Paper Title:
Effect of Soil Pb Pollution on Physiological-Biochemical Characteristics of Young Tilia amurensis Rupr.
  Abstract

Three-year old Tilia amerensis Rupr. was taken as study subject in a pot experiment. Chlorophyll content, REC, peroxidase activity, SOD activity, and other indices of Tilia amerensis Rupr. leaves were assayed. The experimental results show that Pb contaminated and destroyed the chloroplast structure of Tilia amerensis Rupr. leaves and impeded the synthesis of chlorophyll in the leaves. When Pb concentration was 10 mg•kg-1–100 mg•kg-1, REC of the Tilia extract was roughly equal to that of the control group, and Tilia amerensis Rupr. leaves were contaminated by Pb to a small degree. When Pb concentration reached a higher level, REC increased rapidly and Tilia amerensis Rupr. leaves were contaminated substantially. Low Pb concentration may lower the POD activity of the leaves. However, when Pb concentration was high, the POD activity elevated and Tilia amerensis Rupr. could exhibit various reactions to instinctively defend itself. The SOD activity of the Pb-contaminated Tilia amerensis Rupr. was slightly higher than that of the control group, and the ROS content remained low. The SOD enzyme system was undamaged.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
1395-1399
DOI
10.4028/www.scientific.net/AMR.183-185.1395
Citation
W. Y. Xu, L. Q. Mu, L. Sun, Z. X. Wang, "Effect of Soil Pb Pollution on Physiological-Biochemical Characteristics of Young Tilia amurensis Rupr.", Advanced Materials Research, Vols. 183-185, pp. 1395-1399, 2011
Online since
January 2011
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Price
$32.00
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