@article {RN2500,
	title = {Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California},
	journal = {PLOS ONE},
	volume = {16},
	number = {9},
	year = {2021},
	pages = {e0256321},
	type = {Journal Article},
	doi = {10.1371/journal.pone.0256321},
	url = {https://app.dimensions.ai/details/publication/pub.1140963870 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0256321\&type=printable},
	author = {Ram{\'\i}rez, Gustavo A. and Mara, Paraskevi and Sehein, Taylor and Wegener, Gunter and Chambers, Christopher R. and Joye, Samantha B. and Peterson, Richard N. and Philippe, Aur{\'e}lie and Burgaud, Ga{\"e}tan and Edgcomb, Virginia P. and Teske, Andreas P.}
}
@article {RN2451,
	title = {Microbial Communities Under Distinct Thermal and Geochemical Regimes in Axial and Off-Axis Sediments of Guaymas Basin},
	journal = {Frontiers in Microbiology},
	volume = {12},
	year = {2021},
	pages = {633649},
	type = {Journal Article},
	doi = {10.3389/fmicb.2021.633649},
	url = {https://app.dimensions.ai/details/publication/pub.1135332514 https://fjfsdata01prod.blob.core.windows.net/articles/files/633649/pubmed-zip/.versions/1/.package-entries/fmicb-12-633649/fmicb-12-633649.pdf?sv=2018-03-28\&sr=b\&sig=WKLBqhvZrkcj2oO6X4DtspOriwBM},
	author = {Teske, Andreas and Wegener, Gunter and Chanton, Jeffrey P. and White, Dylan and MacGregor, Barbara and Hoer, Daniel and de Beer, Dirk and Zhuang, Guangchao and Saxton, Matthew A. and Joye, Samantha B. and Lizarralde, Daniel and Soule, S. Adam and Ruff, S. Emil}
}
@article {ISI:000372952900002,
	title = {{Tracing the production and fate of individual archaeal intact polar lipids using stable isotope probing}},
	journal = {ORGANIC GEOCHEMISTRY},
	volume = {95},
	year = {2016},
	month = {may},
	pages = {13{\textendash}20},
	type = {Article},
	abstract = {Analysis of cellular membrane lipids has been widely applied to describe the microbial community composition in natural systems. When combined with stable isotope probing (SIP) experiments, deuterium label (D2O) uptake into lipids enables assessment of microbial biomass production. We performed SIP on methane-rich, hydrothermally-heated sediments to examine the de novo production of individual archaeal intact polar lipids (IPLs) by mesophilic anaerobic methane oxidizing group-1 archaea (ANME-1). The greatest extent of label uptake was by phosphatidyl glycerol archaeol (PG-AR), reaching 50{\%} of the medium{\textquoteright}s label concentration in only 10 days. This indicates PG-AR as an important cell membrane lipid during the active growth phase of mesophilic ANME-1. Much less label uptake was into intact polar glycerol dibiphytanyl glycerol tetraethers (GDGTs), especially for those bound to diglycosidic head groups. The low production of these GDGTs contrasts with their predominance in ANME-1-dominated natural samples. We attribute the differential label uptake among individual IPLs to the ANME-1 tetraether biosynthetic pathway. This mechanism likely involves head-to-head condensation of two molecules of PG-AR and progressive substitution of PG by glycosidic head groups. The observation that ANME-1 invest in the synthesis of diethers during optimum growth suggests intact ARs and/or phosphate-bearing tetraethers as important biomarkers for actively growing populations in natural environments, while the diglycosidic GDGTs appear to signal stationary ANME-1 communities. (C) 2016 Elsevier Ltd. All rights reserved.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0146-6380},
	doi = {10.1016/j.orggeochem.2016.02.004},
	author = {Kellermann, Matthias Y and Yoshinaga, Marcos Y and Wegener, Gunter and Krukenberg, Viola and Hinrichs, Kai-Uwe}
}
@article {ISI:000331366700001,
	title = {{Microbial habitat connec ivity across spatial scales and hydrothermal temperature gradients at Guaymas Basin}},
	journal = {FRONTIERS IN MICROBIOLOGY},
	volume = {4},
	year = {2013},
	month = {jul},
	type = {Article},
	abstract = {The Guaymas Basin (Gulf of California) hydrothermal vent area is known as a dynamic and hydrothermally vented sedimentary system, where the advection and production of a variety of different metabolic substrates support a high microbial diversity and activity in the seafloor. The main objective of our study was to explore the role of temperature and other environmental factors on community diversity, such as the presence of microbial mats and seafloor bathymetry within one hydrothermally vented field of 200 x 250 m dimension. In this field, temperature increased strongly with sediment depth reaching the known limit of life within a few decimeters. Potential sulfate reduction rate as a key community activity parameter was strongly affected by in situ temperature and sediment depth, declining from high rates of 1-5 jimol m1-1 d-1 at the surface to the detection limit below 5 cm sediment depth, despite the presence of sulfate and hydrocarbons. Automated Ribosomal lntergenic Spacer Analysis yielded a high-resolution fingerprint of the dominant members of the bacterial community. Our analyses showed strong temperature and sediment depth effects on bacterial cell abundance and Operational Taxonomic Units (OTUs) number, both declining by more than one order of magnitude below the top 5 cm of the sediment surface. Another fraction of the variation in diversity and community structure was explained by differences in the local bathymetry and spatial position within the vent field. Nevertheless, more than 80{\%} of all detected OTUs were shared among the different temperature realms and sediment depths, after being classified as cold (T {\textless} 10 C), medium (10 C {\textless} T {\textless} 40 C) or hot (T {\textgreater} 40 C) temperature conditions, with significant OTU overlap with the richer surface communities. Overall, this indicates a high connectivity of benthic bacterial habitats in this dynamic and heterogeneous marine ecosystem influenced by strong hydrothermalism.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {1664-302X},
	doi = {10.3389/fmicb.2013.00207},
	author = {Meyer, Stefanie and Wegener, Gunter and Lloyd, Karen G and Teske, Andreas and Boetius, Antje and Ramette, Alban}
}
@article {ISI:000299052400011,
	title = {{Thermophilic anaerobic oxidation of methane by marine microbial consortia}},
	journal = {ISME JOURNAL},
	volume = {5},
	number = {12},
	year = {2011},
	month = {dec},
	pages = {1946{\textendash}1956},
	type = {Article},
	abstract = {The anaerobic oxidation of methane (AOM) with sulfate controls the emission of the greenhouse gas methane from the ocean floor. AOM is performed by microbial consortia of archaea (ANME) associated with partners related to sulfate-reducing bacteria. In vitro enrichments of AOM were so far only successful at temperatures {\textless}= 25 degrees C; however, energy gain for growth by AOM with sulfate is in principle also possible at higher temperatures. Sequences of 16S rRNA genes and core lipids characteristic for ANME as well as hints of in situ AOM activity were indeed reported for geothermally heated marine environments, yet no direct evidence for thermophilic growth of marine ANME consortia was obtained to date. To study possible thermophilic AOM, we investigated hydrothermally influenced sediment from the Guaymas Basin. In vitro incubations showed activity of sulfate-dependent methane oxidation between 5 and 70 degrees C with an apparent optimum between 45 and 60 degrees C. AOM was absent at temperatures {\textgreater}= 75 degrees C. Long-term enrichment of AOM was fastest at 50 degrees C, yielding a 13-fold increase of methane-dependent sulfate reduction within 250 days, equivalent to an apparent doubling time of 68 days. The enrichments were dominated by novel ANME-1 consortia, mostly associated with bacterial partners of the deltaproteobacterial HotSeep-1 cluster, a deeply branching phylogenetic group previously found in a butane-amended 60 degrees C-enrichment culture of Guaymas sediments. The closest relatives (Desulfurella spp.; Hippea maritima) are moderately thermophilic sulfur reducers. Results indicate that AOM and ANME archaea could be of biogeochemical relevance not only in cold to moderate but also in hot marine habitats. The ISME Journal (2011) 5, 1946-1956; doi: 10.1038/ismej.2011.77; published online 23 June 2011},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {1751-7362},
	doi = {10.1038/ismej.2011.77},
	author = {Holler, Thomas and Widdel, Friedrich and Knittel, Katrin and Amann, Rudolf and Kellermann, Matthias Y and Hinrichs, Kai-Uwe and Teske, Andreas and Boetius, Antje and Wegener, Gunter}
}
