Front Plant Sci 11:617779īasu D, Haswell ES (2020) The mechanosensitive ion channel MSL10 potentiates responses to cell swelling in Arabidopsis seedlings. Int J Mol Sci 20(14):3432īabbar R, Karpinska B, Grover A, Foyer CH (2021) Heat-induced oxidation of the nuclei and cytosol. Annu Rev Plant Biol 55:373īaba AI, Andrási N, Valkai I, Gorcsa T, Koczka L, Darula Z et al (2019) AtCRK5 protein kinase exhibits a regulatory role in hypocotyl hook development during skotomorphogenesis. Cell Rep 35:109263Īpel K, Hirt H (2004) Reactive oxygen species: metabolism, oxidative stress, and signaling transduction. Nat Chem Biol 14(11):995–1004Īlbertos P et al (2021) Redox feedback regulation of ANAC089 signaling alters seed germination and stress response. Crit Rev Biotechnol 30(3):161–175Īkter S, Fu L, Jung Y, Conte ML, Lawson JR, Lowther WT et al (2018) Chemical proteomics reveals new targets of cysteine sulfinic acid reductase. Plant Sci 196:67–76Īhmad P, Jaleel CA, Salem MA, Nabi G, Sharma S (2010) Roles of enzymatic and nonenzymatic antioxidants in plants during abiotic stress. KeywordsĪgati G, Azzarello E, Pollastri S, Tattini M (2012) Flavonoids as antioxidants in plants: location and functional significance. Furthermore, cutting-edge molecular strategies for ROS-mediated enhancement of plant antioxidant defence during abiotic stress adaption will be explored. The harmful effects of ROS, antioxidant defence systems involved in ROS detoxification under various abiotic stresses, and molecular crosstalk with other important signalling molecules such as reactive nitrogen, sulphur, and carbonyl species will all be discussed in this chapter. Despite the high level of interest in this field, it is relatively unexplored, and our understanding of ROS signalling is limited. Plants under stress can even maintain the balance between detoxification and ROS generation that is controlled by the enzymatic and non-enzymatic defence systems. Abiotic stress disrupts the equilibrium between ROS production and antioxidant defence mechanisms, causing excessive ROS to build up and oxidative stress in plants. Furthermore, in higher plants, the creation of ROS is a critical mechanism that transfers cellular signalling information in response to changing environmental circumstances. Abiotic stress causes plant cells to create oxygen radicals and their derivatives, known as reactive oxygen species (ROS). The global climatic factors and abiotic stressors such as extreme temperatures, salinity, droughts, and heavy metal contamination have all had a significant impact on plant growth and development, influencing crop output and quality, as well as agriculture’s long-term viability. Most controlled studies have verified that the clinical efficacy from HBO2 derives from modulation of intracellular transduction cascades, leading to synthesis of growth factors and promoting wound healing and ameliorating post-ischemic and post-inflammatory injuries.In the environment, plant growth is affected and controlled by various biotic and abiotic factors. High O2 partial pressures in various tissues increase the production of reactive O2 species (ROS) and also of reactive nitrogen species (RNS) because of hyperoxia. However, the majority of patients treated with HBO2 do not suffer from bubble-induced injuries, but derive clinical improvements from the elevated O2 partial pressures. This last mechanism contributes to a compression of all gas-filled spaces in the body (Boyle's Law) and is relevant to treat conditions where gas bubbles are present in the body and cause the disease (e.g., intravascular embolism decompression sickness with intravascular or intra-tissue bubbles). Therapeutic mechanisms of action for hyperbaric oxygen (HBO2) therapy are based on elevation of both the partial pressure of inspired O2 and of the hydrostatic pressure.
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