A Gram-stain-positive, non-spore-forming, yellow pigmented, non-motile, aerobic, short rod-shaped bacterial strain, designated CAU 1455, was isolated from marine sediment sand. Strain CAU 1455 grew optimally at 30 °C and at pH 7.5 in the presence of 1% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain CAU 1455 was affiliated to the genus Cellulosimicrobium and was most closely related to Cellulosimicrobium terreum DS-61 (similarity 97.9%). The strain possessed MK-9 (H) as the predominant menaquinone and anteiso-C as the major cellular fatty acids. Peptidoglycan type was A4a (L-Lys-D-Glu2). The DNA G+C content was 74.3 mol% and the level of DNA-DNA relatedness between CAU 1455 and C. terreum DS-61 was 27.8%. Based on phenotypic, chemotaxonomic, and genetic data, strain CAU 1455 represents a novel species of the genus Cellulosimicrobium, for which the name Cellulosimicrobium arenosum sp. nov. is proposed. The type strain is CAU 1455 (= KCTC 49039 = NBRC 113062).

A novel Gram-stain-positive, strictly aerobic, non-endospore-forming bacterium, designated CAU 9143, was isolated from a hydric soil sample collected from Seogmo Island in the Republic of Korea. Strain CAU 9143 grew optimally at 30 °C, at pH 7.0 and in the presence of 1 % (w/v) NaCl. The phylogenetic trees based on 16S rRNA gene sequences revealed that strain CAU 9143 belonged to the genus Arthrobacter and was closely related to Arthrobacter ginkgonis SYP-A7299 (97.1 % similarity). Strain CAU 9143 contained menaquinone MK-9 (H2) as the major respiratory quinone and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, two glycolipids and two unidentified phospholipids as the major polar lipids. The whole-cell sugars were glucose and galactose. The peptidoglycan type was A4a (l-Lys-D-Glu2) and the major cellular fatty acid was anteiso-C15 : 0. The DNA G+C content was 64.4 mol% and the level of DNA-DNA relatedness between CAU 9143 and the most closely related strain, A. ginkgonis SYP-A7299, was 22.3 %. Based on phenotypic, chemotaxonomic and genetic data, strain CAU 9143 represents a novel species of the genus Arthrobacter, for which the name Arthrobacterpaludis sp. nov. is proposed. The type strain is CAU 9143 (=KCTC 13958,=CECT 8917).

A Gram-stain-negative, orange-pigmented, non-spore-forming, non-motile, aerobic, rod-shaped bacterial strain, designated CAU 1131T, was isolated from reclaimed land. Strain CAU 1131T grew optimally at 30 °C and at pH 6.5 in the presence of 4 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain CAU 1131T was grouped into the genus Nonlabens, and was most closely related to Nonlabens. marinus S1-08T (95.9 % 16S rRNA gene sequence similarity). The strain possessed+ MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C15:0 3-OH, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) as the major cellular fatty acids. The polar lipid profile was determined to comprise phosphatidylethanolamine, phosphatidylcholine, an unidentified aminolipid, an unidentified glycolipid and two unidentified lipids. The DNA G+C content was 38.7 mol%. On the basis of data from phenotypic, chemotaxonomic and phylogenetic inference, strain CAU 1131T represents a novel species of the genus Nonlabens, for which the name Nonlabens halophilus sp. nov. is proposed. The type strain is CAU 1131T (=KCTC 52177T=NBRC 111996T).

A Gram-staining-negative, aerobic, non-motile, rod-shaped bacterial strain, designated CAU 1062T, was isolated from marine sand in Jeju island, Republic of Korea and its taxonomic position was investigated using a polyphasic approach. CAU 1062T grew optimally at 30 °C and pH 8 in the presence of 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that CAU 1062T formed a distinct lineage within the genus Tropicimonasand was the most closely related to Tropicimonas sediminicola M97T (similarity 96.11 %). The strain had ubiquinone-10 (Q-10) as the predominant respiratory quinone and C18 : 1ω7c as the major cellular fatty acid. The polar lipid pattern of CAU 1062T consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, an aminolipid, six phospholipids and five lipids. The DNA G+C content was 65.7 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, CAU 1062T represents a novel species of the genus Tropicimonas, for which the name Tropicimonas arenosa sp. nov. is proposed. The type strain is CAU 1062T (=KCTC 52178T=NBRC 111995T).