Gamma-aminobutyric acid elicits H₂O₂ signalling and promotes wheat seed germination under combined salt and heat stress.

ABSTRACT:

Background

In the realm of wheat seed germination, abiotic stresses such as salinity and high temperature have been shown to hinder the process. These stresses can lead to the production of reactive oxygen species, which, within a certain concentration range, may actually facilitate seed germination. γ-aminobutyric acid (GABA), a non-protein amino acid, serves as a crucial signaling molecule in the promotion of seed germination. Nevertheless, the potential of GABA to regulate seed germination under the simultaneous stress of heat and salinity remains unexplored in current literature.

Methods

This study employed observational methods to assess seed germination rate (GR), physiological methods to measure H₂O₂ content, and the activities of glutamate decar

SUBMITTER: Yu S 

PROVIDER: S-EPMC11416083 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature