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1 Laboratorium voor Microbiologie, Vakgroep Biochemie, Fysiologie en Microbiologie, Universiteit Gent, K. L. Ledeganckstraat 35, B-9000 Gent, Belgium
2 LEMiR, Laboratoire d'Ecologie Microbienne de la Rhizosphère, CNRS-CEA-Université de la Méditerranée, DEVM, Département d'Ecophysiologie Végétale et de Microbiologie/DSV CEA Cadarache, F-13108 Saint-Paul-lès-Durance, France
3 Istituto di Scienze Marine–Consiglio Nazionale delle Ricerche (ISMAR–CNR), Via de Marini 6, I-16149 Genoa, Italy
Correspondence
Ilse Vandecandelaere
Ilse.Vandecandelaere{at}UGent.be
Five isolates obtained from a marine electroactive biofilm grown on a stainless steel cathode were investigated by using a polyphasic taxonomic approach. Analyses of whole-cell fatty acid methyl esters and 16S rRNA gene sequences showed that the isolates belonged to the Roseobacter lineage of the class Alphaproteobacteria. Both phenotypic and genotypic analyses demonstrated that the five new isolates constituted a single species that did not represent a recognized member of the Roseobacter lineage. Therefore the five isolates represent a novel genus and species, for which the name Nautella italica gen. nov., sp. nov. is proposed. The type strain is LMG 24365T (=CCUG 55857T). The DNA G+C content of the type strain is 61 mol%.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains LMG 24365T, LMG 24364, R-25532, R-28717 and R-28753 are AM904562, AM904563, AM944520, AM944521 and AM944522, respectively.
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