Chitinimonas naiadis sp. nov., Isolated from a Freshwater River

Abstract

A rod shaped, aerobic, Gram-stain-negative, and motile bacterium, strain AR2, was isolated from a water sample of Yeongsan river, Republic of Korea. Strain AR2 clustered closely with the members of the genus and showed the highest 16S rRNA gene sequence similarity with LY03 (96.4%), HMD2169 (96.4%), cf (96.2%), and R2A43-10 (94.2%). The predominant fatty acids of strain AR2 were identified to be summed feature 3 (comprising C and/or C), C, and C3-OH. Diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine were found to be the major polar lipids. The genomic DNA G+C content was 60.4 mol%. Based on the polyphasic characterization, the isolated strain AR2 is described as a representative of a novel species in the genus , for which the name sp. nov. (type strain =AR2 =KCTC 42755 =JCM 31504) is proposed.

Chitinimonas arctica sp. nov., isolated from Arctic tundra soil

“…The predominant respiratory isoprenoid quinone of strain R3-44 T was ubiquinone-8 (Q-8), which was consistent with other members of the genus Chitinimonas [1][2][3][4][5][6]. The major fatty acids (relative amount >7.0 %) of strain R3-44 T were summed feature 3 (comprising C 16 : 1 ω7c and/or C 16 : 1 ω6c, 40.6 %) and C 16 : 0 (29.3 %).…”

“…†Data from Padakandla and Chae. [4]. ‡Summed features are groups of two or three fatty acids that could not be separated by GLC with the midi system.…”

“…net/ chitinimonas. html), including Chitinimonas taiwanensis [1], Chitinimonas koreensis [2], Chitinimonas viridis [3], Chitinimonas naiadis [4], Chitinimonas lacunae [5] and Chitinimonas prasina [6]. Members of the genus Chitinimonas are aerobic, rod-shaped, Gram-stain-negative, chitinolytic-active, motile by polar flagellum, negative for indole production and glucose fermentation, and may or may not hydrolyse aesculin, gelatin and urea [1,2].…”

Parachitinimonas caeni gen. nov., sp. nov., a novel member of family Burkholderiaceae isolated from activated sludge collected in Shenzhen, PR China

“…The genus Chitinimonas was first isolated from a shrimp-farming pond and proposed to represent a distinct genus within the family Burkholderiaceae with the unique ability to degrade chitin [9]. Currently, seven species have been recognized within the genus Chitinimonas : Chitinimonas taiwanensis [9], Chitinimonas koreensis [10], Chitinimonas viridis [11], Chitinimonas prasina [12], Chitinimonas naiadis [13], Chitinimonas lacunae [14] and Chitinimonas arctica [15]. The genus Chitinivorax was first isolated from a freshwater lake; only one species has been recognized within the genus Chitinivorax , namely Chitinivorax tropicus [16].…”