Anti-oxidative effect of elevated CO2 concentration in the air on maize hybrids subjected to severe chill

被引:8
作者
Baczek-Kwinta, R [1 ]
Koscielniak, J [1 ]
机构
[1] Univ Agr, Dept Plant Physiol, Fac Agr & Econ, PL-30239 Krakow, Poland
基金
中国国家自然科学基金; 芬兰科学院;
关键词
ascorbate peroxidase; catalase; photoinhibition; photosynthetic induction; membrane injury; superoxide dismutase; Zea mays;
D O I
10.1023/B:PHOT.0000011947.78548.e1
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Elevated CO2 concentration (700 cm(3) m(-3), EC) inhibited chill-dependent (7 degreesC) depression of net photosynthetic rate of two maize hybrids with different sensitivity to low temperature. The rate of superoxide radical formation in leaves, leaf membrane injury, and the decrease in maximal quantum efficiency of photosystem 2 were successfully diminished by the treatment. The protective effect of EC toward stress conditions was prolonged at the recovery phase (20 degreesC). The genotypic impact on studied parameters was also notable.
引用
收藏
页码:161 / 165
页数:5
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