[Effects of Pb2+ and Cd2+ pollution on physiological characteristics of Thuidium cymbifolium].
This paper dealt with the effects of Pb2+, Cd2+ and their combined pollution on the contents of chlorophyll, potassium and calcium in Thuidium cymbifolium. The results showed that except at 0.1 mg Cd2+.L(-1), the chlorophyll content decreased with increasing Pb2+ and Cd2+ concentrations, which was 18% of the control at 100 mg Cd2+.L(-1), and decreased by 48.6% at 200 mg Pb2+.L(-1). The potassium and calcium contents also decreased with increasing pollutants concentrations, being decreased by 61.1% at 100 mg Cd2+.L(-1). Cd2+ had a stronger toxicity than Pb2+, and the toxicity of their combined pollution was stronger than that of each pollutant. Pb2+ could increase the toxicity of Cd2+.
Wei
Haiying
H
College of Forest Resource and Environmental Science, Nanjing Forestry University, Nanjing 210037, China. why.78@163.com
Fang
Yanming
Y
Yin
Zengfang
Z
D002104:Cadmium / Q000009:adverse effects* / Q000032:analysis; D002118:Calcium / Q000378:metabolism; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000009:adverse effects* / Q000032:analysis; D007854:Lead / Q000009:adverse effects* / Q000032:analysis; D010944:Plants / Q000187:drug effects / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism
D004785:Environmental Pollutants; D002104:Cadmium; D007854:Lead; D011188:Potassium; D002118:Calcium