Multi-Omics Provides New Insights into the Aroma Regulation of Rhododendron fortunei Lindl Treated with Methyl Jasmonate and Brassinosteroids.

ABSTRACT: Rhododendron fortunei Lindl is known for its unique aroma, but the molecular mechanism behind plant hormone-mediated aroma biosynthesis remains unclear. To explore how brassinosteroids (BRs) and methyl jasmonate (MeJA) regulate its aroma, this study analyzed R. fortunei petal samples via physiological assays, volatile metabolome analysis, and transcriptome sequencing. Physiologically, BR/MeJA significantly increased the superoxide dismutase (SOD) and catalase (CAT) activity and decreased the malondialdehyde (MDA) content. Metabolome analysis identified 1268 volatile organic compounds (VOCs), with 265/70 VOCs up-/downregulated in the BR group and 248/181 VOCs up-/downregulated in the MeJA group compared to the controls. Transcriptome sequencing identified 19,333 differentially

SUBMITTER: Zhang D 

PROVIDER: S-EPMC12731677 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature