Chitinimonas viridis sp nov., isolated from a mesotrophic artificial lake

A Gram-staining-negative, rod-shaped bacterium, strain HMD2169(T), was isolated from a mesotrophic artificial lake in Korea. Strain HMD2169T grew in the presence of 0-3.0% (w/v) NaCl, at pH 5-10 and at 20-37 degrees C. The predominant quinone of strain HMD2169(T) was ubiquinone (UQ)-8. The major fatty acids were summed feature 3 (comprising C-16:1 omega 7c and/or C-16:1 omega 60, C-16:0 and summed feature 8 (comprising C-13:1 omega 7c and/or C-18:1 omega 6c). The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, two unidentified aminolipids and two unidentified lipids. The DNA G + C content was 59.8 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain HMD2169(T) was a representative of a lineage within the genus Chitinimonas. Strain HMD2169(T) was closely related to Chitinimonas taiwanensis (95.8% sequence similarity) and Chitinimonas koreensis (94.6%). On the basis of the evidence presented in this study, strain HMD2169(T) is a representative of a novel species of the genus Chitinimonas, for which the name Chitinimonas viridis sp. nov. is proposed with the type strain HMD2169(T) (=KCTC 22839(T)=CECT 7703(T)).