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Bibliographies thématiques / MDHAR

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Articles de revues

Littérature scientifique sur le sujet « MDHAR »

Auteur : Grafiati

Publié le 17 novembre 2023

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Articles de revues sur le sujet "MDHAR"

1

Vanacker, Hélène, Marjorie Guichard, Anne-Sophie Bohrer, and Emmanuelle Issakidis-Bourguet. "Redox Regulation of Monodehydroascorbate Reductase by Thioredoxin y in Plastids Revealed in the Context of Water Stress." Antioxidants 7, no. 12 (2018): 183. http://dx.doi.org/10.3390/antiox7120183.

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Thioredoxins (TRXs) are key players within the complex response network of plants to environmental constraints. Here, the physiological implication of the plastidial y-type TRXs in Arabidopsis drought tolerance was examined. We previously showed that TRXs y1 and y2 have antioxidant functions, and here, the corresponding single and double mutant plants were studied in the context of water deprivation. TRX y mutant plants showed reduced stress tolerance in comparison with wild-type (WT) plants that correlated with an increase in their global protein oxidation levels. Furthermore, at the level of

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Zhou, Fangfang, Bowen Zheng, Fei Wang, et al. "Genome-Wide Analysis of MDHAR Gene Family in Four Cotton Species Provides Insights into Fiber Development via Regulating AsA Redox Homeostasis." Plants 10, no. 2 (2021): 227. http://dx.doi.org/10.3390/plants10020227.

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Monodehydroasorbate reductase (MDHAR) (EC1.6.5.4), a key enzyme in ascorbate-glutathione recycling, plays important roles in cell growth, plant development and physiological response to environmental stress via control of ascorbic acid (AsA)-mediated reduction/oxidation (redox) regulation. Until now, information regarding MDHAR function and regulatory mechanism in Gossypium have been limited. Herein, a genome-wide identification and comprehensive bioinformatic analysis of 36 MDHAR family genes in four Gossypium species, Gossypium arboreum, G. raimondii, G. hirsutum, and G. barbadense, were per

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Park, Ae Kyung, Il-Sup Kim, Hackwon Do, et al. "Characterization and Structural Determination of Cold-Adapted Monodehydroascorbate Reductase, MDHAR, from the Antarctic Hairgrass Deschampsia Antarctica." Crystals 9, no. 10 (2019): 537. http://dx.doi.org/10.3390/cryst9100537.

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Ascorbic acid (AsA) is an abundant component of plants and acts as a strong and active antioxidant. In order to maintain the antioxidative capacity of AsA, the rapid regeneration of AsA is regulated by dehydroascorbate reductase (DHAR) and monodehydroascorbate reductase (MDHAR). To understand how MDHAR functions under extreme temperature conditions, this study characterized its biochemical properties and determined the crystal structure of MDHAR from the Antarctic hairgrass Deschampsia antarctica (DaMDHAR) at 2.2 Å resolution. This allowed for a structural comparison with the mesophilic MDHAR

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Do, Hackwon, Il-Sup Kim, Young-Saeng Kim, et al. "Purification, characterization and preliminary X-ray crystallographic studies of monodehydroascorbate reductase fromOryza sativaL.japonica." Acta Crystallographica Section F Structural Biology Communications 70, no. 9 (2014): 1244–48. http://dx.doi.org/10.1107/s2053230x14015908.

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Monodehydroascorbate reductase (MDHAR; EC 1.6.5.4) is a key enzyme in the reactive oxygen species (ROS) detoxification system of plants. The participation of MDHAR in ascorbate (AsA) recycling in the ascorbate–glutathione cycle is important in the acquired tolerance of crop plants to abiotic environmental stresses. Thus, MDHAR represents a strategic target protein for the improvement of crop yields. Although physiological studies have intensively characterized MDHAR, a structure-based functional analysis is not available. Here, a cytosolic MDHAR (OsMDHAR) derived fromOryza sativaL.japonicawas

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Truffault, Vincent, Noé Gest, Cécile Garchery, et al. "Reduction of MDHAR activity in cherry tomato suppresses growth and yield and MDHAR activity is correlated with sugar levels under high light." Plant, Cell & Environment 39, no. 6 (2016): 1279–92. http://dx.doi.org/10.1111/pce.12663.

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Yoon, Seo-Kyung, Eung-Jun Park, Eun-Kyung Bae, Young-Im Choi, Joon-Hyeok Kim, and Hyoshin Lee. "Isolation and characterization of a monodehydroascorbate reductase gene in poplar (Populus alba × P. glandulosa)." Journal of Plant Biotechnology 41, no. 4 (2014): 194–200. http://dx.doi.org/10.5010/jpb.2014.41.4.194.

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Maynard, Daniel, Vijay Kumar, Jens Spro� та Karl-Josef Dietz. "12-Oxophytodienoic Acid Reductase 3 (OPR3) Functions as NADPH-Dependent α,β-Ketoalkene Reductase in Detoxification and Monodehydroascorbate Reductase in Redox Homeostasis". Plant and Cell Physiology 61, № 3 (2019): 584–95. http://dx.doi.org/10.1093/pcp/pcz226.

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Abstract Arabidopsis (Arabidopsis thaliana) 12-oxophytodienoic acid reductase isoform 3 (OPR3) is involved in the synthesis of jasmonic acid (JA) by reducing the α,β-unsaturated double bond of the cyclopentenone moiety in 12-oxophytodienoic acid (12-OPDA). Recent research revealed that JA synthesis is not strictly dependent on the peroxisomal OPR3. The ability of OPR3 to reduce trinitrotoluene suggests that the old yellow enzyme homolog OPR3 has additional functions. Here, we show that OPR3 catalyzes the reduction of a wide spectrum of electrophilic species that share a reactivity toward the m

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Lunde, Christina, Ute Baumann, Neil J. Shirley, Damian P. Drew, and Geoffrey B. Fincher. "Gene Structure and Expression Pattern Analysis of Three Monodehydroascorbate Reductase (Mdhar) Genes in Physcomitrella patens: Implications for the Evolution of the MDHAR Family in Plants*." Plant Molecular Biology 60, no. 2 (2006): 259–75. http://dx.doi.org/10.1007/s11103-005-3881-8.

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Acosta-Motos, José Ramón, Laura Noguera-Vera, Gregorio Barba-Espín, Abel Piqueras, and José A. Hernández. "Antioxidant Metabolism and Chlorophyll Fluorescence during the Acclimatisation to Ex Vitro Conditions of Micropropagated Stevia rebaudiana Bertoni Plants." Antioxidants 8, no. 12 (2019): 615. http://dx.doi.org/10.3390/antiox8120615.

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In this study, the functioning of antioxidant metabolism and photosynthesis efficiency during the acclimatisation of Stevia rebaudiana plants to ex vitro conditions was determined. A high percentage of acclimatised plants (93.3%) was obtained after four weeks. According to the extent of lipid peroxidation, an oxidative stress occurred during the first hours of acclimatisation. A lower activity of monodehydroascorbate reductase (MDHAR) than dehydroascorbate reductase (DHAR) was observed after 2 days of acclimatisation. However, after 7 days of acclimatisation, stevia plants activated the MDHAR

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Liu, Xiumei, Lu Wang, Haoran Cui, et al. "Effects of magnetic treatment on the ascorbate–glutathione cycle and endogenous hormone levels in Populus × euramericana ‘Neva’ under cadmium stress." Canadian Journal of Forest Research 49, no. 9 (2019): 1147–58. http://dx.doi.org/10.1139/cjfr-2018-0466.

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Cadmium (Cd) contamination in soil has become a serious worldwide environmental and health problem. Cd is easily taken up by plants and translocated to aboveground tissues. A pot experiment was carried out to explore the role of the ascorbate–glutathione (AsA–GSH) cycle and endogenous hormones in enhancing Cd tolerance and promoting translocation of Cd in one-year-old seedlings of Populus × euramericana ‘Neva’. The antioxidant substances ascorbic acid (AsA), dehydroascorbic acid (DHA), glutathione (GSH), and oxidized glutathione (GSSG); the activities of the antioxidant enzymes ascorbic acid p

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