Assessment of Subcellular ROS and NO Metabolism in Higher Plants: Multifunctional Signaling Molecules

Kohli, Sukhmeen Kaur; Khanna, Kanika; Bhardwaj, Renu; Abd_Allah, Elsayed Fathi; Ahmad, Parvaiz; Corpas, Francisco J.

doi:10.3390/antiox8120641

Cited by 359 publications

(182 citation statements)

References 190 publications

(201 reference statements)

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“…In plant cells, chloroplasts, mitochondria, peroxisomes, plasma membrane, and cell wall are the major locations of ROS generation [ 38 , 39 ]. Therefore, compartmental ROS generation amounts to its overall production in plants ( Figure 3 ) [ 6 , 40 ].…”

Section: Localization and Processes Of The Generation Of Ros In Plmentioning

confidence: 99%

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

et al. 2020

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Global climate change and associated adverse abiotic stress conditions, such as drought, salinity, heavy metals, waterlogging, extreme temperatures, oxygen deprivation, etc., greatly influence plant growth and development, ultimately affecting crop yield and quality, as well as agricultural sustainability in general. Plant cells produce oxygen radicals and their derivatives, so-called reactive oxygen species (ROS), during various processes associated with abiotic stress. Moreover, the generation of ROS is a fundamental process in higher plants and employs to transmit cellular signaling information in response to the changing environmental conditions. One of the most crucial consequences of abiotic stress is the disturbance of the equilibrium between the generation of ROS and antioxidant defense systems triggering the excessive accumulation of ROS and inducing oxidative stress in plants. Notably, the equilibrium between the detoxification and generation of ROS is maintained by both enzymatic and nonenzymatic antioxidant defense systems under harsh environmental stresses. Although this field of research has attracted massive interest, it largely remains unexplored, and our understanding of ROS signaling remains poorly understood. In this review, we have documented the recent advancement illustrating the harmful effects of ROS, antioxidant defense system involved in ROS detoxification under different abiotic stresses, and molecular cross-talk with other important signal molecules such as reactive nitrogen, sulfur, and carbonyl species. In addition, state-of-the-art molecular approaches of ROS-mediated improvement in plant antioxidant defense during the acclimation process against abiotic stresses have also been discussed.

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Section: Localization and Processes Of The Generation Of Ros In Plmentioning

confidence: 99%

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

et al. 2020

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“…activity, leading to an increase in cellular H 2 O 2 which acts as a signaling molecule (Zhang et al, 2016;Kohli et al, 2019). Another sophisticated mechanism, involving the interaction of the γb protein from the barley stripe mosaic virus with GOX, has been reported to inhibit GOX and to facilitate infection with the virus (Yang et al, 2018).…”

Section: Peroxisomal Ros Metabolismmentioning

confidence: 99%

“… Zhang et al (2016) have described an elegant dynamic physical GOX-catalase association-dissociation mechanism that fine-tunes peroxisomal H 2 O 2 in rice plants. Although peroxisomal H 2 O 2 is kept under control when GOX and catalase are associated, under stress conditions and when mediated by salicylic acid (SA), this complex GOX-catalase dissociation mechanism inhibits catalase activity, leading to an increase in cellular H 2 O 2 which acts as a signaling molecule ( Zhang et al, 2016 ; Kohli et al, 2019 ). Another sophisticated mechanism, involving the interaction of the γb protein from the barley stripe mosaic virus with GOX, has been reported to inhibit GOX and to facilitate infection with the virus ( Yang et al, 2018 ).…”

Section: Peroxisomal Ros Metabolismmentioning

confidence: 99%

Plant Peroxisomes: A Factory of Reactive Species

2020

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Plant peroxisomes are organelles enclosed by a single membrane whose biochemical composition has the capacity to adapt depending on the plant tissue, developmental stage, as well as internal and external cellular stimuli. Apart from the peroxisomal metabolism of reactive oxygen species (ROS), discovered several decades ago, new molecules with signaling potential, including nitric oxide (NO) and hydrogen sulfide (H 2 S), have been detected in these organelles in recent years. These molecules generate a family of derived molecules, called reactive nitrogen species (RNS) and reactive sulfur species (RSS), whose peroxisomal metabolism is autoregulated through posttranslational modifications (PTMs) such as S-nitrosation, nitration and persulfidation. The peroxisomal metabolism of these reactive species, which can be weaponized against pathogens, is susceptible to modification in response to external stimuli. This review aims to provide up-to-date information on crosstalk between these reactive species families and peroxisomes, as well as on their cellular environment in light of the well-recognized signaling properties of H 2 O 2 , NO and H 2 S.

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“…ROS are produced in all forms of aerobic life under stress or normal conditions. The production of ROS cause oxidative damage that has a negative impact on the role of important macromolecules [ 9 ]. Plants produce compatible osmolytes such as proline and soluble sugars, which help the plants under stress in osmotic adjustment [ 8 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…The overproduction of O 2 ● − is regulated by the stromal and thylakoid-bound SODs, which convert it into H 2 O 2 , which, in turn, is converted into H 2 O by APX and CAT. POD in the cytosol and peroxisomes effectively remove H 2 O 2 from the surrounding of the chloroplast [ 9 , 17 ]. Several reports mention that these antioxidant enzymes have a positive correlation with plant tolerance in drought and salt stress [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of an Antioxidative System for Salinity Tolerance in Oenanthe javanica

Kumar

Yang

et al. 2020

Antioxidants

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Abiotic stress, such as drought and salinity, severely affect the growth and yield of many plants. Oenanthe javanica (commonly known as water dropwort) is an important vegetable that is grown in the saline-alkali soils of East Asia, where salinity is the limiting environmental factor. To study the defense mechanism of salt stress responses in water dropwort, we studied two water dropwort cultivars, V11E0022 and V11E0135, based on phenotypic and physiological indexes. We found that V11E0022 were tolerant to salt stress, as a result of good antioxidant defense system in the form of osmolyte (proline), antioxidants (polyphenols and flavonoids), and antioxidant enzymes (APX and CAT), which provided novel insights for salt-tolerant mechanisms. Then, a comparative transcriptomic analysis was conducted, and Gene Ontology (GO) analysis revealed that differentially expressed genes (DEGs) involved in the carbohydrate metabolic process could reduce oxidative stress and enhance energy production that can help in adaptation against salt stress. Similarly, lipid metabolic processes can also enhance tolerance against salt stress by reducing the transpiration rate, H2O2, and oxidative stress. Furthermore, the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that DEGs involved in hormone signals transduction pathway promoted the activities of antioxidant enzymes and reduced oxidative stress; likewise, arginine and proline metabolism, and flavonoid pathways also stimulated the biosynthesis of proline and flavonoids, respectively, in response to salt stress. Moreover, transcription factors (TFs) were also identified, which play an important role in salt stress tolerance of water dropwort. The finding of this study will be helpful for crop improvement under salt stress.

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Assessment of Subcellular ROS and NO Metabolism in Higher Plants: Multifunctional Signaling Molecules

Cited by 359 publications

References 190 publications

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

Plant Peroxisomes: A Factory of Reactive Species

Investigation of an Antioxidative System for Salinity Tolerance in Oenanthe javanica

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