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The present study investigated the influence of abiotic conditions on microbial mat communities from Shark Bay, a World Heritage area well known for a diverse range of extant mats presenting structural similarities with ancient stromatolites. The distributions and stable carbon isotopic values of lipid biomarkers [aliphatic hydrocarbons and polar lipid fatty acids (PLFAs)] and bulk carbon and nitrogen...
Vesicomyidae clams harbor sulfide‐oxidizing endosymbionts and are typical members of cold seep communities where active venting of fluids and gases takes place. We investigated the central biogeochemical processes that supported a vesicomyid clam colony as part of a locally restricted seep community in the Japan Trench at 5346 m water depth, one of the deepest seep settings studied to date. An integrated...
Zodletone spring in Oklahoma is a unique environment with high concentrations of dissolved‐sulfide (10 mm) and short‐chain gaseous alkanes, exhibiting characteristics that are reminiscent of conditions that are thought to have existed in Earth’s history, in particular the late Archean and early‐to‐mid Proterozoic. Here, we present a process‐oriented investigation of the microbial community in two...