The Central Role of GSNOR: Decoding Nitric Oxide Signaling for Crop Stress Tolerance.

ABSTRACT: S-nitrosoglutathione (GSNO) reductase (GSNOR) is a major and conserved enzyme in prokaryotes and eukaryotes. It reduces a stable nitric oxide (NO) reservoir, GSNO, to balance the organisms' redox status through S-nitrosylation. Over the last few decades, much of our understanding of GSNOR's roles in plant biology has been updated. Here, therefore, we review the current knowledge of GSNOR in plant physiology and signaling under abiotic and biotic stresses. We observe that the role of GSNOR in plant abiotic stress is widely studied in both model and crop plants, whereas studies on its role in biotic stress have mainly focused on model plants. Under abiotic stresses, GSNOR plays a pleiotropic role in terms of plant tolerance and sensitivity. The presence or absence of GSNOR activity modulates

SUBMITTER: Das AK 

PROVIDER: S-EPMC12692127 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature