Results 31 to 40 of about 3,323 (193)

Monodehydroascorbate Reductase Plays a Role in the Tolerance of Chlamydomonas reinhardtii to Photooxidative Stress [PDF]

Plant and Cell Physiology, 2019
AbstractMonodehydroascorbate reductase (MDAR; EC 1.6.5.4) is one of the key enzymes in the conversion of oxidized ascorbate (AsA) back to reduced AsA in plants. This study investigated the role of MDAR in the tolerance of Chlamydomonas reinhardtii P.A. Dangeard to photooxidative stress by overexpression and downregulation of the CrMDAR1 gene.
Hui-Ling, Yeh, Tsen-Hung, Lin, Chi-Chih, Chen, Tian-Xing, Cheng, Hsin-Yang, Chang, Tse-Min, Lee   +5 more
openaire   +2 more sources

Ascorbate metabolism in vegetative and reproductive organs of "cherry" tomato

Horticultural Science, 2014
Ascorbate metabolism is an essential procedure for all plant cells that plays important roles in several physiological processes such as plant development and reactive oxygen species detoxification.
G. Tsaniklidis, N. Nikoloudakis, C. Delis, G. Aivalakis   +3 more
doaj   +1 more source

Monodehydroascorbate reductase activity in the surface membrane of leukemic cells [PDF]

European Journal of Biochemistry, 1993
A transmembrane monodehydroascorbate reductase activity with a high affinity in the subpicomolar concentration range of the free radical can be measured at the surface of erythroleukemic cells using a ferricyanide‐driven redox cycle. The activity is dependent on the membrane potential and can therefore only be found in intact cells.
E, Schweinzer, H, Goldenberg
openaire   +2 more sources

The expression of BrMDHAR gene in chloroplasts and mitochondria enhances tolerance to freezing stress in Arabidopsis thaliana

Biologia Plantarum, 2014
In chloroplasts and mitochondria, antioxidant mechanisms include the ascorbate-glutathione cycle, and monodehydroascorbate reductase (MDHAR) is important for regeneration of ascorbate (AsA) from monodehydroascorbate (MDHA).
S. Y. Shin, Y. S. Kim, I. S. Kim, Y. H. Kim, H. M. Park, H. S. Yoon   +5 more
doaj   +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

Changes in the ascorbate-glutathione system during storage of recalcitrant seeds of Acer saccharinum L.

Acta Societatis Botanicorum Poloniae, 2011
Two seed lots of Acer saccharinum (recalcitrant), with an initial moisture content of 50% and 55%, were stored at +3oC for 6 months. After this time, their viability (measured as germinability) reached 100% and 30%, respectively.
Ewelina Ratajczak, Stanisława Pukacka
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

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

Recent Developments in Enzymatic Antioxidant Defence Mechanism in Plants with Special Reference to Abiotic Stress

Biology, 2021
The stationary life of plants has led to the evolution of a complex gridded antioxidant defence system constituting numerous enzymatic components, playing a crucial role in overcoming various stress conditions.
Vishnu D. Rajput, Harish, Rupesh Kumar Singh, Krishan K. Verma, Lav Sharma, Francisco Roberto Quiroz-Figueroa, Mukesh Meena, Vinod Singh Gour, Tatiana Minkina, Svetlana Sushkova, Saglara Mandzhieva   +10 more
doaj   +1 more source

Physicochemical, enzymatic and molecular characterisation of the storage protein of aerial tuber, Dioscorea bulbifera Linn.

Journal of Genetic Engineering and Biotechnology, 2020
Background The storage protein of the aerial tuber of Dioscorea bulbifera was purified and its physicochemical, enzymatic and molecular properties determined with a view to comparing its functionality and genetic relatedness with other storage proteins ...
Olukemi Adetutu Osukoya, Adenike Kuku
doaj   +1 more source