C. Benezech - Genotype impacts plant responses to biosolutions

Abstract

Biosolutions are promising tools to enhance crop productivity under increasing environmental constraints, yet their modes of action remain poorly understood. My current work investigates the molecular, metabolomic, and physiological responses induced by different biostimulants in wheat and pea. Using a multi-omics approach across multiple genotypes, we show that plant responses are primarily driven by genetic background, followed by the applied biosolution. Our analyses highlight that distinct differentially expressed genes are involved in these responses, but they converge on similar molecular pathways and biological processes, underscoring the complexity of biosolution modes of action. These results represent the first multi-omics atlas enabling the identification of potential markers of biosolution responses, with metabolites emerging as more robust indicators than transcriptomic markers. Finally, I conduct biotic and abiotic stress assays to evaluate the ability of biostimulants to enhance plant resilience.

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Claire Benezech est chercheuse au Plant Health Institute de Montpellier (PHIM) développe des travaux de recherche sur les réponses moléculaires, métabolomiques et physiologiques des plantes aux biosolutions. Elle mobilise des approches multi-omiques et multi-génotypes pour mieux comprendre les modes d’action des biostimulants et identifier des marqueurs robustes associés à la résilience des plantes face aux stress

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