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Int J Syst Evol Microbiol 57 (2007), 1699-1703; DOI  10.1099/ijs.0.64877-0
© 2007 International Union of Microbiological Societies

Methylobacterium salsuginis sp. nov., isolated from seawater

Xun Wang, Foday Sahr, Ting Xue and Baolin Sun

Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China

Correspondence
Baolin Sun
sunb{at}ustc.edu.cn

Three pink-pigmented, facultatively methylotrophic strains, designated MP1, MP2 and MRT, were isolated from seawater from southern China and characterized. Analysis of their complete 16S rRNA gene sequences revealed that they constituted three separate phylogenetic groups, showing the highest levels of similarity with respect to some members of the genus Methylobacterium. PCR amplification also showed the gene coding for the {alpha}-subunit of methanol dehydrogenase (mxaF) to be present in all strains, indicating a methylotrophic metabolism. All three strains utilized D-fructose, ethanol and nutrient agar as carbon sources, but did not utilize sucrose, citrate, acetate or formaldehyde. On the basis of the phenotypic, phylogenetic and genotypic analyses, strain MRT represents a novel species, for which the name Methylobacterium salsuginis sp. nov. is proposed, with MRT (=CGMCC 1.6474T =NCCB 100140T) as the type strain. Strains MP1 and MP2 respectively represent novel strains of the species Methylobacterium oryzae and Methylobacterium lusitanum.

The GenBank/EMBL/DDBJ accession numbers for the mxaF and 16S rRNA gene sequences of strain MP1 are EF030547 and EF015477, respectively, those for strain MP2 are EF030548 and EF015479, and those for strain MRT are EF030550 and EF015478.






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