Paenibacillus algorifonticola sp. nov., isolated from a cold spring.

A Gram-stain-positive, endospore-forming, rod-shaped bacterium, designated XJ259(T), was isolated from a cold spring sample from Xinjiang Uyghur Autonomous Region, China. The isolate grew optimally at 20-30 °C and pH 7.3-7.8. Comparative analysis of the 16S rRNA gene sequence showed that isolate XJ259(T) belonged phylogenetically to the genus Paenibacillus, and was most closely related to Paenibacillus xinjiangensis B538(T) (with 96.6 % sequence similarity), Paenibacillus glycanilyticus DS-1(T) (96.3 %) and Paenibacillus castaneae Ch-32(T) (96.1 %), sharing less than 96.0 % sequence similarity with all other members of the genus Paenibacillus. Chemotaxonomic analysis revealing menaquinone-7 (MK-7) as the major isoprenoid quinone, diphosphatidylglycerol, phosphatidylethanolamine and two unknown phosphoglycolipids as the major cellular polar lipids, a DNA G+C content of 47.0 mol%, and anteiso-C₁₅:₀ and C₁₆:₀ as the major fatty acids supported affiliation of the new isolate to the genus Paenibacillus. Based on these data, isolate XJ259(T) is considered to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus algorifonticola sp. nov. is proposed. The type strain is XJ259(T) ( = CGMCC 1.10223(T)  = JCM 16598(T)).