Title: Altererythrobacter soli sp. nov., isolated from desert sand sample

Authors: Qi Zhao, Hui-Ru Li, Qing-Qing Han, Ao-Lei He, Cong-Yuan Nie, Suo-Min Wang, Jin-Lin Zhang*(张金林)

Journal: International Journal of Systematic and Evolutionary Microbiology

Doi: 10.1099/ijsem.0.001652

Abstract: An alkaliphilic strain designed MN-1T was isolated from a desert sand sample collected from Tengger desert, north-western China. To delineate its taxonomic position, the Gram-staining-negative, rod-shaped, strictly aerobic bacterium, strain MN-1T was subjected to polyphasic taxonomic studies. Growth was observed at temperatures from 4 to 37 ?C (optimum 30 ?C and 32 ?C), at salinities from 0 to 2 % (optimum 1%) and at pH from 6.5 to 12.0 (optimum 7.0-9.0). Phylogenetic analysis based on 16S rRNA gene sequencing showed that the strain MN-1T was a member of the genus Altererythrobacter and distinguished from the recognized species of this genus. Compared to reference strains, the novel strain was flagellated and motile by means of polar flagella. The predominant respiratory quinone was ubiquinone-10 and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid, phosphatidylglycerol, phosphatidylcholine, one unidentified glycolipid, one unidentified phospholipid and four unidentified lipids. The predominant fatty acids were C18:1ω7c, summed feature 3 (C16:1ω7c and/or C16:1ω6c) and C16:0. These chemotaxonomic traits were in agreement with the characteristics of the genus Altererythrobacter. Strain MN-1T was most closely related to Altererythrobacter xinjiangensis S3-63T (96.9 % 16S rRNA gene sequence similarity), followed by Altererythrobacter dongtanensis JM27T (96.4 %) and Altererythrobacter marinus H32T (96.1 %). The G+C content of the genomic DNA of strain MN-1T was 67.0 mol%. On the basis of polyphasic taxonomy data, strain MN-1T is proposed as the type strain of a novel species of the genus Altererythrobacter, named as Altererythrobacter soli sp. nov. (= KCTC 52135T = MCCC 1K02066T).

链接：http://dx.doi.org/10.1099/ijsem.0.001652