gen. nov., sp. nov., a new member of suborder isolated from High Arctic tundra soil.

A yellow bacterial strain, designated LRZ-2, was isolated from High Arctic tundra near the settlement Ny-Ålesund in the Svalbard Archipelago, Norway. The cells were Gram-stain-positive, aerobic and non-sporulating. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain LRZ-2 represented a novel member of the suborder .

Deinococcus taklimakanensis sp. nov., isolated from desert soil.

A gamma- and UV radiation-tolerant, Gram-negative, short-rod-shaped bacterial strain, designated X-121, was isolated from soil samples collected from the Taklimakan desert in Xinjiang, China. Strain X-121 showed the highest 16S rRNA gene sequence similarity with Deinococcus depolymerans TDMA-24 (94.7 %).

Sphingomonas antarctica sp. nov., isolated from Antarctic tundra soil.

Strain 200, isolated from a soil sample taken from Antarctic tundra soil around Zhongshan Station, was found to be a Gram-stain-negative, yellow-pigmented, catalase-positive, oxidase-negative, non-motile, non-spore-forming, rod-shaped and aerobic bacterium. Strain 200 grew optimally at pH 7.0 and in the absence of NaCl on R2A.

Flavitalea antarctica sp. nov., isolated from Fildes Peninsula, Antarctica.

A bright-yellow, Gram-stain-negative, rod-shaped, gliding and aerobic bacterium, designated strain AQ6-291T, was isolated from the Fildes Peninsula, Antarctica, and its taxonomic position was investigated by genotypic, phenotypic and chemotaxonomic analyses. Growth occurred at 4-28 °C (optimum 20 °C) and at pH 5.0-8.

Hymenobacter rutilus sp. nov., isolated from marine sediment in the Arctic.

Strain K2-33028T, which appeared as a brick-red colony on an R2A plate, was isolated from a marine sediment sample from Kings Bay, Svalbard Archipelago, Norway. Phylogenetic analysis based on 16S rRNA gene sequences indicated that K2-33028T represented a member of the genus Hymenobacter. Cells were Gram-reaction-negative, non-spore-forming, aerobic, rod-shaped and without motility.

Terrimonas crocea sp. nov., isolated from the till of a high Arctic glacier.

A yellow-pigmented bacterial strain, designated M1-33108T, was isolated from the till of high Arctic glacier Midtre Lovénbreen near Ny-Ålesund, in the West Svalbard Archipelago, Norway. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain M1-33108T belonged to the genus Terrimonas and its closest neighbour was Terrimonas arctica R9-86T with 96.12 % 16S rRNA gene sequence similarity.

Roseomonas arcticisoli sp. nov., isolated from Arctic tundra soil.

A pale pink, Gram-reaction-negative, non-motile, aerobic bacterium, designated MC 3624T, was isolated from a tundra soil near Ny-Ålesund, Svalbard Archipelago, Norway (78° N). Growth occurred at 10-37 °C (optimum 25-30 °C) and at pH 6.0-9.

sp. nov., isolated from high-Arctic tundra soil, and emended descriptions of and .

A yellow, Gram-reaction-negative, non-motile, aerobic bacterium, designated D07, was isolated from a tundra soil near Ny-Ålesund, Svalbard archipelago, Norway (78° N). Growth occurred at 4-37 °C (optimum 28-30 °C) and at pH 6.0-9.

Sphingoaurantiacus polygranulatus gen. nov., sp. nov., isolated from high-Arctic tundra soil, and emended descriptions of the genera Sandarakinorhabdus, Polymorphobacter and Rhizorhabdus and the species Sandarakinorhabdus limnophila, Rhizorhabdus argentea and Sphingomonas wittichii.

An orange, Gram-reaction-negative and aerobic bacterium, designated MC 3718T, was isolated from a tundra soil near Ny-Ålesund, Svalbard archipelago, Norway (78° N). The cells were motile with either a polar or a subpolar flagellum and reproduced by budding or asymmetrical cell division. Growth occurred at 4-37 °C (optimum 28-30 °C) and at pH 6.

Risungbinella pyongyangensis gen. nov., sp. nov., a mesophilic member of the family Thermoactinomycetaceae isolated from an agricultural soil sample.

A mesophilic strain, designed MC 210T, was isolated from an agricultural soil sample from Pyongyang, Democratic People's Republic of Korea, and its taxonomic position was investigated by using a polyphasic approach. The novel strain grew well on PYI medium, and no diffusible pigments were produced. The optimum temperature for growth was 37 °C.

Luteolibacter arcticus sp. nov., isolated from high Arctic tundra soil, and emended description of the genus Luteolibacter.

A pale yellow, Gram-reaction-negative, non-motile, aerobic bacterium, designated MC 3726T, was isolated from a tundra soil near Ny-Ålesund, Svalbard Archipelago, Norway (78 °N). Growth occurred at 4-37 °C (optimum 25-30 °C) and at pH 5.0-9.