Uptake and degradation of EDTA by Escherichia coli

被引：11
|
作者：
Suzuki, Yousuke [1 ]
Koyama, Noriyuki [1 ]
机构：
[1] Chiba Univ, Dept Chem, Fac Sci, Chiba 2638522, Japan
来源：
BIODEGRADATION | 2009年 / 20卷 / 01期
关键词：
EDTA uptake; EDTA degradation; Fe3+-dependent; STRAIN DSM 9103; ALKALOPHILIC BACILLUS; FERRIC CHELATE; BACTERIUM BNC1; TRANSPORT; NICKEL; BINDING; SYSTEM; CELLS; ACID;
D O I：
10.1007/s10532-008-9197-z
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
It was found that Escherichia coli exhibited a growth by utilization of Fe(III)EDTA as a sole nitrogen source. No significant growth was detected when Fe(III)EDTA was replaced by EDTA complexes with other metal ions such as Ca2+, Co2+, Cu2+, Mg2+, Mn2+, and Zn2+. When EDTA uptake was measured in the presence of various ions, it was remarkable only when Fe3+ was present. The cell extract of E. coli exhibited a significant degradation of EDTA only in the presence of Fe3+. It is likely that the capability of E. coli for the growth by utilization of Fe(III)EDTA results from the Fe3+-dependent uptake and degradation of EDTA.
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页码：39 / 44
页数：6
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