The Oomycete Microbe-Associated Molecular Pattern, Arachidonic Acid, and an Ascophyllum nodosum-Derived Plant Biostimulant Induce Defense Metabolome Remodeling in Tomato.

ABSTRACT: Arachidonic acid (AA) is an oomycete-derived microbe-associated molecular pattern (MAMP) capable of eliciting robust defense responses and inducing resistance in plants. Similarly, Ascophylum nodosum extract (ANE) from the brown seaweed A. nodosum, a plant biostimulant that contains AA, can also prime plants for defense against pathogen challenges. A previous parallel study comparing the transcriptomes of AA- and ANE-root-treated tomatoes demonstrated significant overlap in transcriptional profiles, a shared induced resistance phenotype, and changes in the accumulation of various defense-related phytohormones. In this work, untargeted metabolomic analysis via liquid chromatography-mass spectrometry was conducted to investigate the local and systemic metabolome-wide remodeling

SUBMITTER: Lewis DC 

PROVIDER: S-EPMC10318118 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature