Results 11 to 20 of about 3,323 (193)

Distribution and Functions of Monodehydroascorbate Reductases in Plants: Comprehensive Reverse Genetic Analysis of Arabidopsis thaliana Enzymes [PDF]

Antioxidants, 2021
Monodehydroascorbate reductase (MDAR) is an enzyme involved in ascorbate recycling. Arabidopsis thaliana has five MDAR genes that encode two cytosolic, one cytosolic/peroxisomal, one peroxisomal membrane-attached, and one chloroplastic/mitochondrial ...
Mio Tanaka, Ryuki Takahashi, Akane Hamada, Yusuke Terai, Takahisa Ogawa, Yoshihiro Sawa, Takahiro Ishikawa, Takanori Maruta   +7 more
doaj   +4 more sources

Monodehydroascorbate reductase mediates TNT toxicity in plants [PDF]

Science, 2015
Bioremediation from disabled self-destructionExplosives used in mining, construction, or military operations leave behind contaminated soils. Although bioremediation could help, plants do not thrive on these soils. Johnstonet al.have now found out why (see the Perspective by Noctor).
Johnston, Emily J., Rylott, Elizabeth L., Beynon, Emily, Lorenz, Astrid, Chechik, Victor, Bruce, Neil C.   +5 more
openaire   +3 more sources

Light‐dependent regulation of ascorbate in tomato by a monodehydroascorbate reductase localized in peroxisomes and the cytosol [PDF]

Plant Biotechnology Journal, 2012
SummaryAscorbate is a powerful antioxidant in plants, and its levels are an important quality criteria in commercial species. Factors influencing these levels include environmental variations, particularly light, and the genetic control of its biosynthesis, recycling and degradation.
Gest, Noé, Garchery, Cecile, Gautier, Hélène, Jimenez, Ana, Stevens, Rebecca   +4 more
openaire   +4 more sources

Characterization and Structural Determination of Cold-Adapted Monodehydroascorbate Reductase, MDHAR, from the Antarctic Hairgrass Deschampsia Antarctica

Crystals, 2019
Ascorbic acid (AsA) is an abundant component of plants and acts as a strong and active antioxidant. In order to maintain the antioxidative capacity of AsA, the rapid regeneration of AsA is regulated by dehydroascorbate reductase (DHAR) and ...
Ae Kyung Park, Il-Sup Kim, Hackwon Do, Hyun Kim, Woong Choi, Seung-Woo Jo, Seung Chul Shin, Jun Hyuck Lee, Ho-Sung Yoon, Han-Woo Kim   +9 more
doaj   +2 more sources

Overexpression of Mn-superoxide dismutase in maize leaves leads to increased monodehydroascorbate reductase, dehydroascorbate reductase and glutathione reductase activities [PDF]

Journal of Experimental Botany, 2000
The effect of increased Mn-superoxide dismutase (SOD) on antioxidant enzymes and metabolites was studied using transformed maize, TG1+ and TG2+. The progeny of the backcross of each of the primary transformants with the parental line generated two populations denoted M6884 and M6885.
A H, Kingston-Smith, C H, Foyer
openaire   +3 more sources

12-oxophytodienoic acid reductase 3 (OPR3) functions as NADPH-dependent α,β-ketoalkene reductase in detoxification and monodehydroascorbate reductase in redox homeostasis [PDF]

Plant and Cell Physiology, 2019
Abstract Arabidopsis ( Arabidopsis thaliana ) 12-oxophytodienoic acid reductase isoform 3 (OPR3) is involved in the synthesis of jasmonic acid by reducing the α,β-unsaturated double bond of the cyclopentenone moiety in 12-oxo-phytodienoic acid. Recent research revealed that jasmonic
Maynard, Daniel, Kumar, Vijay, Sproß, Jens, Dietz, Karl-Josef   +3 more
openaire   +4 more sources

Cytosolic Monodehydroascorbate Reductase 2 Promotes Oxidative Stress Signaling in Arabidopsis

Plant, Cell & Environment
ABSTRACTThe antioxidative enzyme monodehydroascorbate reductase (MDHAR) is represented by five genes in Arabidopsis, including four that encode cytosolic and peroxisomal proteins. The in planta importance of these specific isoforms during oxidative stress remain to be characterised.
Xu, Dongdong, Trémulot, Lug, Yang, Zheng, Mhamdi, Amna, Châtel-Innocenti, Gilles, Mathieu, Laura, Espinasse, Christophe, van Breusegem, Frank, Vanacker, Hélène, Issakidis- Bourguet, Emmanuelle, Noctor, Graham, Trémulot, Lug   +11 more
core   +4 more sources

Iron-superoxide dismutase and monodehydroascorbate reductase transcripts accumulate in response to internode rubbing in tomato [PDF]

Comptes Rendus. Biologies, 2004
A cDNA encoding an iron-superoxide dismutase (Fe-SOD) was isolated by RACE-PCR from a Lycopersicon esculentum cDNA library. The Fe-SOD cDNA consists of a 746-bp open reading frame and is predicted to encode a protein of 249 amino acids with a calculated molecular mass of 27.9 kDa. The deduced
Ben Rejeb, Ichrak, Lenne, Catherine, Leblanc-Fournier, Nathalie, Julien, Jean-Louis, Ammar, Saïda, Bouzid, Sadok, Ayadi, Abdelkader   +6 more
openaire   +4 more sources

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   +2 more sources

Kiwifruit Monodehydroascorbate Reductase 3 Gene Negatively Regulates the Accumulation of Ascorbic Acid in Fruit of Transgenic Tomato Plants. [PDF]

Int J Mol Sci, 2023
Ascorbic acid is a potent antioxidant and a crucial nutrient for plants and animals. The accumulation of ascorbic acid in plants is controlled by its biosynthesis, recycling, and degradation.
Jia D, Gao H, He Y, Liao G, Lin L, Huang C, Xu X.   +6 more
europepmc   +2 more sources