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

Content Provider	Springer Nature Link
Author	Lou, Yanhong Luo, Hongji Hu, Tao Li, Huiying Fu, Jinmin
Copyright Year	2012
Abstract	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.
Starting Page	207
Ending Page	214
Page Count	8
File Format	PDF
ISSN	09639292
Journal	Ecotoxicology
Volume Number	22
Issue Number	2
e-ISSN	15733017
Language	English
Publisher	Springer US
Publisher Date	2012-11-13
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cd Pb Toxic Uptake Translocation Perennial ryegrass Environment Ecotoxicology Ecology Environmental Management
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Medicine Toxicology Management, Monitoring, Policy and Law

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