Draft genome of amylolytic actinobacterium, Sinomonas humi MUSC 117(T) isolated from intertidal soil

Sinomonas terricola sp. nov., a plant-beneficial bacterium isolated from litchi rhizosphere soil in Guangdong, China

A novel plant-beneficial bacterium strain, designated as JGH33T, which inhibited Peronophythora litchii sporangia germination, was isolated on Reasoner's 2A medium from a litchi rhizosphere soil sample collected in Gaozhou City, Guangdong Province, PR China. Cells of strain JGH33T were Gram-stain-positive, aerobic, non-motile, bent rods. The strain grew optimally at 30-37 °C and pH 6.0-8.0. Sequence similarity analysis based on 16S rRNA genes indicated that strain JGH33T exhibited highest sequence similarity to Sinomonas albida LC13T (99.2 %). The genomic DNA G+C content of the isolate was 69.1 mol%. The genome of JGH33T was 4.7 Mbp in size with the average nucleotide identity value of 83.45 % to the most related reference strains, which is lower than the species delineation threshold of 95 %. The digital DNA-DNA hybridization of the isolate resulted in a relatedness value of 24.9 % with its closest neighbour. The predominant respiratory quinone of JGH33T was MK-9(H2). The major fatty acids were C15 : 0 anteiso (43.4 %), C16 : 0 iso (19.1 %) and C17 : 0 anteiso (19.3 %), and the featured component was C18 : 3 ω6c (1.01 %). The polar lipid composition of strain JGH33T included diphosphatidylglycerol, phosphatidylglycerol, dimannosylglyceride, phosphatidylinositol and glycolipids. On the basis of polyphasic taxonomy analyses data, strain JGH33T represents a novel species of the genus Sinomonas, for which the name Sinomonas terricola sp. nov. is proposed, with JGH33T (=JCM 35868T=GDMCC 1.3730T) as the type strain.

Characterization of Sinomonas gamaensis sp. nov., a Novel Soil Bacterium with Antifungal Activity against Exserohilum turcicum

A novel Gram staining positive, aerobic bacterium NEAU-HV1^T that exhibits antifungal activity against Exserohilum turcicum was isolated from a soil collected from Gama, Hadjer lamis, Chad. It was grown at 10–45 °C (optimum 30 °C), pH 5–10 (optimum pH 8), and 0–4% (w/v) NaCl (optimum 1%). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain NEAU-HV1^T was closely related to Sinomonas susongensis A31^T (99.24% sequence similarity), Sinomonas humi MUSC 117^T (98.76%), and Sinomonas albida LC13^T (98.68%). The average nucleotide identity values between NEAU-HV1^T and its most closely related species were 79.34−85.49%. The digital DNA–DNA hybridization values between NEAU-HV1^T and S. susongensis A31^T, S. albida LC13^T, and S. humi MUSC 117^T were 23.20, 23.50, and 22.80%, respectively, again indicating that they belonged to different taxa. The genomic DNA G+C content was 67.64 mol%. The whole cell sugars contained galactose, mannose, and rhamnose. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, and four glycolipids. The respiratory quinone system comprised MK-9(H₂), MK-10(H₂), and MK-8(H₂). The major cellular fatty acids (>5%) were anteiso-C_15:0, anteiso-C_17:0, C_16:0, and iso-C_15:0. Based on the polyphasic analysis, it is suggested that the strain NEAU-HV1^T represents a novel species of the genus Sinomonas, for which the name Sinomonas gamaensis sp. nov. is proposed. The type strain is NEAU-HV1^T (= DSM 104514^T = CCTCC M 2017246^T).

Draft Genome Sequence of MPKL 26, the Type Strain of the Novel Species Sinomonas mesophila

Sinomonas mesophila MPKL 26^T can produce silver nanoparticles. Here, we present the 4.0-Mb genome of this type strain, which contains 47 scaffolds with an N₅₀ scaffold length of 261,266 bp. The availability of the genome sequence will provide a better understanding of strain MPKL 26^T and the genus Sinomonas.