Effect of drought on biomass, protein content, lipid peroxidation and antioxidant enzymes in two sesame cultivars

被引：186
|
作者：
Fazeli, F.
Ghorbanli, M.
Niknam, V.
机构：
[1] Teacher Training Univ, Fac Sci, Dept Biol, Tehran 15614, Iran
[2] Univ Tehran, Coll Sci, Sch Biol, Tehran 14155, Iran
来源：
BIOLOGIA PLANTARUM | 2007年 / 51卷 / 01期
关键词：
catalase; malondialdehyde; peroxidase; polyphenol oxidase; Sesamum indicum; superoxide dismutase;
D O I：
10.1007/s10535-007-0020-1
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The effects of drought on growth, protein content, lipid peroxidation, superoxide dismutase (SOD), peroxidase (POX), catalase (CAT) and polyphenol oxidase (PPO) were studied in leaves and roots of Sesamum indicum L. cvs. Darab 14 and Yekta. Four weeks after sowing, plants were grown under soil moisture corresponding to 100, 75, 50 and 25 % field capacity for next four weeks. Fresh and dry masses, and total protein content in leaves and roots decreased obviously under drought. However, several new proteins appeared and content of some proteins was affected. Measurement of malondialdehyde content in leaves and roots showed that lipid peroxidation was lower in Yekta than in Darab 14. Severe stress increased SOD, POX, CAT and PPO activities in leaves and roots, especially in Yekta. According to the present study Yekta is more resistant to drought than Darab 14.
引用
收藏
页码：98 / 103
页数：6
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