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

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICBBE.2009.5162856

Filename

5162856