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Uptake and degradation of EDTA by Escherichia coli

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Abstract

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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Correspondence to Noriyuki Koyama.

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Suzuki, Y., Koyama, N. Uptake and degradation of EDTA by Escherichia coli . Biodegradation 20, 39–44 (2009). https://doi.org/10.1007/s10532-008-9197-z

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  • DOI: https://doi.org/10.1007/s10532-008-9197-z

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