Leifsonia psychrotolerans sp. nov., a psychrotolerant species of the family Microbacteriaceae from Livingston Island, Antarctica
Ganzert, Lars and Bajerski, Felizitas and Mangelsdorf, Kai and Lipski, André and Wagner, Dirk,, 61, 1938-1943 (2011),
doi = https://doi.org/10.1099/ijs.0.021956-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A cold-tolerant, yellow-pigmented, Gram-positive, motile, facultatively anaerobic bacterial strain, LI1T, was isolated from a moss-covered soil from Livingston Island, Antarctica, near the Bulgarian station St. Kliment Ohridski. Comparative 16S rRNA gene sequence-based phylogenetic analysis placed the strain in a clade with the species Leifsonia kafniensis KFC-22T, Leifsonia pindariensis PON10T and Leifsonia antarctica SPC-20T, with which it showed sequence similarities of 99.0, 97.9 and 97.9 %, respectively. DNA–DNA hybridization revealed a reassociation value of 2.7 % with L. kafniensis LMG 24362T. The DNA G+C content of strain LI1T was 64.5 mol%. The growth temperature range was −6 to 28 °C, with optimum growth at 16 °C. Growth occurred in 0–5 % NaCl and at pH 4.5–9.5, with optimum growth in 1–2 % NaCl and at pH 5.5–6.5. The predominant fatty acids were anteiso-C15 : 0, C18 : 0 and iso-C15 : 0. The polar lipids were phosphatidylglycerol and diphosphatidylglycerol. Physiological and biochemical tests clearly differentiated strain LI1T from L. kafniensis. Therefore, a novel cold-tolerant species within the genus Leifsonia is proposed: Leifsonia psychrotolerans sp. nov. (type strain LI1T = DSM 22824T = NCCB 100313T).,
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