期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 13, 期 4, 页码 4458-4483出版社
MDPI
DOI: 10.3390/ijms13044458
关键词
abiotic stress; oxidative stress; alpha-tocopherol; ascorbate; glutathione
资金
- Hungarian Scientific Research Fund [77826]
- New Szechenyi Plan [TAMOP-4.2.1/B-09/1/KMR-2010-0002, TAMOP-4.2.1./B-09/1/KMR-2010-0001]
- Hungarian Academy of Sciences
The life of any living organism can be defined as a hurdle due to different kind of stresses. As with all living organisms, plants are exposed to various abiotic stresses, such as drought, salinity, extreme temperatures and chemical toxicity. These primary stresses are often interconnected, and lead to the overproduction of reactive oxygen species (ROS) in plants, which are highly reactive and toxic and cause damage to proteins, lipids, carbohydrates and DNA, which ultimately results in oxidative stress. Stress-induced ROS accumulation is counteracted by enzymatic antioxidant systems and non-enzymatic low molecular weight metabolites, such as ascorbate, glutathione and alpha-tocopherol. The above mentioned low molecular weight antioxidants are also capable of chelating metal ions, reducing thus their catalytic activity to form ROS and also scavenge them. Hence, in plant cells, this triad of low molecular weight antioxidants (ascorbate, glutathione and alpha-tocopherol) form an important part of abiotic stress response. In this work we are presenting a review of abiotic stress responses connected to these antioxidants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据