Document Detail

Contribution of Cell Walls, Nonprotein Thiols, and Organic Acids to Cadmium Resistance in Two Cabbage Varieties.
MedLine Citation:
PMID:  23111495     Owner:  NLM     Status:  Publisher    
To study possible cadmium (Cd) resistance mechanisms in cabbage (Brassica oleracea L.), several parameters of metal uptake, distribution, and complexation were compared between two varieties Chunfeng [CF (Cd-tolerant)] and Lvfeng [LF (Cd-sensitive)]. Results showed that CF contained significantly lower Cd concentrations in leaves and higher Cd concentrations in roots than LF. Approximately 70 to 74 % and 66 to 68 % of Cd taken up by LF and CF, respectively, was transported to shoots. More Cd was bound to the cell walls of leaves, stems, and roots in CF than in LF. The higher capacity of CF to limit Cd uptake into shoots could be explained by immobilization of Cd in root cell walls. Compared with control groups, Cd treatment also significantly increased concentrations of nonprotein thiols, phytochelatins (PCs), and citric acid in the leaves and roots of the two varieties; the increases were more pronounced in CF than in LF. Taken together, the results suggest that the greater Cd resistance in CF than in LF may be attributable to the greater capacity of CF to limit Cd uptake into shoots and complex Cd in cell walls and metal binding ligands, such as PCs and citric acid. However, the contributions of PCs and citric acid to Cd detoxification might be smaller than those in cell walls.
Jianyun Sun; Jin Cui; Chunling Luo; Lu Gao; Yahua Chen; Zhenguo Shen
Related Documents :
24924855 - Microbial, chemical and sensory properties of shalgams made using different production ...
23446885 - Occurrence of disinfection by-products in tap water distribution systems and their asso...
24011195 - Evaluation of tris-citric acid, skim milk and sodium citrate extenders for liquid stora...
24587535 - Effects of brine concentration on lipid oxidation and fatty acids profile of hot smoked...
24924855 - Microbial, chemical and sensory properties of shalgams made using different production ...
24552275 - Potential oil yield, fatty acid composition, and oxidation stability of the hempseed oi...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-31
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  -     ISSN:  1432-0703     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
College of Life Sciences, Nanjing Agricultural University, Nanjing, China.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Variations in the degree of epiblepharon with changes in position and induction of general anesthesi...
Next Document:  Effects of HLA-Matched Blood Transfusion for Patients Awaiting Renal Transplantation.