期刊
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
卷 114, 期 2, 页码 161-168出版社
SPRINGER
DOI: 10.1007/s10482-020-01509-z
关键词
Novel species; Taxonomy; Radiation-resistant; Chitinophagaceae
类别
资金
- Seoul Women's University
- MISP (Ministry of Science, ICT & Future Planning), Korea, under the National Program for Excellence in SW [2016-0-00022]
- National Institute of Biological Resources (NIBR) - Ministry of Environment (MOE) of the Republic of Korea [NIBR201801204]
- Ministry of Environment (ME), Republic of Korea [NIBR201801204] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The bacterium strain 17J28-1(T) isolated from soil in Jeju Island, Korea represents a novel genus and species in the family Chitinophagaceae, named Pseudocnuella soli gen. nov. sp. nov. It shows specific growth advantages and resistance under certain conditions.
A Gram-stain negative, aerobic, rod-shaped, yellow-coloured bacterium, designated strain 17J28-1(T), was isolated from soil of Jeju Island, Korea. Optimal growth was found to occur at 30 degrees C, at pH 6.0 and in the absence of NaCl on R2A at 30 degrees C. Strain 17J28-1(T) showed resistance to UV-radiation. The draft genome sequence of strain 17J28-1(T) is 4804,510 bp long with a 49.4% G + C content. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain 17J28-1(T) forms a distinct lineage within the family Chitinophagaceae (order Chitinophagales, class Chitinophagia) and is closely related to Cnuella takakiae (93.7% 16S rRNA gene sequence similarity) and Flavisolibacter ginsengiterrae (93.1%). In addition, genomic comparison using digital DNA-DNA hybridization (dDDH) and OrthoANI analyses between the novel organism and the members of the family Chitinophagaceae revealed identities of 65.5-74.1% and 18.1-28%, respectively. The predominant cellular fatty acids were identified as C-15:0 iso, C-15:1 iso G and C-17:0 iso 3-OH and the major respiratory quinone as MK-7. Based on these data we propose that strain 17J28-1(T) (= KCTC 62223(T) = JCM 33202(T)) represents a novel genus and species in the family Chitinophagaceae, for which the name Pseudocnuella soli gen. nov. sp. nov. is proposed.
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