Microbiota of the hydrothermal Guaymas Basin sediment interface profiled at millimeter-scale resolution

The surficial hydrothermal sediments of Guaymas Basin harbor unusually complex microbial communities where oxidative and reductive nitrogen, sulfur, and carbon-cycling populations and processes overlap and coexist. Here we resolve microbial community profiles in hydrothermal sediment cores of Guaymas Basin on a scale of 2 millimeters, using Denaturing Gradient Gel Electrophoresis to visualize the rapid downcore changes among dominant bacteria and archaea.

瓜伊马斯盆地（Guaymas Basin）的表层热液沉积物中栖息着异常复杂的微生物群落，该群落中参与氮、硫、碳氧化还原循环的微生物类群与代谢过程相互重叠并共存。本研究以2毫米的空间尺度，对瓜伊马斯盆地的热液沉积物岩芯进行微生物群落结构解析，通过变性梯度凝胶电泳（Denaturing Gradient Gel Electrophoresis）可视化优势细菌与古菌沿岩芯垂直方向的快速变化。