Temporal analysis of physiological phenotypes identifies novel metabolic and genetic underpinnings of senescence in maize
Authors: Brar, M. S., Kumar, R., Kunduru, B., McMahan, C. S., Tharayil, N., Sekhon, R. S.
Date: 2025-03-12 · Version: 1
DOI: 10.1101/2025.03.07.641920 Category: Plant Biology
Model Organism: Zea mays
▶ AI Summary
The study generated a temporal physiological and metabolomic map of leaf senescence in diverse maize inbred lines differing in stay‑green phenotype, identifying 84 metabolites associated with senescence and distinct metabolic signatures between stay‑green and non‑stay‑green lines. Integration of metabolite data with genomic information uncovered 56 candidate genes, and reverse‑genetic validation in maize and Arabidopsis demonstrated conserved roles for phenylpropanoids such as naringenin chalcone and eriodictyol in regulating senescence.
leaf senescence staygreen metabolomics phenylpropanoids maize