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http://dx.doi.org/10.1097/01.NUMA.0000399677.43428.73 | DOI Listing |
Front Microbiol
April 2023
School of Molecular Sciences, Arizona State University, Tempe, AZ, United States.
Hot spring outflow channels provide geochemical gradients that are reflected in microbial community compositions. In many hot spring outflows, there is a distinct visual demarcation as the community transitions from predominantly chemotrophs to having visible pigments from phototrophs. It has been hypothesized that this transition to phototrophy, known as the photosynthetic fringe, is a result of the pH, temperature, and/or sulfide concentration gradients in the hot spring outflows.
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