@article{mbs:/content/journal/ijsem/10.1099/ijs.0.63078-0, author = "Montes, Ma Jesús and Mercadé, Elena and Bozal, Núria and Guinea, Jesús", title = "Paenibacillus antarcticus sp. nov., a novel psychrotolerant organism from the Antarctic environment", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "2004", volume = "54", number = "5", pages = "1521-1526", doi = "https://doi.org/10.1099/ijs.0.63078-0", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.63078-0", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = "An endospore-forming strain, 20CMT, was isolated from Antarctic sediment and identified as a member of the genus Paenibacillus on the basis of phenotypic and phylogenetic analyses. The organism stained Gram-variable and was facultatively anaerobic. Strain 20CMT was psychrotolerant, growing optimally at 10–15 °C. Like other Paenibacillus species, it contained anteiso-C15 : 0 as the major cellular fatty acid. The DNA G+C content was 40·7 mol%. 16S rRNA gene sequence analysis placed strain 20CMT within the Paenibacillus cluster, with a similarity value of 99·5 % to Paenibacillus macquariensis DSM 2T. DNA–DNA hybridization experiments between the Antarctic isolate and P. macquariensis DSM 2T revealed a reassociation value of 47 %, indicating that strain 20CMT and P. macquariensis DSM 2T belong to different species. Based on evaluation of morphological, physiological, chemotaxonomic and phylogenetic analyses, a novel species, Paenibacillus antarcticus sp. nov., is proposed; the type strain is 20CMT (=LMG 22078T=CECT 5836T).", }