Guaymas Basin, a Hydrothermal Hydrocarbon Seep Ecosystem

2020 ◽  
pp. 43-68
Author(s):  
Andreas Teske
Keyword(s):  
Hydrocarbon Seep ◽  
Guaymas Basin

scholarly journals Degradation of biological macromolecules supports uncultured microbial populations in Guaymas Basin hydrothermal sediments

2021 ◽  
Author(s):  
Sherlynette Pérez Castro ◽  
Mikayla A. Borton ◽  
Kathleen Regan ◽  
Isabella Hrabe de Angelis ◽  
Kelly C. Wrighton ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Extracellular Enzyme ◽  
Trophic Levels ◽  
Glycoside Hydrolases ◽  
Biological Macromolecules ◽  
Guaymas Basin ◽  
Bacterial Phyla ◽  
Sugar Transporters ◽  
Hydrothermal Sediments ◽  
Thermophilic Conditions

AbstractHydrothermal sediments contain large numbers of uncultured heterotrophic microbial lineages. Here, we amended Guaymas Basin sediments with proteins, polysaccharides, nucleic acids or lipids under different redox conditions and cultivated heterotrophic thermophiles with the genomic potential for macromolecule degradation. We reconstructed 20 metagenome-assembled genomes (MAGs) of uncultured lineages affiliating with known archaeal and bacterial phyla, including endospore-forming Bacilli and candidate phylum Marinisomatota. One Marinisomatota MAG had 35 different glycoside hydrolases often in multiple copies, seven extracellular CAZymes, six polysaccharide lyases, and multiple sugar transporters. This population has the potential to degrade a broad spectrum of polysaccharides including chitin, cellulose, pectin, alginate, chondroitin, and carrageenan. We also describe thermophiles affiliating with the genera Thermosyntropha, Thermovirga, and Kosmotoga with the capability to make a living on nucleic acids, lipids, or multiple macromolecule classes, respectively. Several populations seemed to lack extracellular enzyme machinery and thus likely scavenged oligo- or monomers (e.g., MAGs affiliating with Archaeoglobus) or metabolic products like hydrogen (e.g., MAGs affiliating with Thermodesulfobacterium or Desulforudaceae). The growth of methanogens or the production of methane was not observed in any condition, indicating that the tested macromolecules are not degraded into substrates for methanogenesis in hydrothermal sediments. We provide new insights into the niches, and genomes of microorganisms that actively degrade abundant necromass macromolecules under oxic, sulfate-reducing, and fermentative thermophilic conditions. These findings improve our understanding of the carbon flow across trophic levels and indicate how primary produced biomass sustains complex and productive ecosystems.

Hydrocarbon-seep deposits in the lower Permian Angie Formation, Central Lhasa Block, Tibet

2021 ◽  
Vol 90 ◽  
pp. 258-272
Author(s):  
Chao Liu ◽  
Xianyin An ◽  
Thomas J. Algeo ◽  
Axel Munnecke ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Lower Permian ◽  
Hydrocarbon Seep

scholarly journals Noble gases in sediment pore water yield insights into hydrothermal fluid transport in the northern Guaymas Basin

2021 ◽  
Vol 434 ◽  
pp. 106419
Author(s):  
E. Horstmann ◽  
Y. Tomonaga ◽  
M.S. Brennwald ◽  
M. Schmidt ◽  
V. Liebetrau ◽  
...  
Keyword(s):  
Pore Water ◽  
Hydrothermal Fluid ◽  
Fluid Transport ◽  
Noble Gases ◽  
Water Yield ◽  
Sediment Pore Water ◽  
Guaymas Basin

Hydrocarbon seep monitoring using in situ deep sea mass spectrometry

2005 ◽  
Author(s):  
G.M. McMutrtry ◽  
J.C. Wiltshire ◽  
A. Bossuyt
Keyword(s):  
Mass Spectrometry ◽  
Deep Sea ◽  
Hydrocarbon Seep

scholarly journals Effects of Temperature and Pressure on Sulfate Reduction and Anaerobic Oxidation of Methane in Hydrothermal Sediments of Guaymas Basin

2004 ◽  
Vol 70 (2) ◽  
pp. 1231-1233 ◽  
Author(s):  
Jens Kallmeyer ◽  
Antje Boetius
Keyword(s):  
Sulfate Reduction ◽  
Deep Sea ◽  
Anaerobic Oxidation Of Methane ◽  
Anaerobic Oxidation ◽  
Guaymas Basin ◽  
Oxidation Of Methane ◽  
Hydrothermal Sediments ◽  
Deep Sea Sediments ◽  
Effects Of Temperature ◽  
Temperature And Pressure

ABSTRACT Rates of sulfate reduction (SR) and anaerobic oxidation of methane (AOM) in hydrothermal deep-sea sediments from Guaymas Basin were measured at temperatures of 5 to 200°C and pressures of 1 × 105, 2.2 × 107, and 4.5 × 107 Pa. A maximum SR of several micromoles per cubic centimeter per day was found at between 60 and 95°C and 2.2 × 107 and 4.5 × 107 Pa. Maximal AOM was observed at 35 to 90°C but generally accounted for less than 5% of SR.

scholarly journals Biosphere frontiers of subsurface life in the sedimented hydrothermal system of Guaymas Basin

2014 ◽  
Vol 5 ◽  
Author(s):  
Andreas Teske ◽  
Amy V. Callaghan ◽  
Douglas E. LaRowe
Keyword(s):  
Hydrothermal System ◽  
Guaymas Basin

Gulf of Mexico hydrocarbon seep communities: VI. Patterns in community structure and habitat

1990 ◽  
Vol 10 (4) ◽  
pp. 244-252 ◽  
Author(s):  
I. Rosman MacDonald ◽  
Norman L. Guinasso ◽  
James F. Reilly ◽  
James M. Brooks ◽  
W. Russell Callender ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Hydrocarbon Seep
Sign in / Sign up

Export Citation Format

Share Document