Signalling Molecules and Abiotic Stress

The mechanisms by which NO is generated are still largely unresolved and elucidation of how it is made by different plant cells in different situations is clearly a research priority. No doubt, NO a ubiquitous bioactive molecule, plays an important role in a broad spectrum of multiple H2O2 mediating physiological processes in plants. NO and H2O2 have now been shown to function as synergistic signals in plants mediating a range of responses to abiotic stresses.