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An aerobic, Gram-stain-negative, rod-shaped bacterium (strain CC-ALB-1T) was isolated from the rhizosphere of Arabidopsis thaliana. Strain CC-ALB-1T was able to grow at 20–30 °C, pH 5.0–8.0 and with up to 1.0 % (w/v) NaCl. 16S rRNA gene sequence analysis showed that strain CC-ALB-1T had the highest sequence similarity to Chitinophaga ginsengisegetis Gsoil 040T (96.9 %) and Chitinophaga niastensis JS16-4T (96.7 %); lower levels of similarity (<97.0 %) were observed to strains of all other species of the genus Chitinophaga . The fatty acid profile consisted of iso-C15 : 0, iso-C17 : 0 3-OH, C15 : 1ω5c, C16 : 1ω5c and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The polar lipid profile contained phosphatidylethanolamine, two unidentified aminolipids and five unidentified lipids. The predominant quinone system was menaquinone 7 (MK-7). The DNA G+C content was 53.4±0.4 mol%. Based on its phylogenetic, phenotypic and chemotaxonomic features, strain CC-ALB-1T is proposed to represent a novel species within the genus Chitinophaga , for which the name Chitinophaga taiwanensis sp. nov. is proposed. The type strain is CC-ALB-1T ( = BCRC 80570T = JCM 18895T).
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