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GNPS - Dynamic rhizodeposition in the woody perennial Populus trichocarpa

ABSTRACT: Under nutrient-limited conditions, plants undergo physiological and metabolic changes that release specific molecules into the rhizosphere (i.e., rhizodeposition). These plant-derived compounds modify the rhizosphere environment, mobilizing otherwise inaccessible nutrients and recruiting stress-adaptive microbial communities that support stress resilience. Currently, the chemical diversity of rhizodeposition has yet to be fully realized but is expected to be a complex mixture that includes soluble organic compounds excreted from root cells, along with products of root cell turnover. Here, we developed a methodological and conceptual framework for an in-depth measurement of rhizodeposition through critical advancements in untargeted metabolomics. This approach provided foundational insights into the dynamic changes in rhizodeposition for the woody perennial Populus trichocarpa and rhizodeposit profiles varying by genotype, time, location, and environment. More broadly, this study provides a framework that will help formulate the next steps to effectively study rhizodeposition.

INSTRUMENT(S): Q Exactive Plus

ORGANISM(S): Populus Trichocarpa (ncbitaxon:3694)

SUBMITTER: Paul Abraham

PROVIDER: MSV000096347 | GNPS | Fri Nov 08 06:30:00 GMT 2024

REPOSITORIES: GNPS

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Dynamic rhizodeposition in the woody perennial Populus trichocarpa

Project description:Under nutrient-limited conditions, plants undergo physiological and metabolic changes that release specific molecules into the rhizosphere (i.e., rhizodeposition). These plant-derived compounds modify the rhizosphere environment, mobilizing otherwise inaccessible nutrients and recruiting stress-adaptive microbial communities that support stress resilience. Currently, the chemical diversity of rhizodeposition has yet to be fully realized but is expected to be a complex mixture that includes soluble organic compounds excreted from root cells, along with products of root cell turnover. Here, we developed a methodological and conceptual framework for an in-depth measurement of rhizodeposition through critical advancements in untargeted metabolomics. This approach provided foundational insights into the dynamic changes in rhizodeposition for the woody perennial Populus trichocarpa and rhizodeposit profiles varying by genotype, time, location, and environment. More broadly, this study provides a framework that will help formulate the next steps to effectively study rhizodeposition.

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