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Review

Molecular Mechanisms of Nitric Oxide (NO) Signaling and Reactive Oxygen Species (ROS) Homeostasis during Abiotic Stresses in Plants

1
Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
2
Department of Biology, Wilfrid Laurier University, Waterloo, ON N2L 3C5, Canada
3
Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
4
Institute of Technology and Life Sciences, National Research Institute, Falenty, Al. Hrabska 3, 05-090 Raszyn, Poland
5
Department of Biology, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
*
Author to whom correspondence should be addressed.
Academic Editors: Tsanko Gechev and Veselin Petrov
Int. J. Mol. Sci. 2021, 22(17), 9656; https://doi.org/10.3390/ijms22179656
Received: 12 August 2021 / Revised: 1 September 2021 / Accepted: 2 September 2021 / Published: 6 September 2021
(This article belongs to the Special Issue ROS and Abiotic Stress in Plants 2.0)
Abiotic stressors, such as drought, heavy metals, and high salinity, are causing huge crop losses worldwide. These abiotic stressors are expected to become more extreme, less predictable, and more widespread in the near future. With the rapidly growing human population and changing global climate conditions, it is critical to prevent global crop losses to meet the increasing demand for food and other crop products. The reactive gaseous signaling molecule nitric oxide (NO) is involved in numerous plant developmental processes as well as plant responses to various abiotic stresses through its interactions with various molecules. Together, these interactions lead to the homeostasis of reactive oxygen species (ROS), proline and glutathione biosynthesis, post-translational modifications such as S-nitrosylation, and modulation of gene and protein expression. Exogenous application of various NO donors positively mitigates the negative effects of various abiotic stressors. In view of the multidimensional role of this signaling molecule, research over the past decade has investigated its potential in alleviating the deleterious effects of various abiotic stressors, particularly in ROS homeostasis. In this review, we highlight the recent molecular and physiological advances that provide insights into the functional role of NO in mediating various abiotic stress responses in plants. View Full-Text
Keywords: abiotic stress; nitric oxide (NO); drought stress; heavy metal stress; soil salinity; reactive oxygen species (ROS); plant stress abiotic stress; nitric oxide (NO); drought stress; heavy metal stress; soil salinity; reactive oxygen species (ROS); plant stress
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MDPI and ACS Style

Wani, K.I.; Naeem, M.; Castroverde, C.D.M.; Kalaji, H.M.; Albaqami, M.; Aftab, T. Molecular Mechanisms of Nitric Oxide (NO) Signaling and Reactive Oxygen Species (ROS) Homeostasis during Abiotic Stresses in Plants. Int. J. Mol. Sci. 2021, 22, 9656. https://doi.org/10.3390/ijms22179656

AMA Style

Wani KI, Naeem M, Castroverde CDM, Kalaji HM, Albaqami M, Aftab T. Molecular Mechanisms of Nitric Oxide (NO) Signaling and Reactive Oxygen Species (ROS) Homeostasis during Abiotic Stresses in Plants. International Journal of Molecular Sciences. 2021; 22(17):9656. https://doi.org/10.3390/ijms22179656

Chicago/Turabian Style

Wani, Kaiser I., M. Naeem, Christian D.M. Castroverde, Hazem M. Kalaji, Mohammed Albaqami, and Tariq Aftab. 2021. "Molecular Mechanisms of Nitric Oxide (NO) Signaling and Reactive Oxygen Species (ROS) Homeostasis during Abiotic Stresses in Plants" International Journal of Molecular Sciences 22, no. 17: 9656. https://doi.org/10.3390/ijms22179656

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