1887

Abstract

Summary: The 16S rRNA gene of was amplified by polymerase chain reaction and sequenced by direct double-stranded sequencing. The phylogenetic analysis placed in the β-group of the Proteobacteria, with 90.0% similarity to and 88.6% to The published phenotypic characteristics of were compiled and supplemented with growth experiments using ferrous iron, thiosulphate and sulphide as electron donor, and nitrate as nitrogen source. is a Gram-negative, curved bacterium with one polar fiagellum. It grows auto- and mixotrophically with CO glucose, fructose and sucrose as carbon sources, ferrous iron as an electron donor and ammonium or nitrate as nitrogen sources. Two specific oligonucleotide probes are suggested. An iron-oxidizing bacterium without stalk-forming ability, but with the same growth pattern as was identified as by comparison of highly variable parts of the 16S rRNA gene. This indicates that the stalk is not essential for growth.

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/content/journal/micro/10.1099/00221287-139-7-1531
1993-07-01
2019-09-20
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