Related Experiment Video
Updated: Aug 18, 2026

Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment
Published on: February 27, 2021
Hyperthermophilic life at deep-sea hydrothermal vents
D Prieur1, G Erauso, C Jeanthon
1CNRS, Station Biologique, Roscoff, France.
Abstract:
The discovery of deep-sea hydrothermal vents in 1977 considerably modified the views on deep-sea biology. For the first time, an ecosystem totally based on primary production achieved by chemosynthetic bacteria was discovered. Besides the warm vents where dense invertebrate communities and their symbiotic bacteria are located, the "black smokers" venting fluids at temperatures up to 350 degrees C were also investigated by microbiologists. Several strains of hyperthermophilic Archaea (methanogens, sulfate-reducers, sulfur-reducers) were isolated from smokers and surrounding materials. Deep-sea isolates that have been totally described, have been assigned to new species, within genera previously found in coastal geothermally heated environments. However, some species appear to exist in both deep and shallow ecosystems. Some deep-sea hyperthermophiles appear to be adapted to hydrostatic pressure and showed a barophilic response. The distribution of hyperthermophiles in the hot ecosystems of the planet, and their adaptation to pressure are presented and discussed.
Related Concept Videos
Anoxygenic Phototrophic Bacteria
Hyperthermophilic Bacteria
Diversity of Archaea I
Diversity of Archaea III
Diversity of Archaea IV
Deep Sea Microbial Ecology

