Response of Mutant Sunflower Lines to Heat Shock

被引：0
作者：
E. V. Mashkina
N. V. Markin
A. V. Usatov
E. P. Gus'kov
机构：
[1] Rostov State University,Research Institute of Biology
来源：
Russian Journal of Plant Physiology | 2001年 / 48卷
关键词：
Helianthus annuus; heat shock; lipid peroxidation;
D O I：
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中图分类号：
学科分类号：
摘要：
The effects of heat shock (HS) (40°C for 1 h) on the level of malondialdehyde (MDA), the terminal product of lipid peroxidation, superoxide dismutase (SOD) activity, catalase activity, and total peroxidase activity (TPA) were studied in root meristems and chloroplasts of several sunflower (Helianthus annuusL.) lines that carried nuclear or plastome chlorophyll mutations. HS either lowered or did not affect the MDA level in the root meristem and in the chloroplasts from the first true leaf, as compared to the untreated plants. In both treatments, the root and leaf enzyme activities varied in the sunflower lines. In the root meristem, catalase was the most sensitive to HS, whereas, in the chloroplasts from HS-treated sunflower lines, HS activated either TPA or SOD.
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页码：788 / 792
页数：4
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