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Cellular Damages and Accumulation of Pb Polluted Pisum sativum L.:Implication for Phytoremediation(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2007 Vol.13 No.5
Page:
647-651
Research Field:
Reviews
Publishing date:

Info

Title:
Cellular Damages and Accumulation of Pb Polluted Pisum sativum L.:Implication for Phytoremediation
Author(s):
LIU Yansheng et al.
(1Research and Development Centre, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences,Shanghai 200031, China) (2School of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China)
Keywords:
Keywords Pb2+ heavy metal pollution phytoremediation Pisum sativum L. ultrastructure Xray microanalysis
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
Abstract A growing concern over the issues of phytoremediation and its possible mechanisms towards increasingly serious heavy metal pollution makes this study to deal with some important questions focused on the mechanisms of Pb tolerance and hyperaccumulation in Pisum sativum L. Transmission electron microscopy (TEM) and TEM Xray microanalysis were tandem used to analyze ultrastructural toxic effects and distribution pattern of Pb in organs and organelles of peas at concentrations of 50 mg/L and 200 mg/L Pb2+ as modest and serious stress, respectively. The results indicated that Pb might injure the membranous structures and all the organelles at different extents. The mechanisms of heavy metal resistance to some extent of Pisum sativum might involve the endurance of organelles, accumulation of roots, binding to cell walls, distribution in vacuoles and other possible behaviors at different levels. Fig 6, Ref 24

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Last Update: 2007-11-23