期刊
BIODEGRADATION
卷 20, 期 1, 页码 39-44出版社
SPRINGER
DOI: 10.1007/s10532-008-9197-z
关键词
EDTA uptake; EDTA degradation; Fe3+-dependent
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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