Title :
Fe-Deficiency Induces Low Molecular Weight Organic Acids Exude at Different Cadmium Concentrations
Author :
Bao, Tong ; Tie-heng Sun ; Sun, Li-na
Author_Institution :
Inst. of Appl. Ecology, Chinese Acad. of Sci., Shenyang, China
Abstract :
The influence of Fe-deficiency on exudation of low molecular weight organic acids (LMWOAs) were investigated based on the hydroponic culture experiment. Tartaric, citric, malic, and acetic acids were chosen as representatives of LMWOAs commonly present in roots exudation. We also investigated the influence of Fe-deficiency on pH of rhizosphere. The results showed that Fe-deficient excreted large amounts of LMWOAs in comparison with Fe-sufficient. The Fe-deficient and Fe-sufficient concentrations of four organic acids in roots exudation were in the same following sequence tartaric>citric>malic>acetic.
Keywords :
biochemistry; botany; cadmium; ecology; iron; organic compounds; pH; Cd; Fe; acetic acid; cadmium concentration; citric acid; hydroponic culture experiment; iron deficiency; low molecular weight organic acids; malic acid; pH; rhizosphere; roots exudation; tartaric acid; Amino acids; Cadmium; Environmental factors; Iron; Plastics; Soil; Sun; Surface resistance; Water pollution; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5162856
