期刊
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷 69, 期 5, 页码 2893-2898出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.69.5.2893-2898.2003
关键词
-
We examined the population of unicellular cyanobacteria (Synechococcus) in the upper 3-mm vertical interval of a 68degreesC region of a microbial mat in a hot spring effluent channel (Yellowstone National Park, Wyoming). Fluorescence microscopy and microsensor measurements of O-2 and oxygenic photosynthesis demonstrated the existence of physiologically distinct Synechococcus populations at different depths along a light gradient quantified by scalar irradiance microprobes. Molecular methods were used to evaluate whether physiologically distinct populations could be correlated with genetically distinct populations over the vertical interval. We were unable to identify patterns in genetic variation in Synechococcus 16S rRNA sequences that correlate with different vertically distributed populations. However, patterns of variation at the internal transcribed spacer locus separating 16S and 23S rRNA genes suggested the existence of closely related but genetically distinct populations corresponding to different functional populations occurring at different depths.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据