Results 11 to 20 of about 7,898 (228)

Erratum: Arabidopsis thaliana dehydroascorbate reductase 2: Conformational flexibility during catalysis. [PDF]

Sci Rep, 2017
Scientific Reports 7: Article number: 42494; published online: 14 February 2017; updated: 24 August 2017. The original Supplementary Information file published with this Article was incorrect. The correct Supplementary Information now accompanies the Article.
Bodra N, Young D, Rosado LA, Pallo A, Wahni K, De Proft F, Huang J, Van Breusegem F, Messens J.   +8 more
europepmc   +4 more sources

The presence of dehydroascorbate and dehydroascorbate reductase in plant tissues [PDF]

FEBS Letters, 1998
Ascorbate, an essential antioxidant in plant tissues, is oxidised to dehydroascorbate (DHA) via successive reversible single electron transfers with monodehydroascorbate (MDHA) as a free radical intermediate. Rapid regeneration of ascorbate from its oxidised forms is required to support antioxidant capacity.
Foyer, Christine H, Mullineaux, Philip M
openaire   +2 more sources

Dehydroascorbate and dehydroascorbate reductase are phantom indicators of oxidative stress in plants [PDF]

FEBS Letters, 1997
In many physiological studies dehydroascorbate (DHA) reductase is regarded as one of the chloroplast enzymes involved in the protection against oxidative stress. Here, evidence is presented that plant cells do not possess a specific DHA reductase. The DHA reductase activities measured in plant extracts are due to side reactions of proteins containing ...
Morell S., Follmann H., De Tullio M., Haberlein I.   +3 more
openaire   +3 more sources

The interplay between virus infection and water-related stress is mediated by the plant metabolism of ascorbic acid. [PDF]

New Phytol
Summary Plants are often subjected to environmental variations in the context of infection such that virus‐induced and abiotic stresses co‐occur. One such environmental variation is water stress, which strongly impacts plant fitness. Although there is ample evidence of the beneficial effects of plant viruses under drought, the consequences of infection
Jaime C, Montes N, Gil-Valle M, Dunger G, Pagán I.   +4 more
europepmc   +2 more sources

Dehydroascorbate Reductase Affects Leaf Growth, Development, and Function [PDF]

Plant Physiology, 2006
Abstract Ascorbic acid (Asc) is a major antioxidant in plants that detoxifies reactive oxygen species (ROS) and maintains photosynthetic function. Expression of dehydroascorbate reductase (DHAR), responsible for regenerating Asc from an oxidized state, regulates the cellular Asc redox state, which in turn affects cell responsiveness and ...
Zhong, Chen, Daniel R, Gallie
openaire   +2 more sources

Supplemental Ascorbate Diminishes DNA Damage Yet Depletes Glutathione and Increases Acute Liver Failure in a Mouse Model of Hepatic Antioxidant System Disruption

Antioxidants, 2021
Cellular oxidants are primarily managed by the thioredoxin reductase-1 (TrxR1)- and glutathione reductase (Gsr)-driven antioxidant systems. In mice having hepatocyte-specific co-disruption of TrxR1 and Gsr (TrxR1/Gsr-null livers), methionine catabolism ...
Colin G. Miller, Jean A. Kundert, Justin R. Prigge, Julie A. Amato, Allison E. Perez, Lucia Coppo, Gabrielle N. Rizzo, Michael P. Kavanaugh, David J. Orlicky, Colin T. Shearn, Edward E. Schmidt   +10 more
doaj   +1 more source

The mutualistic fungus Piriformospora indica protects barley roots from a loss of antioxidant capacity caused by the necrotrophic pathogen Fusarium culmorum [PDF]

, 2013
Fusarium culmorum causes root rot in barley (Hordeum vulgare), resulting in severely reduced plant growth and yield. Pretreatment of roots with chlamydospores of the mutualistic root-colonizing basidiomycete Piriformospora indica (Agaricomycotina ...
Balázs Barna, Borbála D. Harrach, Dolatabadi H. K., Halliwell B., Helmut Baltruschat, József Fodor, Karl-Heinz Kogel, Varma A.   +7 more
core   +1 more source

Effects of lanthanum on the antioxidant capacity of chloroplasts and chlorophyll fluorescence parameters of maize seedlings under chromium stress

Photosynthetica, 2019
Effects of lanthanum chloride (LaCl3) on chromium tolerance of maize were investigated at chloroplast level. The results showed that Cr stress significantly increased activities of ascorbate peroxidase, glutathione reductase, monodehydro-ascorbate ...
H. DAI, C. SHAN
doaj   +1 more source

Ascorbate peroxidase plays an important role in photoacclimation in the extremophilic red alga Cyanidiococcus yangmingshanensis

Frontiers in Plant Science, 2023
IntroductionAcidothermophilic cyanidiophytes in natural habitats can survive under a wide variety of light regimes, and the exploration and elucidation of their long-term photoacclimation mechanisms promises great potential for further biotechnological ...
Han-Yi Fu, Ming-Wei Wang
doaj   +1 more source

Imaging glutathione depletion in the rat brain using ascorbate-derived hyperpolarized MR and PET probes. [PDF]

, 2018
Oxidative stress is a critical feature of several common neurologic disorders. The brain is well adapted to neutralize oxidative injury by maintaining a high steady-state concentration of small-molecule intracellular antioxidants including glutathione in
Carroll, Valerie N, Flavell, Robert R, Keshari, Kayvan R, Kurhanewicz, John, Mutch, Christopher A, Qin, Hecong, Sriram, Renuka, Villanueva-Meyer, Javier E, von Morze, Cornelius, Wang, Zhen Jane, Wilson, David M   +10 more
core   +1 more source