The microbial community structure and nitrogen cycle of high-altitude pristine saline lakes on the Qinghai-Tibetan plateau.

The nitrogen (N) cycle is the foundation of the biogeochemistry on Earth and plays a crucial role in global climate stability. It is one of the most important nutrient cycles in high-altitude lakes. The biogeochemistry of nitrogen is almost entirely dependent on redox reactions mediated by microorganisms.

Parerythrobacter aestuarii sp. nov., Isolated from Seawater in the Tidal Region of Taizhou.

A yellow, Gram-stain-negative, aerobic, and rod-shaped strain, designated as C18, was isolated from seawater in the tidal region of Taizhou. Growth of strain C18 occurs at 20-45 °C, at pH 5.5-8.

Parerythrobacter lacustris sp. nov., a novel member of the family Erythrobacteraceae isolated from an inland alpine lake.

A novel bacterium, designated as strain RS5-5, was isolated from lake water in northwestern China. Cells of the isolate were observed to be rod shaped and Gram stain negative. Its growth occurred at 4-37 ℃, pH 6.

sp. nov., isolated from landfill leachate.

Bacterial strain Y-6, isolated from a landfill site in Yiwu, PR China, was characterized using a polyphasic taxonomy approach. Cells were Gram-stain-negative, aerobic, rod-shaped, motile by means of a single polar flagellum and formed pale beige colonies. Strain Y-6 grew at 4-40 °C (optimal at 30-37 °C), pH 6.

sp. nov., a yellow-pigmented bacterium isolated from lake water.

A Gram-negative, non-motile, facultatively anaerobic, rod-shaped bacterium, designated strain RS1-74, was isolated from the surface water of Sayram Lake, Xinjiang Uygur Autonomous Region, China. The strain was able to grow optimally at 30 °C and pH 7.0-7.

sp. nov., isolated from intertidal seawater in Taizhou.

A Gram-stain-negative, aerobic, chemoheterotrophic and rod-shaped strain, designated as C5, was isolated from intertidal surface seawater in Taizhou, Zhejiang Province, PR China and characterized using a polyphasic taxonomic approach. Strain C5 could produce carotenoids and bacteriochlorophyll . Growth was observed at 20-45 °C, at pH 6.

Limnobacter parvus sp. nov., a Thiosulfate-Oxidizing Bacterium Isolated from Lake Water.

A novel bacterium, designated as strain YS8-69, was isolated from an inland closed lake, Xinjiang Uygur Autonomous Region, PR China. Comparative analysis of the 16S rRNA gene sequence shows the strain was affiliated to the genus Limnobacter, in the family Burkholderiaceae, with the highest similarities to Limnobacter alexandrii LZ-4 (98.93%), Limnobacter thiooxidans DSM 13612 (98.

Gramella crocea sp. nov., isolated from activated sludge of a seafood processing plant.

A novel aerobic Gram-negative strain, designated as YB25, was isolated from an activated sludge sample collected from a seafood processing plant in Zhoushan, Zhejiang Province, China, and characterized by using a polyphasic taxonomic approach in this study. Strain YB25 was motile by gliding, and short-rod-shaped. The isolate grew at 4-37 °C (optimum 28 °C), pH 6.

Description of two novel anaerobic members in the family , gen.nov., sp. nov., and sp. nov., isolated from saline lake sediment.

Cells of members of the family , phylum , are generally obligate anaerobic rods. Strains D2Q-14 and D2Q-11 were isolated from sediment of the saline lake Manisi in the Xinjiang Uygur Autonomous Region, PR China. In this study, we employed a polyphasic approach and whole genome analysis of the two isolates.

Marinobacter caseinilyticus sp. nov., Isolated from Saline Soil.

A Gram-stain-negative, motile, aerobic, rod-shaped bacterium with flagella, designated M3-13, was isolated from a saline soil in Zhoushan, China. According to phylogenetic analysis based on 16S rRNA gene sequences, strain M3-13 was assigned to the genus Marinobacter with highest 16S rRNA gene sequence similarity of 97.7% to Marinobacter maroccanus LMG 30466, followed by Marinobacter sediminum R65 (97.

Description of Erythrobacter mangrovi sp. nov., an aerobic bacterium from rhizosphere soil of mangrove plant (Kandelia candel).

A novel Gram-stain negative, aerobic, non-motile, rod-shaped bacterium, designated as strain EB310, was isolated from rhizosphere soil of mangrove plant Kandelia candel in Fugong village, Zhangzhou, China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain EB310 belonged to the genus Erythrobacter, clustering with Erythrobacter pelagi JCM 17468, Erythrobacter lutimaris KCTC 42109 and Erythrobacter marisflavi KCTC 62896, and showed the highest 16S rRNA gene sequence similarity of 97.5% to Erythrobacter pelagi JCM 17468.

Alteromonas alba sp. nov., a marine bacterium isolated from seawater of the West Pacific Ocean.

A Gram-stain-negative, strictly aerobic, motile by one polar flagellum, non-spore-forming, rod-shaped bacterium, designated as 190, was isolated from seawater of the West Pacific Ocean and subjected to a polyphasic taxonomic investigation. Colonies were 1.0-2.

Marinobacter fuscus sp. nov., a marine bacterium of Gammaproteobacteria isolated from surface seawater.

A Gram-stain-negative bacterium, designated NH169-3, was isolated from a surface seawater sample of the South China Sea and subjected to a taxonomic polyphasic investigation. Strain NH169-3 was strictly aerobic, non-motile, non-spore-forming and rod-shaped. The colony was 1.

Maribacter cobaltidurans sp. nov., a heavy-metal-tolerant bacterium isolated from deep-sea sediment.

A Gram-stain-negative, aerobic, non-motile and rod-shaped bacterium, designated B1, was isolated from deep-sea sediment collected from the South Atlantic Ocean. Cells of strain B1 grew in medium containing 0.5-6.

Aquaticitalea lipolytica gen. nov., sp. nov., isolated from Antarctic seawater.

A Gram-stain-negative, rod-shaped bacterium, designated Ar-125, was isolated from Antarctic seawater. It produced carotenoid-like pigments and did not produce Bchl a. Ar-125 was positive for hydrolysis of DNA, aesculin, gelatin, starch, Tween 40 and Tween 60.

Marinirhabdus gelatinilytica gen. nov., sp. nov., isolated from seawater.

A Gram-stain-negative, aerobic and slightly halophilic bacterium was isolated from the South China Sea, and was subjected to characterization using a polyphasic taxonomic approach. Cells of the isolate, designated NH83T, were non-motile and rod-shaped. On the basis of 16S rRNA gene sequence analysis, strain NH83Twas closely related to members of the genera Aureisphaera (with sequence similarity of 92.