Augmenting Rice Defenses: Exogenous Calcium Elevates GABA Levels Against WBPH Infestation.

ABSTRACT: This study investigates the impact of exogenous calcium and gamma-aminobutyric acid (GABA) supplementation on rice growth and stress tolerance under white-backed planthopper (WBPH) infestation. We evaluated several phenotypic traits, including shoot/root length, leaf width, tiller number, panicle length, and relative water content, alongside physiological markers such as oxidative stress indicators, antioxidant enzymes activities, hormonal levels, and amino acids biosynthesis. Our results indicate that WBPH stress significantly reduces growth parameters but calcium and GABA supplementation markedly enhance shoot length (by 26% and 36%) and root length (by 38% and 64%), respectively, compared to WBPH-infested plants. Both supplementations also reduced oxidative stress, as evidenced by decre

SUBMITTER: Jan R 

PROVIDER: S-EPMC11591109 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature