Effects of Cd2+ on the physiological state and photosynthetic activity of young barley plants

被引:47
作者
Vassilev, A
Yordanov, I
Tsonev, T
机构
[1] Agr Univ Plovdiv, BG-4000 Plovdiv, Bulgaria
[2] Bulgarian Acad Sci, M Popov Inst Plant Physiol, BG-1113 Sofia, Bulgaria
关键词
amino acids; C-14; photoassimilation; dark respiration rate; growth; Hordeum vulgare; photoassimilates; proteins; transpiration rate; water relations;
D O I
10.1023/A:1006805010560
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Barley plants (Hordeum vulgare L. cv. Obzor) were grown as a water culture in a climatic room. One part of them was subjected to a long-term Cd2+ stress -12 d with 5.4x10(-5) M Cd. The Cd2+ stress inhibited formation of the photosynthetic apparatus and its capacity for C-14 photoassimilation, decreased the content of soluble proteins, increased the dark respiration rate and the free amino acids content, disturbed plant water relations, as well as the distribution of C-14 within primary photoproducts of the treated barley plants.
引用
收藏
页码:293 / 302
页数:10
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