Multiple forms of vitamin B₆ regulate salt tolerance by balancing ROS and abscisic acid levels in maize root.

ABSTRACT: Salt stress causes osmotic stress, ion toxicity and oxidative stress, inducing the accumulation of abscisic acid (ABA) and excessive reactive oxygen species (ROS) production, which further damage cell structure and inhibit the development of roots in plants. Previous study showed that vitamin B₆ (VB₆) plays a role in plant responses to salt stress, however, the regulatory relationship between ROS, VB₆ and ABA under salt stress remains unclear yet in plants. In our study, we found that salt stress-induced ABA accumulation requires ROS production, in addition, salt stress also promoted VB₆ (including pyridoxamine (PM), pyridoxal (PL), pyridoxine (PN), and pyridoxal 5'-phosphate (PLP)) accumulation, which involved in ROS scavenging and ABA biosynthe

SUBMITTER: Lu C 

PROVIDER: S-EPMC10441934 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature