Nitric oxide function in plant biology: a redox cue in deconvolution

YU, M.; LAMATTINA, L.; SPOEL, S.H.; LOAKE, G.

NEW PHYTOLOGIST

WILEY-BLACKWELL PUBLISHING, INC

Año: 2014 vol. 202 p. 1142 - 1156

0028-646X

Nitric oxide (NO), a gaseous, redox-active small molecule, is gradually becoming established as acentral regulator of growth, development, immunity and environmental interactions in plants. Amajor route for the transfer of NO bioactivity is S-nitrosylation, the covalent attachment of anNO moiety to a protein cysteine thiol to form an S-nitrosothiol (SNO). This chemicaltransformation is rapidly emerging as a prototypic, redox-based post-translational modificationintegral to the life of plants. Here we review the myriad roles of NO and SNOs in plant biologyand, where known, the molecular mechanisms underpining their activity