However, the metabolites involved in this pathosystem have not been thoroughly studied. This study aimed to fill this gap and explore mechanisms of bacterial suppression of A. euteiches via untargeted metabolomics using pea grown in a controlled environment. Chemical isotope labeling (CIL), followed by liquid chromatography-mass spectrometry (LC-MS), was used for metabolite separation and detection. Univariate and multivariate analyses showed clear separation of metabolites from pathogen-treated pea roots and roots from other treatments. A three-tier approach positively or putatively identified 5249 peak pairs or metabolites. Of these, 403 were positively identified in tier 1; 940 were putatively identified with high confidence in tier 2. There were substantial changes in amino acid pool, and fatty acid and phenylpropanoid pathway products. More metabolites, including salicylic and jasmonic acids, were upregulated than downregulated in A. euteiches -infected roots. 1-aminocyclopropane-1-carboxylic acid and 12-oxophytodienoic acid were upregulated in A. euteiches + bacterium-treated roots compared to A. euteiches -infected roots. Most of the metabolites upregulated in response to A. euteiches infection were not different from control levels in A. euteiches + bacterium-treated plants. The results of this study could facilitate improved disease management." @default.
- W4385170669 created "2023-07-24" @default.
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- W4385170669 date "2023-07-24" @default.
- W4385170669 modified "2023-10-02" @default.
- W4385170669 title "Deciphering Aphanomyces eutieches-pea-biocontrol bacterium interactions through untargeted metabolomics" @default.
- W4385170669 doi "https://doi.org/10.21203/rs.3.rs-3150396/v1" @default.
- W4385170669 hasPublicationYear "2023" @default.
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