Tomato fruit ascorbic acid content is linked with monodehydroascorbate reductase activity and tolerance to chilling stress [PDF]
Plant, Cell & Environment, 2008 ABSTRACTQuantitative trait loci (QTL) mapping is a step towards the identification of factors regulating traits such as fruit ascorbic acid content. A previously identified QTL controlling variations in tomato fruit ascorbic acid has been fine mapped and reveals that the QTL has a polygenic and epistatic architecture.
Stevens, Rebecca +5 more
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Peroxisomal Monodehydroascorbate Reductase. Genomic Clone Characterization and Functional Analysis under Environmental Stress Conditions [PDF]
Plant Physiology, 2005 Abstract In plant cells, ascorbate is a major antioxidant that is involved in the ascorbate-glutathione cycle. Monodehydroascorbate reductase (MDAR) is the enzymatic component of this cycle involved in the regeneration of reduced ascorbate.
Leterrier, Marina +4 more
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Oxidative stress induced expression of monodehydroascorbate reductase gene in Eleusine coracana. [PDF]
Physiol Mol Biol Plants, 2015 Abiotic stresses constitute a serious threats to the world food security as they cause significant economic losses in terms of reduction in crop productivity and also greatly limit the geographical locations where crops can be grown. Exposure to abiotic stress causes over-production of reactive oxygen species, leading to oxidative stress in plants ...
Sudan J, Negi B, Arora S, Arora S.
europepmc +4 more sources
Structure and catalytic mechanism of monodehydroascorbate reductase, MDHAR, from Oryza sativa L. japonica. [PDF]
Sci Rep, 2016 AbstractAscorbic acid (AsA) maintains redox homeostasis by scavenging reactive oxygen species from prokaryotes to eukaryotes, especially plants. The enzyme monodehydroascorbate reductase (MDHAR) regenerates AsA by catalysing the reduction of monodehydroascorbate, using NADH or NADPH as an electron donor.
Park AK +12 more
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Potential Application of the Oryza sativa Monodehydroascorbate Reductase Gene (OsMDHAR) to Improve the Stress Tolerance and Fermentative Capacity of Saccharomyces cerevisiae. [PDF]
PLoS One, 2016 Monodehydroascorbate reductase (MDHAR; EC 1.6.5.4) is an important enzyme for ascorbate recycling. To examine whether heterologous expression of MDHAR from Oryza sativa (OsMDHAR) can prevent the deleterious effects of unfavorable growth conditions, we ...
Kim IS +6 more
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Monodehydroascorbate reductase (NADH)
, 1994 D. Schomburg, M. Salzmann, D. Stephan
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A Direct Demonstration of the Catalytic Action of Monodehydroascorbate Reductase by Pulse Radiolysis [PDF]
Journal of Biological Chemistry, 1995 To elucidate the catalytic mechanism of monodehydroascorbate (MDA) reductase from cucumber, its interaction with MDA radical was investigated by the use of pulse radiolysis. When approximately equimolar MDA radical to the fully reduced MDA reductase was generated, the fully reduced enzyme reacted first with MDA radical to form the red semiquinone, and ...
K, Kobayashi +3 more
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Properties of Monodehydroascorbate Reductase and Dehydroascorbate Reductase and Their Participation in the Regeneration of Ascorbate in Euglena gracilis [PDF]
Microbiology, 1987 The partially purified monodehydroascorbate reductase (EC 1.6.5.4) from Euglena gracilis Z showed a pH optimum of 7.0 and a temperature optimum of 41 °C, and had an M r of 52000. Activity was threefold higher with N ADPH than with N ADH; the K m values for N ADPH and NADH were 7 and 210 μm, respectively.
S. Shigeoka +4 more
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Impact of cadmium and hydrogen peroxide on ascorbate-glutathione recycling enzymes in barley root
Plant, Soil and Environment, 2013 We analyse the effect of Cd and H2O2 short-term treatments on the activity of ascorbate-glutathione recycling enzymes in barley root tip. Even a short transient exposure of barley roots to low 15 µmol Cd concentration caused a marked approximately 70 ...
V. Zelinová +4 more
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