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Tytuł:
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Methylglyoxal - a signaling molecule in plant abiotic stress responses.
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Autorzy:
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Mostofa MG; Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh. Electronic address: .
Ghosh A; Department of Biochemistry and Molecular Biology, Shahjalal University of Science and Technology, Sylhet, Bangladesh. Electronic address: .
Li ZG; School of Life Sciences, Yunnan Normal University, Kunming 650500, PR China. Electronic address: zhongguang_.
Siddiqui MN; Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh. Electronic address: .
Fujita M; Laboratory of Plant Stress Responses, Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan. Electronic address: .
Tran LP; Plant Stress Research Group & Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam; Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan. Electronic address: .
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Źródło:
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Free radical biology & medicine [Free Radic Biol Med] 2018 Jul; Vol. 122, pp. 96-109. Date of Electronic Publication: 2018 Mar 12.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't; Review
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Język:
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English
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Imprint Name(s):
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Publication: Tarrytown, NY : Elsevier Science
Original Publication: New York : Pergamon, c1987-
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MeSH Terms:
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Metabolic Detoxication, Phase I*
Pyruvaldehyde/*metabolism
Reactive Oxygen Species/*metabolism
Stress, Physiological/*genetics
Antioxidants/metabolism ; Calcium Signaling/genetics ; Gene Expression Regulation, Plant ; Glycation End Products, Advanced/metabolism ; Glycolysis/genetics ; Metabolic Networks and Pathways/genetics ; Plants/genetics ; Plants/metabolism ; Pyruvaldehyde/chemistry
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Contributed Indexing:
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Keywords: Detoxification; Glyoxalase system; Methylglyoxal; Oxidative stress; Plant abiotic stress; Redox regulation; Signaling molecules
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Substance Nomenclature:
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0 (Antioxidants)
0 (Glycation End Products, Advanced)
0 (Reactive Oxygen Species)
722KLD7415 (Pyruvaldehyde)
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Entry Date(s):
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Date Created: 20180317 Date Completed: 20190719 Latest Revision: 20190719
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Update Code:
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20240104
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DOI:
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10.1016/j.freeradbiomed.2018.03.009
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PMID:
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29545071
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Abiotic stresses are the most common harmful factors, adversely affecting all aspects of plants' life. Plants have to elicit appropriate responses against multifaceted effects of abiotic stresses by reprogramming various cellular processes. Signaling molecules play vital roles in sensing environmental stimuli to modulate gene expression, metabolism and physiological processes in plants to cope with the adverse effects. Methylglyoxal (MG), a dicarbonyl compound, is known to accumulate in cells as a byproduct of various metabolic pathways, including glycolysis. Several works in recent years have demonstrated that MG could play signaling roles via Ca 2+ , reactive oxygen species (ROS), K + and abscisic acid. Recently, global gene expression profiling has shown that MG could induce signaling cascades, and an overlap between MG-responsive and stress-responsive signaling events might exist in plants. Once overaccumulated in cells, MG can provoke detrimental effects by generating ROS, forming advanced glycation end products and inactivating antioxidant systems. Plants are also equipped with MG-detoxifying glyoxalase system to save cellular organelles from MG toxicity. Since MG has regulatory functions in plant growth and development, and glyoxalase system is an integral component of abiotic stress adaptation, an in-depth understanding on MG metabolism and glyoxalase system will help decipher mechanisms underlying plant responses to abiotic stresses. Here, we provide a comprehensive update on the current knowledge of MG production and detoxification in plants, and highlight the putative functions of glyoxalase system in mediating plant defense against abiotic stresses. We particularly emphasize on the dual roles of MG and its connection with glutathione-related redox regulation, which is crucial for plant defense and adaptive responses under changing environmental conditions.
(Copyright © 2018 Elsevier Inc. All rights reserved.)