Results 31 to 40 of about 4,782 (205)

Purification and Characterization of Dehydroascorbate Reductase from Rice [PDF]

Plant and Cell Physiology, 1997
Dehydroascorbate reductase (DHAR; EC 1.8.5.1) is an enzyme that is critical for maintenance of an appropriate level of ascorbate in plant cells. This report describes the purification and characterization of a GSH-dependent DHAR from rice (Oryza sativa) bran and is the first, to our knowledge, of such an analysis of DHAR from a monocot.
Y. Kato, J. Urano, Y. Maki, T. Ushimaru
openaire   +1 more source

Putrescine improves salt tolerance of wheat seedlings by regulating ascorbate and glutathione metabolism, photosynthetic performance, and ion homeostasis

Plant, Soil and Environment, 2023
To supply more insights into the roles of putrescine (Put) in alleviating salt stress in wheat crops, we explored the effects of Put on ascorbate (ASC) and glutathione metabolism, photosynthetic performance, and ion homeostasis in leaves of salt-stressed
Xinliang Zhao, Yibo Zhang, Xiaoqing Zhang, Changjuan Shan   +3 more
doaj   +1 more source

Exogenous salicylic acid enhances wheat drought tolerance by influence on the expression of genes related to ascorbate-glutathione cycle

Biologia Plantarum, 2013
Treatment with 0.5 mM salicylic acid (SA) significantly alleviated growth inhibition induced by drought in wheat seedlings, manifested by less decreassed fresh mass, dry mass, plant height, root length, and less increased lipid peroxidation.
G. Z. Kang, G. Z. Li, G. Q. Liu, W. Xu, X. Q. Peng, C. Y. Wang, Y. J. Zhu, T. C. Guo   +7 more
doaj   +1 more source

Heterologous Expression of Dehydroascorbate Reductase from Rice and Its Application to Determination of Dehydroascorbate Concentrations

Journal of Nutritional Science and Vitaminology, 2006
We constructed an expression vector for rice dehydroascorbate reductase (DHAR) (EC 1.8.5.4) with a polyhistidine tag at the amino terminus and introduced the vector into several strains of Escherichia coli. On conventional induction treatment with isopropylthiol-beta-D-galactoside, E. coli harboring rice DHAR cDNA produced doublet polypeptides of about
AMAKO, Katsumi, USHIMARU, Takashi, ISHIKAWA, Ayami, OGISHI, Yasuka, KISHIMOTO, Ritsuko, GODA, Kiyoshi   +5 more
openaire   +3 more sources

Cytosolic Dehydroascorbate Reductase is Important for Ozone Tolerance in Arabidopsisthaliana [PDF]

Plant and Cell Physiology, 2006
Dehydroascorbate reductase (DHAR) is a key component of the ascorbate recycling system. Three functional DHAR genes are encoded in the Arabidopsis genome. Ozone exposure increased the expression of the cytosolic DHAR (cytDHAR) gene alone. We characterized an Arabidopsis mutant with a deficient cytDHAR.
Seiji, Yoshida, Masanori, Tamaoki, Takeshi, Shikano, Nobuyoshi, Nakajima, Daisuke, Ogawa, Motohide, Ioki, Mitsuko, Aono, Akihiro, Kubo, Hiroshi, Kamada, Yasunori, Inoue, Hikaru, Saji   +10 more
openaire   +2 more sources

Nitric oxide acts downstream of hydrogen peroxide in the regulation of ascorbate and glutathione metabolism by jasmonic acid in Agropyron cristatum leaves

Biologia Plantarum, 2017
The relationship between hydrogen peroxide (H2O2) and nitric oxide (NO) in the regulation of ascorbate and glutathione metabolism by jasmonic acid (JA) in Agropyron cristatum leaves were studied.
C. Shan, T. Yang
doaj   +1 more source

A Systems Biology Study in Tomato Fruit Reveals Correlations between the Ascorbate Pool and Genes Involved in Ribosome Biogenesis, Translation, and the Heat-Shock Response

Frontiers in Plant Science, 2018
Changing the balance between ascorbate, monodehydroascorbate, and dehydroascorbate in plant cells by manipulating the activity of enzymes involved in ascorbate synthesis or recycling of oxidized and reduced forms leads to multiple phenotypes.
Rebecca G. Stevens, Pierre Baldet, Jean-Paul Bouchet, Mathilde Causse, Catherine Deborde, Catherine Deborde, Claire Deschodt, Mireille Faurobert, Cécile Garchery, Virginie Garcia, Hélène Gautier, Barbara Gouble, Mickaël Maucourt, Mickaël Maucourt, Annick Moing, Annick Moing, David Page, Johann Petit, Jean-Luc Poëssel, Vincent Truffault, Christophe Rothan   +20 more
doaj   +1 more source

Effect of Thallium(I) on Growth, Nutrient Absorption, Photosynthetic Pigments, and Antioxidant Response of Dittrichia Plants

Antioxidants, 2023
Dittrichia plants were exposed to thallium (Tl) stress (10, 50, and 100 µM) for 7 days. The Tl toxicity altered the absorption and accumulation of other nutrients.
Francisco Espinosa, Alfonso Ortega, Francisco L. Espinosa-Vellarino, Inmaculada Garrido   +3 more
doaj   +1 more source

Distribution of Dehydroascorbic Acid Reductase in the Wheat Grain [PDF]

Nature, 1964
Hopkins and Morgan1 showed that the juices of cauliflower and cabbage contain an enzyme which catalyses the reduction of dehydroascorbic acid (DHA) by glutathione (GSH). Crook2 determined the properties of this reductase and separated it from the associated ascorbic acid oxidase.
J. E. CARTER, J. PACE
openaire   +1 more source

Nitric oxide donor SNP regulates the ascorbate and glutathione metabolism in Agropyron cristatum leaves through MEK1/2

Biologia Plantarum, 2017
This study investigated the role of the protein kinase MEK1/2 in the regulation of ascorbate and glutathione metabolism by nitric oxide in Agropyron cristatum leaves.
C. Shan, N. Dong
doaj   +1 more source