Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 24, Issue 3, Pages 2273-2285Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-016-7947-8
Keywords
Abiotic stress; Heavy metal; Nitric oxide; Oxidative stress; Phytohormones
Categories
Funding
- Department of Biotechnology (DBT), New Delhi, under the DBT-BUILDER programme [BT/PR4872/INF/22/150/2012]
- ERDF from the Ministry of Science and Innovation [Recupera 2020-20134R056, AGL2015-65104-P]
- Junta de Andalucia [BIO192]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq-grant) [442045/2014-0]
- Sao Paulo Research Foundation (FAPESP-grant) [2013/18056-2]
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Nitric oxide (NO) is a free radical molecule involved in an array of functions under physiological and adverse environmental conditions. As other free radical molecules, NO biological action depends on its cellular concentration, acting as a signal molecule when produced at low concentration or resulting in cellular damage when produced at sufficiently high levels to trigger nitro-oxidative stress. Over the last decade, significant progress has been made in characterizing NO metabolism and action mechanism, revealing that diverse biosynthetic routes can generate this free radical in plants and its action mainly occurs through posttranslational modification (nitration and S-nitrosylation) of target proteins. Intricate crosstalk networks between NO and other signaling molecules have been described involving phytohormones, other second messengers, and key transcription factors. This review will focus on our current understanding of NO interplay with phytohormones and other plant growth regulators under abiotic stress conditions.
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