Results 91 to 100 of about 3,323 (193)

Nucleobase‐ascorbate transporter OsNAT9 regulates seed vigor and drought tolerance by modulating ascorbic acid homeostasis in rice

The Plant Journal, Volume 122, Issue 3, May 2025.
SUMMARY Drought and seed aging severely impact crop yield and seed vigor, respectively. Here, we identified the rice protein OsNAT9, a nucleobase–ascorbate transporter, as being crucial for seed vigor and drought tolerance. Knockout of OsNAT9 resulted in a significant reduction in seed vigor; however, the application of exogenous ascorbic acid (AsA ...
Sufeng Liao, Kunyang Li, Yidong Wei, Shuai Zhao, Min Zhang, Jinlan Wang, Jiahuan Jiang, Ting Chen, Fangxi Wu, Jiaxing Fan, Qiuhua Cai, Yingheng Wang, Liping Chen, Wei He, Huaan Xie, Jianfu Zhang   +15 more
wiley   +1 more source

Chloroplastic ascorbate peroxidase is the primary target of methylviologen-induced photooxidative stress in spinach leaves: its relevance to monodehydroascorbate radical detected with in vivo ESR

, 2001
Methylviologen (MV) induces oxidative damages in leaves. In order to understand its mechanism we studied initial biochemical events under light in MV-fed spinach leaves.
Ohno, Chiaki, Mano, Jun’ichi, Asada, Kozi, Domae, Yoshinori   +3 more
core   +1 more source

Oligogalacturonides stimulate antioxidant system in alfalfa roots

Biologia Plantarum, 2012
Alfalfa (Medicago sativa L.) roots were treated with 50 and 100 μg cm-3 of oligogalacturonide (OGA) solutions with a degree of polymerization between 7 and 15.
D. Camejo, M. C. Martí, E. Olmos, W. Torres, F. Sevilla, A. Jiménez   +5 more
doaj   +1 more source

, L.) in a Stressful Climate

, 1995
The activities of superoxide dismutase, ascorbate peroxidase, monodehydroascorbate radical reductase, and dehydroascorbate reductase and the contents of ascorbate, chlorophyll and soluble protein were determined in beech (Fagus sylvatica, L.) foliage ...
Polle, Andrea, Birgit Morawe, Andrea Polle, Morawe, Birgit   +3 more
core   +1 more source

Antioxidant activity as a response to cadmium pollution in three durum wheat genotypes differing in salt-tolerance

Open Chemistry, 2020
Durum wheat is commonly used in various food industry industries and cultivated worldwide. A serious problem with the species cultivation is its capability to accumulate cadmium (Cd) in the grains.
Pastuszak Jakub, Kopeć Przemysław, Płażek Agnieszka, Gondek Krzysztof, Szczerba Anna, Hornyák Marta, Dubert Franciszek   +6 more
doaj   +1 more source

Effects of exogenous hydrogen sulfide on the redox states of ascorbate and glutathione in maize leaves under salt stress

Biologia Plantarum, 2014
This study investigated the effects of exogenous hydrogen sulfide (H2S) on the redox states of ascorbate (AsA) and glutathione (GSH) in maize leaves under NaCl (100 mM) stress.
C. Shan, H. Liu, L. Zhao, X. Wang
doaj   +1 more source

Regulation of Ascorbate-Glutathione Pathway in Mitigating Oxidative Damage in Plants under Abiotic Stress

Antioxidants, 2019
Reactive oxygen species (ROS) generation is a usual phenomenon in a plant both under a normal and stressed condition. However, under unfavorable or adverse conditions, ROS production exceeds the capacity of the antioxidant defense system.
Mirza Hasanuzzaman, M. H. M. Borhannuddin Bhuyan, Taufika Islam Anee, Khursheda Parvin, Kamrun Nahar, Jubayer Al Mahmud, Masayuki Fujita   +6 more
doaj   +1 more source

Isolation and characterization of a monodehydroascorbate reductase gene in poplar (Populus alba × P. glandulosa)

Journal of Plant Biotechnology, 2014
Abstract Monodehydroascorbate reductase (MDHAR) is an important enzyme that plays a role in the detoxification of reactive oxygen species (ROS) by maintaining reduced pool of ascorbate through recycling the oxidized form of ascorbate. In this study, we isolated a PagMDHAR1 gene from Populus alba × P.
Seo-Kyung Yoon, Eung-Jun Park, Eun-Kyung Bae, Young-Im Choi, Joon-Hyeok Kim, Hyoshin Lee   +5 more
openaire   +2 more sources

Molecular analysis of monodehydroascorbate reductase and dehydroascorbate reductase in plants

, 2000
Oxidative stress is an inevitable phenomenon in green plants because they generate toxic reactive oxygen species. Through normal metabolism plants produce copious amount of molecular oxygen in cellular organelles that carry out highly energetic electron ...
Youn, Hyewon
core  

Dissecting the Superoxide Dismutase-Ascorbate-Glutathione-Pathway in Chloroplasts by Metabolic modeling. Computer Simulations as a Step towards Flux Analysis [PDF]

, 2001
The present study introduces metabolic modeling as a new tool to analyze the network of redox reactions composing the superoxide dismutase-ascorbate (Asc)-glutathione (GSH) cycle. Based on previously determined concentrations of antioxi-dants and defense
Polle, Andrea, Andrea Polle
core   +1 more source