Elucidation of the role of anaerobic respiration for the sulfur and nitrogen circulation in the ocean and Antarctic lakes

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The bacterial community structures of salt lakes in which haloclines exist differed between these three salt lakes, indicating that there were many unidentified bacteria, and that they were rich in biodiversity. The bacterial communities of eight freshwater lakes formed a simple structure, such as Thiomicrospira sp., which inhabits the ocean in polar regions and fall water around McMurdo Dry Valleys, becomes the predominant genus. Phylogenetic analysis revealed that these bacteria growing in salt and freshwater lakes were closely related genera. DMSP concentrations from phytoplankton and DMS and dissolved DMSP concentrations in the water samples are shown. There is a negative correlation between the abundance of DMSO-respiring bacteria and DMSP, there are many Marinobacter in the surface water.