Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Plant Nitric Oxide Signaling under Drought Stress

Version 1 : Received: 29 January 2021 / Approved: 29 January 2021 / Online: 29 January 2021 (12:14:53 CET)

A peer-reviewed article of this Preprint also exists.

Journal reference: Plants 2021, 10, 360
DOI: 10.3390/plants10020360

Abstract

Water deficit caused by drought is a significant threat to crop growth and production. Nitric oxide (NO), a water- and lipid-soluble free radical, plays an important role in cytoprotection. Apart from a few studies supporting the role of NO in drought responses, little is known about this pivotal molecular amendment in the regulation of abiotic stress signaling. In this review, we highlight the knowledge gaps in NO roles under drought stress and the technical challenges underlying NO detection and measurements, and we provide recommendations regarding potential avenues for future investigation. The modulation of NO production to alleviate abiotic stress disturbances in higher plants highlights the potential of genetic manipulation to influence NO metabolism as a tool with which plant fitness can be improved under adverse growth conditions.

Subject Areas

abiotic stress; crop improvement; drought; nitric oxide; S-nitrosylation; signaling molecule; water deficit

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