Hahella ganghwensis sp. nov., isolated from tidal flat sediment

Abstract

A marine bacterial strain, designated FR1050(T), was isolated from a sediment sample of getbol (Korean tidal flat). Phylogenetic investigations based on 16S rRNA gene sequence analysis showed that the isolate formed a robust monophyletic clade with Hahella chejuensis within the gamma-Proteobacteria. Sequence similarity between strain FR1050(T) and the type strain of Hahella chejuensis was 94.7%. Cells were Gram-negative, aerobic, rod-shaped, motile and halophilic; optimum growth occurred at sea salt concentrations of 4-6%. The major fatty acids were C(18:1)w9c (39.0%) and C-16:0 (18.1%). The DNA G + C content was 44 mol%. The polyphasic data obtained showed that strain FR1050(T) is affiliated to the genus Hahella but represents a novel species for which the name Hahella ganghwensis sp. nov. is proposed. The type strain is FR1050(T) (=KCTC 12277(T)=jCM 12486(T)).