It bears in fact the name of Hans-Jürgen Rüger, a German microbiologist, for his contribution to the taxonomy of marine species of Agrobacterium.
[2] The genus is characterised by members who are:[3] 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.
[6][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.
[7] The bacterial sRNAs regulatory mechanisms are typically based on direct RNA-RNA interaction with a target mRNA.