Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves

NWIPB OpenIR

	Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves
	Shi, P ; Huang, ZW ; Chen, GC
	2006-02-01
发表期刊	BIOLOGICAL TRACE ELEMENT RESEARCH ; Shi P, Huang ZW, Chen GC.Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves.BIOLOGICAL TRACE ELEMENT RESEARCH,2006,109(2):181-188
摘要	Influence of La3+ on the accumulation of trace elements (Se-75, Co-56, Rb-83, V-48, (95)mTc, and Ga-67) in chloroplasts of cucumber seedling leaves was studied by a radioactive multitracer technique. At the same time, chloroplast contents of different concentrations of La3+ treatment were calculated. It was observed that chloroplast contents peaked at 0.02 mM La3+ treatment and that the uptake and distribution of these trace elements in chloroplasts of cucumber seedling leaves are different under different La3+, treatments. With the increase of lanthanum concentrations from 0.002 to 2 mM, the uptake percentages of Se-75, Co-56, and Rb-83 presented an obvious increase and then sharply decreased in contrast to the nonlanthanum treatment, whereas there appeared a sharp decrease and then restored control level in the uptake of V-48. The other two trace elements, namely Tc-95m and Ga-67, were accumulated only in the presence of 0.02 mM La3+. The results indicate that lanthanum treatments to growing the cucumber lead to the change of trace element uptake in the chloroplasts of leaves, which suggest that lanthanum might influence the accumulation of trace elements in chloroplasts of cucumber seedling leaves by regulation of various ion transport mechanisms, thus affecting the photosystem of leaves.; Influence of La3+ on the accumulation of trace elements (Se-75, Co-56, Rb-83, V-48, (95)mTc, and Ga-67) in chloroplasts of cucumber seedling leaves was studied by a radioactive multitracer technique. At the same time, chloroplast contents of different concentrations of La3+ treatment were calculated. It was observed that chloroplast contents peaked at 0.02 mM La3+ treatment and that the uptake and distribution of these trace elements in chloroplasts of cucumber seedling leaves are different under different La3+, treatments. With the increase of lanthanum concentrations from 0.002 to 2 mM, the uptake percentages of Se-75, Co-56, and Rb-83 presented an obvious increase and then sharply decreased in contrast to the nonlanthanum treatment, whereas there appeared a sharp decrease and then restored control level in the uptake of V-48. The other two trace elements, namely Tc-95m and Ga-67, were accumulated only in the presence of 0.02 mM La3+. The results indicate that lanthanum treatments to growing the cucumber lead to the change of trace element uptake in the chloroplasts of leaves, which suggest that lanthanum might influence the accumulation of trace elements in chloroplasts of cucumber seedling leaves by regulation of various ion transport mechanisms, thus affecting the photosystem of leaves.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/35552
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Shi, P,Huang, ZW,Chen, GC. Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves[J]. BIOLOGICAL TRACE ELEMENT RESEARCH, Shi P, Huang ZW, Chen GC.Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves.BIOLOGICAL TRACE ELEMENT RESEARCH,2006,109(2):181-188,2006.
APA	Shi, P,Huang, ZW,&Chen, GC.(2006).Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves.BIOLOGICAL TRACE ELEMENT RESEARCH.
MLA	Shi, P,et al."Influence of lanthanum on the accumulation of trace elements in chloroplasts of cucumber seedling leaves".BIOLOGICAL TRACE ELEMENT RESEARCH (2006).