Nitric oxide buffering and conditional nitric oxide release in stress response

被引:89
作者
Begara-Morales, Juan C. [1 ]
Chaki, Mounira [1 ]
Valderrama, Raquel [1 ]
Sanchez-Calvo, Beatriz [1 ]
Mata-Perez, Capilla [1 ]
Padilla, Maria N. [1 ]
Corpas, Francisco J. [2 ]
Barroso, Juan B. [1 ]
机构
[1] Univ Jaen, Grp Biochem & Cell Signaling Nitr Oxide, Ctr Adv Studies Olive Grove & Olive Oils, Dept Expt Biol,Fac Expt Sci, Campus Univ Las Lagunillas S-N, E-23071 Jaen, Spain
[2] CSIC, Grp Antioxidants Free Rad & Nitr Oxide Biotechnol, Dept Biochem Cellular & Mol Biol Plants, Estn Expt Zaidin, Granada, Spain
关键词
nitric oxide; nitric oxide signalling; plant stress; S-nitrosoglutathione; S-NITROSOGLUTATHIONE REDUCTASE; ASCORBATE-GLUTATHIONE CYCLE; NITROSATIVE STRESS; PROTEIN DENITROSYLATION; NITRATE REDUCTASE; IN-VITRO; NITROSYLATED PROTEINS; ARABIDOPSIS-THALIANA; TYROSINE NITRATION; JASMONIC ACID;
D O I
10.1093/jxb/ery072
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Nitric oxide (NO) has emerged as an essential biological messenger in plant biology that usually transmits its bioactivity by post-translational modifications such as S-nitrosylation, the reversible addition of an NO group to a protein cysteine residue leading to S-nitrosothiols (SNOs). In recent years, SNOs have risen as key signalling molecules mainly involved in plant response to stress. Chief among SNOs is S-nitrosoglutathione (GSNO), generated by S-nitrosylation of the key antioxidant glutathione (GSH). GSNO is considered the major NO reservoir and a phloem mobile signal that confers to NO the capacity to be a long-distance signalling molecule. GSNO is able to regulate protein function and gene expression, resulting in a key role for GSNO in fundamental processes in plants, such as development and response to a wide range of environmental stresses. In addition, GSNO is also able to regulate the total SNO pool and, consequently, it could be considered the storage of NO in cells that may control NO signalling under basal and stress-related responses. Thus, GSNO function could be crucial during plant response to environmental stresses. Besides the importance of GSNO in plant biology, its mode of action has not been widely discussed in the literature. In this review, we will first discuss the GSNO turnover in cells and secondly the role of GSNO as a mediator of physiological and stress-related processes in plants, highlighting those aspects for which there is still some controversy.
引用
收藏
页码:3425 / 3438
页数:14
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