期刊
JOURNAL OF PLANT NUTRITION
卷 39, 期 13, 页码 1926-1935出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01904167.2016.1201107
关键词
Antioxidants; MDA; Lycopersicon esculentum; salt stress; plant growth
To check the efficacy of potassiumin alleviating oxidative stress under salt stress, salt-tolerant (Indent(-1)) and salt-sensitive (Red Ball) tomato (Lycopersicon esculentum Mill.) genotypes were exposed to three levels of sodium chloride (NaCl) (0, 75, 150 mM) and two levels of potassium (4.5 and 9 mM) in solution and foliar form. Thirty days of treatments revealed that increasing NaCl stress increased lipid peroxidation (malondialdehyde, MDA) and correspondingly the activity of antioxidant enzymes (superoxide dismutase, SOD; catalase, CAT; and glutathione reductase GR) in both genotypes. However, higher potassium (K) level in solution or foliar spray during the salt-induced stress decreased MDA and antioxidant activity and increased the growth in salt-tolerant genotype than in the salt-sensitive genotype. Decrease in MDA concentration, activity of antioxidant enzymes, and increase in the growth of tomato plants by the application of potassium under salt stress suggest that potassiumis an effective ameliorating agent against salt-induced oxidative damage.
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