Draft Genome Sequences of Geomicrobium sp. Strains JCM 19037, JCM 19038, JCM 19039, and JCM 19055, Isolated from Aquatic Samples.

Haloalkaliphilic strains JCM 19037, JCM 19038, JCM 19039, and JCM 19055, closely related to Geomicrobium sediminis, were isolated from aquatic samples, and their draft genome sequences were determined. The genome information of these four strains will be useful for studies of their physiology and ecology.

Physiological characterization of aerobic culturable bacteria in the intestine of the sea cucumber Apostichopus japonicus.

Various aerobic culturable bacteria (1,133 isolates) were isolated from the gut of Apostichopus japonicus (black adult, green adult, black small, green small, black juvenile, and green juvenile sea cucumbers) and from the sea sediment and the seawater using different culture conditions and without enrichment culture. By molecular analysis of partial 16S rRNA gene sequences of 231 isolates, they were tentatively affiliated with 53 described species in the phyla Firmicutes (42 species), Proteobacteria (9 species) and Actinobacteria (2 species). Eighteen species were often found among the intestines and the sea sediment.