Hydrogen peroxide and nitric oxide as signalling molecules in plants
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496
摘要：
It is now clear that hydrogen peroxide (H(2)O(2)) and nitric oxide (NO) function as signalling molecules in plants. A wide range of abiotic and biotic stresses results in H(2)O(2) generation, from a variety of sources. H(2)O(2) is removed from cells via a number of antioxidant mechanisms, both enzymatic and non-enzymatic. Both biotic and abiotic stresses can induce NO synthesis, but the biosynthetic origins of NO in plants have not yet been resolved. Cellular responses to H(2)O(2) and NO are complex, with considerable cross-talk between responses to several stimuli. In this review the potential roles of H(2)O(2) and NO during various stresses and the signalling pathways they activate are discussed. Key signalling components that might provide targets for enhancing crop production are also identified.
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关键词：
Reactive Oxygen Species Mitogen-Activated Protein Kinase Kinases Mitogen-Activated Protein Kinases Signal Transduction Apoptosis Gene Expression Regulation, Plant Hydrogen Peroxide Nitric Oxide Plants
DOI：
10.1093/jexbot/53.372.1237
被引量：
年份：
2002
Wiley
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万方医学
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