Exogenous application of γ-aminobutyric acid alleviates temperature stress in mungbean (Vigna radiata) and its wild non-progenitor (Vigna glabrescens) by regulating heat shock protein genes.

ABSTRACT: Abiotic stresses significantly affect plant growth and productivity. Identification of stress-tolerant genotypes is the best and an effective mitigation strategy. The present study evaluates the thermosensitive Vigna radiata cv. Shikha and the thermotolerant Vigna glabrescens accession TCR-20 under the control (non stress), cold stress, and heat stress conditions, without any treatment or foliar treatment with indole-3-acetic acid (IAA), salicylic acid (SA), or gamma-aminobutyric acid (GABA). Chlorophyll content revealed that TCR-20 maintained higher chlorophyll content under stress, whereas Shikha exhibited higher chlorophyll content upon foliar spray of GABA. Histochemical staining confirmed an increased oxidative stress under extreme temperatures, with GABA effectively mitigated the hyd

SUBMITTER: Singh P 

PROVIDER: S-EPMC12659262 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature