Abstract
A Gram-staining-negative, rod-shaped bacterium, strain HMD2169(T), was isolated from a mesotrophic artificial lake in Korea. Strain HMD2169(T) grew in the presence of 0-3.0% (w/v) NaCl, at pH 5-10 and at 20-37 °C. The predominant quinone of strain HMD2169(T) was ubiquinone (UQ)-8. The major fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c). 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)).
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