RT Journal Article SR Electronic(1) A1 Moya, Gabriela A1 Yan, Zheng-Fei A1 Won, KyungHwa A1 Yang, Jung-Eun A1 Wang, Qi-Jun A1 Kook, MooChang A1 Yi, Tae-HooYR 2017 T1 Caulobacter hibisci sp. nov., isolated from rhizosphere of Hibiscus syriacus L. (Mugunghwa flower) JF International Journal of Systematic and Evolutionary Microbiology, VO 67 IS 9 SP 3167 OP 3173 DO https://doi.org/10.1099/ijsem.0.002021 PB Microbiology Society, SN 1466-5034, AB A Gram-stain-negative, smooth, bright yellow-pigmented, aerobic, catalase- and oxidase-positive and rod-shaped bacterial strain was isolated from rhizosphere of Hibiscus syriacus L. (Mugunghwa flower) located in Kyung Hee University, Yongin, Gyeonggi, South Korea. Cells were dimorphic, non-motile or non-stalked, and motile by means of peritrichous flagellum. The strain, named THG-AG3.4T, grew at 15–35 °C, at pH 6.5–9.0 and in the presence of 0–1.5 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain THG-AG3.4T was most closely related to Caulobacter segnis ATCC 21756T (98.64 % similarity), Caulobacter vibrioides CB51T (98.57 %) and Caulobacter henricii ATCC 15253T (97.41 %). The DNA G+C content of strain THG-AG3.4T was 64.0 mol%. In DNA–DNA hybridization, the DNA–DNA relatedness between strain THG-AG3.4T and its closest phylogenetic neighbour was below 55.0 %. The predominant isoprenoid quinone detected in strain THG-AG3.4T was ubiquinone-10 (Q-10). The major polar lipids were found to be an unidentified lipid, two unidentified phosphoglycolipids, five unidentified glycolipids, eight unidentified aminolipids and phosphatidylglycerol. The major fatty acids were C16 : 0, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). Thus, based on the report of the phenotypic, genotypic and phylogenetic characterization of strain THG-AG3.4T, it has been concluded that the isolate represents a novel species of the genus Caulobacter , for which the name Caulobacter hibisci sp. nov. is proposed. The type strain is THG-AG3.4T (=KACC 18849T=CCTCC AB 2016077T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002021