Journal
JOURNAL OF MICROBIOLOGY
Volume 53, Issue 7, Pages 429-434Publisher
MICROBIOLOGICAL SOCIETY KOREA
DOI: 10.1007/s12275-015-5008-5
Keywords
Cytophagaceae; Spirosoma montaniterrae; radiation-resistant; taxonomy
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Funding
- Seoul Women's University
- National Institute of Biological Resources (NIBR) - Ministry of Environment (MOE) of the Republic of Korea [NIBR201501113]
- Ministry of Environment (ME), Republic of Korea [NIBR201501113] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A Gram-negative, yellow-pigmented, long-rod shaped bacterial strain designated DY10(T) was isolated from a soil sample collected at Mt. Deogyusan, Jeonbuk province, South Korea. Optimum growth observed at 30A degrees C and pH 7. No growth was observed above 1% (w/v) NaCl. Comparative 16S rRNA gene sequence analysis showed that strain DY10(T) belonged to the genus Spirosoma and was distantly related to Spirosoma arcticum R2-35(T) (91.0%), Spirosoma lingual DSM 74(T) (90.8%), Spirosoma endophyticum EX36(T) (90.7%), Spirosoma panaciterrae DSM 21099(T) (90.5%), Spirosoma rigui WPCB118(T) (90.2%), Spirosoma spitsbergense DSM 19989(T) (89.8%), Spirosoma luteum DSM 19990(T) (89.6%), Spirosoma oryzae RHs22(T) (89.6%), and Spirosoma radiotolerans DG5A(T) (89.1%). Strain DY10(T) showed resistance to gamma and ultraviolet radiation. The chemotaxonomic characteristics of strain DY10(T) were consistent with those of the genus Spirosoma, with the quinone system with MK-7 as the predominant menaquinone, iso-C-15:0, C-16:1 omega 5c, and summed feature3 (C-16:1 omega 7c/C-16:1 omega 6c), and phosphatidylethanolamine as the major polar lipid. The G+C content of the genomic DNA was 53.0 mol%. Differential phenotypic properties with the closely related type strains clearly distinguished strain DY10(T) from previously described members of the genus Spirosoma and represents a novel species in this genus, for which the name Spirosoma montaniterrae sp. nov. is proposed. The type strain is DY10(T) (=KCTC 23999(T) =KEMB 9004-162(T) =JCM 18492(T)).
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