Nitric oxide signaling and its crosstalk with other plant growth regulators in plant responses to abiotic stress

Author(s)

Asgher, Mohd ; Per, Tasir S. ; Masood, Asim ; Fatma, Mehar ; Freschi, Luciano ; Corpas, Francisco J. ; Khan, Nafees A.

• Document type: Review article
• Source: Environmental Science and Pollution Research; v. 24, n. 3, p. 2273-2285, JAN 2017.
• Web of Science Citations: 27

Abstract

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. (AU)

• FAPESP's process: 13/18056-2 - Interaction between light, hormonal and nitric oxide signaling during plastidial biogenesis and differentiation and nutraceutical compounds accumulation in tomato fruits
• Grantee: Luciano Freschi
• Support Opportunities: Regular Research Grants