Results 161 to 170 of about 4,782 (205)

Molecular mechanisms of high levels of L-ascorbic acid accumulation in chestnut rose fruits. [PDF]

Plant Commun
Li Y, Liu Z, Liao G, Huang Y, Liu S, Liu X, Wang S, Liu B, He C, Yang K, Xu Y, Zuo H, Fu J, Song L, Li R, Zheng Q, Zhang F, Lin Z, Ning G, Xie Z, Deng X, Wang X, Xu Q.   +22 more
europepmc   +1 more source

Scion-Rootstock Interactions Enhance Freezing Stress Resilience in <i>Citrus reticulata</i> Through Integrated Antioxidant Defense and Carbon-Nitrogen Metabolic Adjustments. [PDF]

Plants (Basel)
Asif A, Iqbal S, Aucique-Perez CE, Leaks K, Balal RM, Mattia M, Chater JM, Shahid MA.   +7 more
europepmc   +1 more source

Sowing Methods and Strigolactones Alleviate Damage to the Photosynthetic System of Rice Seedlings Under Salt Stress by Enhancing Antioxidant Capacity. [PDF]

Antioxidants (Basel)
Duan S, Zhao L, Chen W, Zhang Q, Ya J, Zhong W, Shang Q, Tu J, Xiang H, Zhang J, Zhang J.   +10 more
europepmc   +1 more source

Dehydroascorbate reductase from potato tubers

Phytochemistry, 1991
Abstract Dehydroascorbate reductase from the cytosol of potato tubers was purified to a nearly homogeneous state. The enzyme had a M r of ca 23 000, a pH optimum of ica 8, a K m for dehydroascorbate of 0.39 mM and a K m for GSH of 4.35 mM. GSH could not be replaced by other electron donors such as cysteine or dithiothreitol.
DIPIERRO, Silvio, BORRACCINO G.
exaly   +3 more sources

Localization of a GSH-Dependent Dehydroascorbate Reductase in Rat Tissues and Subcellular Fractions

Archives of Biochemistry and Biophysics, 1996
A novel GSH-dependent dehydroascorbate (DHA) reductase from rat liver cytosol has been recently purified and partially characterized in our laboratory. A further characterization study has been carried out in order to determine intracellular and tissue distribution of the enzyme.
Aldo Paolicchi, Simona Piaggi, Alessandro F Casini   +2 more
exaly   +5 more sources

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A spectrophotometric assay for dehydroascorbate reductase

Analytical Biochemistry, 1983
A simple spectrophotometric assay for dehydroascorbate reductase based on the change in absorbance associated with the formation of ascorbic acid is described. Using a partially purified preparation from spinach leaves, the reaction was found to be linear with time and enzyme concentration.
Leonard F Liebes, Robert Silber, R Silber   +2 more
exaly   +3 more sources

A reappraisal of leukocyte dehydroascorbate reductase

Biochimica Et Biophysica Acta - General Subjects, 1985
Dehydroascorbate reductase (glutathione:dehydroascorbate oxidoreductase, EC 1.8.5.1) activity was determined in human leukocyte homogenates using a direct spectrophotometric assay. Despite previous studies, using a less sensitive coupled assay, which reported that this enzyme was present in leukocytes, we found that neither neutrophil nor chronic ...
Leonard F Liebes, Robert Silber, R Silber   +2 more
exaly   +3 more sources

Human cell dehydroascorbate reductase. Kinetic and functional properties

Biochimica Et Biophysica Acta - Biomembranes, 1981
Dehydroascorbate reductase (glutathione: dehydroascorbate oxidoreductase, EC 1.8.5.1) activity was examined in crude cytosol extracts of human cells. In blood neutrophil and lymphocyte extracts, the Km at pH 6.85 for dehydroascorbate was 1.3 mM, and for reduced glutathione 3.8 mM. Rates of dehydroascorbate uptake by intact human neutrophils, monocytes,
Matthew C Riddle, Donald K Layman, L Stankova   +2 more
exaly   +3 more sources

Dehydroascorbate reductase and salt stress.

CABI Reviews, 2009
Abstract Salinity is the major environmental limiting factor of plant growth and productivity. Salt, as well as drought, chilling and extreme temperatures, increases the levels of reactive oxygen species (ROS). Excessive levels of ROS lead to oxidative damage to cellular molecules, ageing and cell death.
K. Amako, T. Ushimaru
openaire   +2 more sources