Qili Zhang, Danni He, Songbei Ying, Shiyan Lu, Jiali Wei, Ping Li*
Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 619-631, 2020, DOI:10.32604/phyton.2020.010379
Abstract Seeds germination is strictly controlled by environment factor such as
high temperature (HT) through altering the balance between gibberellin acid (GA)
and abscisic acid (ABA). Gama-aminobutyric acid (GABA) is a small molecule
with four-carbon amino acid, which plays a crucial role during plant physiological
process associated with pollination, wounding or abiotic stress, but its role in
seeds germination under HT remains elusive. In this study we found that HT
induced the overaccumulation of ROS, mainly H2O2 and O2-
, to suppress seeds
germination, meanwhile, HT also activated the enzyme activity of GAD for the
rapid accumulation of GABA, hinting the… More >
Login
Register
