@article {OBrien2015,
	title = {{Microbial biofilms associated with fluid chemistry and megafaunal colonization at post-eruptive deep-sea hydrothermal vents}},
	journal = {Deep-Sea Research Part II: Topical Studies in Oceanography},
	volume = {121},
	year = {2015},
	pages = {31{\textendash}40},
	abstract = {At deep-sea hydrothermal vents, reduced, super-heated hydrothermal fluids mix with cold, oxygenated seawater. This creates temperature and chemical gradients that support chemosynthetic primary production and a biomass-rich community of invertebrates. In late 2005/early 2006 an eruption occurred on the East Pacific Rise at 9{\textdegree}50'N, 104{\textdegree}17'W. Direct observations of the post-eruptive diffuse-flow vents indicated that the earliest colonizers were microbial biofilms. Two cruises in 2006 and 2007 allowed us to monitor and sample the early steps of ecosystem recovery. The main objective of this work was to characterize the composition of microbial biofilms in relation to the temperature and chemistry of the hydrothermal fluids and the observed patterns of megafaunal colonization. The area selected for this study had local seafloor habitats of active diffuse flow (in-flow) interrupted by adjacent habitats with no apparent expulsion of hydrothermal fluids (no-flow). The in-flow habitats were characterized by higher temperatures (1.6{\textendash}25.2 {\textdegree}C) and H2S concentrations (up to 67.3 {\textmu}M) than the no-flow habitats, and the microbial biofilms were dominated by chemosynthetic Epsilonproteobacteria. The no-flow habitats had much lower temperatures (1.2{\textendash}5.2 {\textdegree}C) and H2S concentrations (0.3{\textendash}2.9 {\textmu}M), and Gammaproteobacteria dominated the biofilms. Siboglinid tubeworms colonized only in-flow habitats, while they were absent at the no-flow areas, suggesting a correlation between siboglinid tubeworm colonization, active hydrothermal flow, and the composition of chemosynthetic microbial biofilms.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.1016/j.dsr2.2015.07.020},
	author = {O{\textquoteright}Brien, C E and Giovannelli, D and Govenar, B W and Luther, G W and Lutz, R A and Shank, T M and Vetriani, C}
}
@article {Scott2015,
	title = {{Microbial Iron Mats at the Mid-Atlantic Ridge and Evidence that Zetaproteobacteria May Be Restricted to Iron-Oxidizing Marine Systems}},
	journal = {PLoS ONE},
	volume = {10},
	number = {3},
	year = {2015},
	pages = {e0119284},
	abstract = {Chemolithoautotrophic iron-oxidizing bacteria play an essential role in the global iron cycle. Thus far, the majority of marine iron-oxidizing bacteria have been identified as Zetaproteobacteria, a novel class within the phylum Proteobacteria. Marine iron-oxidizing microbial communities have been found associated with volcanically active seamounts, crustal spreading centers, and coastal waters. However, little is known about the presence and diversity of iron-oxidizing communities at hydrothermal systems along the slow crustal spreading center of the Mid-Atlantic Ridge. From October to November 2012, samples were collected from rust-colored mats at three well-known hydrothermal vent systems on the Mid-Atlantic Ridge (Rainbow, Trans-Atlantic Geotraverse, and Snake Pit) using the ROV Jason II. The goal of these efforts was to determine if iron-oxidizing Zetaproteobacteria were present at sites proximal to black smoker vent fields. Small, diffuse flow venting areas with high iron(II) concentrations and rust-colored microbial mats were observed at all three sites proximal to black smoker chimneys. A novel, syringe-based precision sampler was used to collect discrete microbial iron mat samples at the three sites. The presence of Zetaproteobacteria was confirmed using a combination of 16S rRNA pyrosequencing and single-cell sorting, while light micros-copy revealed a variety of iron-oxyhydroxide structures, indicating that active iron-oxidizing communities exist along the Mid-Atlantic Ridge. Sequencing analysis suggests that these iron mats contain cosmopolitan representatives of Zetaproteobacteria, but also exhibit diversity that may be uncommon at other iron-rich marine sites studied to date. A meta-analysis of publically available data encompassing a variety of aquatic habitats indicates that Zetaproteobacteria are rare if an iron source is not readily available. This work adds to the growing understanding of Zetaproteobacteria ecology and suggests that this organism is likely locally restricted to iron-rich marine environments but may exhibit wide-scale geographic distribution, further underscoring the importance of Zetaproteobacteria in global iron cycling.},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	doi = {10.1371/journal.pone.0119284},
	author = {Scott, J J and Breier, J A and Luther, G W and Emerson, D}
}
@article {Luther2005,
	title = {{Metal sulfide cluster complexes and their biogeochemical importance in the environment}},
	journal = {Journal of Nanoparticle Research},
	volume = {7},
	number = {4-5},
	year = {2005},
	pages = {389{\textendash}407},
	issn = {1388-0764},
	doi = {10.1007/s11051-005-4272-4},
	url = {http://dx.doi.org/10.1007/s11051-005-4272-4},
	author = {Luther, G W and Rickard, D T}
}
@article {Reysenbach2000,
	title = {{Microbial essentials at hydrothermal vents}},
	journal = {Nature},
	volume = {404},
	number = {6780},
	year = {2000},
	pages = {835},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0028-0836},
	doi = {10.1038/35009029},
	url = {http://dx.doi.org/10.1038/35009029},
	author = {Reysenbach, A -L and Banta, A B and Boone, D R and Cary, S C and Luther, G W}
}
