title: Serratia ureilytica sp. nov., a novel urea-utilizing species.
abstract: A Gram-negative, rod-shaped, urea-dissolving and non-spore-forming bacterium, designated strain NiVa 51(T), was isolated from water of the River Torsa in Hasimara, Jalpaiguri district, West Bengal, India. On the basis of 16S rRNA gene sequence similarity, strain NiVa 51(T) was shown to belong to the gamma-Proteobacteria and to be related to Serratia marcescens subsp. sakuensis (98.35%) and S. marcescens subsp. marcescens (98.30%); however, strain NiVa 51(T) exhibited only 43.7% similarity to S. marcescens by DNA-DNA hybridization. The G+C content of the genomic DNA of the isolate was 60 mol%. Both biochemical characteristics and fatty acid analysis data supported the affiliation of strain NiVa 51(T) to the genus Serratia. Furthermore, strain NiVa 51(T) was found to utilize urea as nitrogen source. The results of DNA-DNA hybridization as well as physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain NiVa 51(T) from recognized Serratia species. Strain NiVa 51(T) therefore represents a novel species, for which the name Serratia ureilytica sp. nov. is proposed, with type strain NiVa 51(T) (=LMG 22860(T)=CCUG 50595(T)).
authors.affiliation: Microbiology Laboratory, Department of Biotechnology, North Bengal University, Siliguri-734430, West Bengal, India.
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Bhadra
authors.affiliation: Department of Microbiology, Bose Institute, CIT-Scheme VII-A, Kolkata-56, India.
authors.forename: Pradosh
authors.initials: P
authors.lastname: Roy
authors.affiliation: Microbiology Laboratory, Department of Biotechnology, North Bengal University, Siliguri-734430, West Bengal, India.
authors.forename: Ranadhir
authors.initials: R
authors.lastname: Chakraborty
mesh_terms: D015373:Bacterial Typing Techniques; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D020459:Genes, rRNA; D005838:Genotype; D007194:India; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D045483:Rivers / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D012705:Serratia / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D014508:Urea / Q000378:metabolism*
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S; D014508:Urea