Toxic effects, uptake, and translocation of Cd and Pb in perennial ryegrass

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	Toxic effects, uptake, and translocation of Cd and Pb in perennial ryegrass
	Lou, Yanhong; Luo, Hongji; Hu, Tao; Li, Huiying; Fu, Jinmin
刊名	ECOTOXICOLOGY
	2013
英文摘要	Cadmium (Cd) and lead (Pb) are regarded as the most toxic environmental pollutants because they are a threat not only to plants, but also to humans. Better understanding of the growth response, uptake and translocation of Cd and Pb in perennial ryegrass (Lolium perenne L.) would be helpful to evaluate the role of this grass species as a potential candidate used for phyto-remediation. Perennial ryegrass seedlings were subjected to three Pb levels (0, 0.5, and 3.2 mM) for 6 days and three Cd levels (0, 0.2, and 0.5 mM) for 7 days in a walk-in growth room. The Cd and Pb reduced the normalized transpiration and growth rate. Greater amount of Cd and Pb accumulated in roots relative to shoots. The enrichment coefficient (EC) and translocation factor (TF) were greater in plants treated with Cd than those with Pb. The dose of Cd had no effect on EC and TF. However, the plants subjected to higher dose of Pb had a greater TF and a lower EC relative to that with lower dose of Pb. Meanwhile, removal rates were decreased when the doses of Pb and Cd increased. The results indicated that perennial ryegrass preferred Cd assimilation to Pb, and can be considered as one of the plant species which accumulate high levels of Cd and Pb.
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/659]
专题	中国科学院武汉植物园
推荐引用方式 GB/T 7714	Lou, Yanhong,Luo, Hongji,Hu, Tao,et al. Toxic effects, uptake, and translocation of Cd and Pb in perennial ryegrass[J]. ECOTOXICOLOGY,2013.
APA	Lou, Yanhong,Luo, Hongji,Hu, Tao,Li, Huiying,&Fu, Jinmin.(2013).Toxic effects, uptake, and translocation of Cd and Pb in perennial ryegrass.ECOTOXICOLOGY.
MLA	Lou, Yanhong,et al."Toxic effects, uptake, and translocation of Cd and Pb in perennial ryegrass".ECOTOXICOLOGY (2013).