Ruegeria

Ruegeria
Scientific classification
Domain:	Bacteria
Phylum:	Proteobacteria
Class:	Alphaproteobacteria
Order:	Rhodobacterales
Family:	Rhodobacteraceae
Genus:	Ruegeria Uchino et al. 1999
Type species
Ruegeria atlantica (Rüger and Höfle 1992) Uchino et al. 1999
Species
Ruegeria arenilitoris Park and Yoon 2013 Ruegeria atlantica (Rüger and Höfle 1992) Uchino et al. 1999 Ruegeria conchae Lee et al. 2012 Ruegeria faecimaris Oh et al. 2011 Ruegeria halocynthiae Kim et al. 2012 Ruegeria intermedia Kämpfer et al. 2013 Ruegeria lacuscaerulensis (Petursdottir and Kristjansson 1999) Yi et al. 2007 Ruegeria marina Huo et al. 2011 Ruegeria mobilis Muramatsu et al. 2007 Ruegeria pomeroyi (González et al. 2003) Yi et al. 2007 Ruegeria scottomollicae Vandecandelaere et al. 2008
Synonyms
Ruegeria Uchino et al. 1999 emend. Martens et al. 2006 Ruegeria Uchino et al. 1999 emend. Yi et al. 2007 Silicibacter Petursdottir and Kristjansson 1999

In taxonomy, Ruegeria is a genus of the Rhodobacteraceae. This genus was formerly known as the marine Agrobacterium before they were reclassified in 1998. It bears in fact the name of Hans-Jürgen Rüger, a German microbiologist, for his contribution to the taxonomy of marine species of Agrobacterium.

The genus is characterised by members who are:

Phylogenetically it is very close to the genus Silicibacter, but the two remain separate species due to phenotypic differences — two species for which this is problematic are Ruegeria lacuscaerulensis and Ruegeria pomeroyi.

Two species that have been removed from the genus are Marinovum algicola (Ruegeria algicola) and Thalassobius gelatinovorus (Ruegeria gelatinovora).^{[and refs therein]}

Highly abundant bacterial small RNAs have been shown to be present in the bacteria subjected to chronic nutrient limitation. In Ruegeria pomeroyi RNAseq analysis identified 99 putative sRNAs. The bacterial sRNAs regulatory mechanisms are typically based on direct RNA-RNA interaction with a target mRNA. The target gene groups identified by Rivers et al. were genes involved in transport, genes mediating cell-cell interactions, signal transduction and transcriptional regulation.

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