Extracellular nitric oxide sustains root surface redox activity and growth under sudden flooding-induced hypoxic conditions in barley root tips.

ABSTRACT:

Main conclusion

Nitric oxide sustains root tip surface redox activity and restricts lipid peroxidation-triggered cell death in the root tips. In order to gain more insight into the involvement of nitric oxide (NO) in plant response to sudden flooding-induced hypoxic stress, we studied the effect of two NO donors, sodium nitroprusside and S-nitroso-L-glutathione, on short-term partial submergence-induced root growth inhibition, alteration in root surface redox activity, lipid peroxidation and cell death in two barley cultivars (cv.) at their early seedling stage. The short-term hypoxic stress induces root growth arrest in cv. Karmel, accompanied by increased lipid peroxidation and cell death. By contrast, in cv. Slaven, short-term hypoxic conditions cause only reduced root growth ra

SUBMITTER: Zelinova V 

PROVIDER: S-EPMC10663193 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature