Nitric oxide as a key component in hormone-regulated processes

Nitric oxide (NO) is a small gaseous molecule, with a free radical nature that allows it to participate in a wide spectrum of biologically important reactions. NO is an endogenous product in plants, where different biosynthetic pathways have been proposed. First known in animals as a signaling molec...

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Bibliographic Details
Published in:Plant cell reports 2013-06, Vol.32 (6), p.853-866
Main Authors: Simontacchi, Marcela, García-Mata, Carlos, Bartoli, Carlos G, Santa-María, Guillermo E, Lamattina, Lorenzo
Format: Article
Language:English
Subjects:
abscisic acid
Abscisic Acid - metabolism
animals
Arabidopsis - growth & development
Arabidopsis - metabolism
Arabidopsis - physiology
auxins
biochemical pathways
Biomedical and Life Sciences
Biotechnology
carbon dioxide
Cell Biology
Cellular Senescence
ethylene
Ethylenes - metabolism
gibberellins
Gibberellins - metabolism
Indoleacetic Acids - metabolism
Life Sciences
nitric oxide
Nitric Oxide - metabolism
Plant Biochemistry
Plant Development
plant growth
Plant Growth Regulators - metabolism
Plant Physiological Phenomena
Plant Sciences
Plant Stomata - growth & development
Plant Stomata - metabolism
Plant Stomata - physiology
Plants - metabolism
Review
senescence
Signal Transduction - physiology
stomatal movement
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Summary:Nitric oxide (NO) is a small gaseous molecule, with a free radical nature that allows it to participate in a wide spectrum of biologically important reactions. NO is an endogenous product in plants, where different biosynthetic pathways have been proposed. First known in animals as a signaling molecule in cardiovascular and nervous systems, it has turned up to be an essential component for a wide variety of hormone-regulated processes in plants. Adaptation of plants to a changing environment involves a panoply of processes, which include the control of CO₂ fixation and water loss through stomatal closure, rearrangements of root architecture as well as growth restriction. The regulation of these processes requires the concerted action of several phytohormones, as well as the participation of the ubiquitous molecule NO. This review analyzes the role of NO in relation to the signaling pathways involved in stomatal movement, plant growth and senescence, in the frame of its interaction with abscisic acid, auxins, gibberellins, and ethylene.
ISSN:0721-7714
1432-203X
DOI:10.1007/s00299-013-1434-1