Paramoritella sediminis sp nov., isolated from marine sediment, and emended descriptions of the genus Paramoritella Hosoya et al. 2009 and Paramoritella alkaliphila

Abstract

A Gram-negative, facultatively anaerobic, rod-shaped (2.04-1.27x0.95-1.25 mu m) and motile marine bacterium, designated MEBiC06500(T) was isolated from sediment collected at Daebu Island in the Yellow Sea (37 degrees 20' N 126 degrees 41' a Korea. 16S rRNA gene sequence analysis revealed that strain MEBiC06500T showed high similarity with Paramoritella alkaliphila A3F-7(T) (96.5 %). Growth was observed at 10.5-30.2 degrees C (optimum 23.5 degrees C), at pH 6.0-9.5 (optimum 8.0) and with 0-5% (optimum 1.5%) NaCl. The predominant cellular fatty acids were C-14:0, C-16:0, C-18:1 omega 7c and summed feature 3 (iso-C-15:0 2-OH and/or C-16:1 omega 7c. The DNA G+C content was 56.0 mol%. The respiratory quinone is Q-8. Phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, four unidentified lipids, one unidentified phospholipid and three unidentified aminolipids were detected as major polar lipids. On the basis of this polyphasic taxonomic data, strain MEBiC06500(T) should be classified as a representative of a novel species in the genus Paramoritella, and the proposed name is Paramoritella sediminis sp. nov. The type strain is MEBiC06500(T) (=KCCM 42977(T)=JCM 18292(T)). Emended descriptions of the genus Paramoritella Hosoya et al. 2009 and Paramoritella alkaliphila are also given.