Results 31 to 40 of about 363 (122)

A paradox resolved: Sulfide acquisition by roots of seep tubeworms sustains net chemoautotrophy [PDF]

Proceedings of the National Academy of Sciences, 2000
Vestimentiferan tubeworms, symbiotic with sulfur-oxidizing chemoautotrophic bacteria, dominate many cold-seep sites in the Gulf of Mexico. The most abundant vestimentiferan species at these sites, Lamellibrachia cf.
J K, Freytag, P R, Girguis, D C, Bergquist, J P, Andras, J J, Childress, C R, Fisher   +5 more
openaire   +3 more sources

Chemoautotrophy at the Expense of Thiosulphate: A Supplementary Nutritional Source to the Mangrove Clam-Polymesoda Erosa [PDF]

, 2021
Abstract Chemolithoautotrophy is a primordial process, where chemical energy converts inorganic carbon to organic. The prevalence of chemosynthesis was examined in the mangrove clam, Polymesoda erosa, and the ambient sediment at Chorao Island, Mandovi estuary, Goa.
TresaRemya A Thomas, Tanya Singh, Tamil S Kalaimani, Nandakumar H Khadge, Mamatha S Shivaramu, Maria-Judith B-D Gonsalves, LokaBharathi P Adhikesavan   +6 more
openaire   +1 more source

Genomic comparisons of a bacterial lineage that inhabits both marine and terrestrial deep subsurface systems [PDF]

PeerJ, 2017
It is generally accepted that diverse, poorly characterized microorganisms reside deep within Earth’s crust. One such lineage of deep subsurface-dwelling bacteria is an uncultivated member of the Firmicutes phylum that can dominate molecular surveys from
Sean P. Jungbluth, Tijana Glavina del Rio, Susannah G. Tringe, Ramunas Stepanauskas, Michael S. Rappé   +4 more
doaj   +2 more sources

Eukaryotic Parasites Are Integral to a Productive Microbial Food Web in Oxygen-Depleted Waters

Frontiers in Microbiology, 2022
Oxygen-depleted water columns (ODWCs) host a diverse community of eukaryotic protists that change dramatically in composition over the oxic-anoxic gradient.
Elizabeth A. Suter, Elizabeth A. Suter, Maria Pachiadaki, Gordon T. Taylor, Virginia P. Edgcomb   +4 more
doaj   +1 more source

Hydrothermal activity, functional diversity and chemoautotrophy are major drivers of seafloor carbon cycling [PDF]

Scientific Reports, 2017
AbstractHydrothermal vents are highly dynamic ecosystems and are unusually energy rich in the deep-sea.In situhydrothermal-based productivity combined with sinking photosynthetic organic matter in a soft-sediment setting creates geochemically diverse environments, which remain poorly studied.
Bell, JB, Woulds, C, Oevelen, DV
openaire   +4 more sources

Mapping the microbial diversity associated with different geochemical regimes in the shallow-water hydrothermal vents of the Aeolian archipelago, Italy

Frontiers in Microbiology, 2023
Shallow-water hydrothermal vents are unique marine environments ubiquitous along the coast of volcanically active regions of the planet. In contrast to their deep-sea counterparts, primary production at shallow-water vents relies on both photoautotrophy ...
Bernardo Barosa, Alessandra Ferrillo, Matteo Selci, Marco Giardina, Alessia Bastianoni, Monica Correggia, Luciano di Iorio, Giulia Bernardi, Martina Cascone, Rosaria Capuozzo, Michele Intoccia, Roy Price, Costantino Vetriani, Costantino Vetriani, Angelina Cordone, Donato Giovannelli, Donato Giovannelli, Donato Giovannelli, Donato Giovannelli, Donato Giovannelli   +19 more
doaj   +1 more source

Impact of metabolism and growth phase on the hydrogen isotopic composition of microbial fatty acids

Frontiers in Microbiology, 2015
Microorganisms are involved in all elemental cycles and therefore it is important to study their metabolism in the natural environment. A recent technique to investigate this is the hydrogen isotopic composition of microbial fatty acids, i.e ...
Sandra Mariam Heinzelmann, Laura eVillanueva, Danielle eSinke-Schoen, Jaap Smede Sinninghe Damsté, Jaap Smede Sinninghe Damsté, Stefan eSchouten, Stefan eSchouten, Marcel Teunis Jan van der Meer   +7 more
doaj   +1 more source

Impact of Fluid Flow on Bacterial Carbon and Sulfur Cycling, Mineral Precipitation, and Transformation in Hydrothermal Sediments off the Coast of Milos

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Hydrothermal fluid flow not only shapes mineral deposition on the ocean floor but also creates ecological niches by altering temperature and energy availability. In these niches, microbial life thrives and has an additional, often unrecognized impact on mineral formation. In a newly discovered vent field at water depths of 100–200 m off Milos,
J. M. Maak, C. Röttgen, B. Winkelhues, E. Anagnostou, S. I. Bühring, A. Koschinsky, J. Liao, H. Strauss, C. Vogt, W. Bach, E. Schefuß, M. Elvert   +11 more
wiley   +1 more source

Microbially driven organic carbon cycling at the land−sea interface: Advances and an integrated study framework

mLife, Volume 5, Issue 3, Page 282-295, June 2026.
Abstract The land−sea interface is a vital component of global biogeochemical cycles, where microorganisms drive the cycling of carbon, nitrogen, and sulfur. This review synthesizes the research progress from representative land−sea interfaces to elucidate how the microbial community structure and metabolic function influence the mobilization ...
Quanrui Chen, Kai Tang, Zhili He, Meng Li, Jun Yang, Weidong Zhai, Qiang Zheng, Nianzhi Jiao   +7 more
wiley   +1 more source

Influence of Chemoautotrophic Organic Carbon on Sediment and Its Infauna in the Vicinity of the Rainbow Vent Field

Frontiers in Marine Science, 2022
Hydrothermal vents have been recognised as isolated islands of productivity in the deep sea, but very little is known about the transport and export of chemoautotrophic produced organic carbon to vent surrounding habitats.
Reyhaneh Roohi, Ragna Hoogenboom, Ronald Van Bommel, Marcel T. J. Van Der Meer, Furu Mienis, Sabine Gollner   +5 more
doaj   +1 more source