Paenibacillus hamazuiensis sp. nov., a bacterium isolated from Hamazui hot spring in Yunnan province, south-west China

A bacterial strain, Gram-positive, aerobic, rod-shaped, motile, designated YIM B00624(T) which was isolated from a Hamazui hot spring in Tengchong, Yunnan province, south-west China. The strain grew well on International Streptomyces Project (ISP) 2 medium and colonies were creamy yellow, flat and circular. The results of 16S rRNA gene sequence similarity analysis showed that strain YIM B00624(T) was closely related to the type strain of Paenibacillus filicis S4(T) (95.9%). The main menaquinone of strain YIM B00624(T) was menaquinone-7 (MK-7) and major fatty acids were anteiso-C-15:0, anteiso-C-17:0 and C-16:0. The isolate contained meso-diaminopimelic acid as the diagnostic diamino acid and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine and four unidentified glycolipids. The DNA G+C content of strain YIM B00624(T) was 53.4 mol%. Based on physiological, phenotypic and chemotaxonomic data, strain YIM B00624(T) belongs to a novel species of the genus Paenibacillus, for which the name Paenibacillus hamazuiensis sp. nov. is proposed. The type strain is YIM B00624(T) (= CGMCC 1.19245(T) = KCTC 43365(T)).

Automated summary

The bacterial strain YIM B00624(T) isolated from a hot spring in Tengchong, Yunnan province, China, belongs to the genus Paenibacillus. It exhibits specific characteristics such as growth on specific medium, major fatty acids, diagnostic amino acid, and major polar lipids. The strain represents a novel species within the genus based on physiological, phenotypic, and chemotaxonomic data, thus proposed to be named Paenibacillus hamazuiensis.