Photoregulation of lipid metabolism in <i>Begonia</i>: synergistic effects of spectral composition and intensity on stress adaptation.

ABSTRACT: Light quality and intensity are pivotal environmental cues regulating plant lipid metabolism, yet their combined effects in shade-adapted species remain poorly understood. This study investigates how white (W), red (R), and blue (B) light at intensities of 5, 20, and 50 μmol·m^-2·s^-1 modulate lipid remodeling in Begonia 'Black Velvet'. Using integrated lipidomics and transcriptomics, we detected 492 lipid metabolites, with steroids (23.17%) and isoprenes (21.95%) predominating. Principal component analysis revealed that light intensity exerted stronger discriminatory power than spectral quality on global lipid profiles. We annotated 443 differential lipid metabolites (DLMs), including 25 influenced primarily by light quality (e.g., pregnanetriol under blue light

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12855531 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature