Results 71 to 80 of about 363 (122)

Rich and diverse subterranean invertebrate communities inhabiting Melissotrypa Cave in Central Greece

Travaux de l'Institut de Speologie Emile Racovitza, 2019
Located in central Greece, Melissotrypa Cave is a hypogenic cave that contains a sulfidic lake. Biological investigations in this cave led to the discovery of several endemic troglobitic invertebrates, some of which occur in high densities of up to 200 ...
IONUŢ POPA, TRAIAN BRAD, MARKOS VAXEVANOPOULOS, ANDREI GIURGINCA, ŞTEFAN C. BABA, SANDA IEPURE, RODICA PLĂIAŞU, SERBAN M. SARBU   +7 more
doaj  

Primary to post‐depositional microbial controls on the stable and clumped isotope record of shoreline sediments at Fayetteville Green Lake

Geobiology, Volume 22, Issue 4, July/August 2024.
Abstract Lacustrine carbonates are a powerful archive of paleoenvironmental information but are susceptible to post‐depositional alteration. Microbial metabolisms can drive such alteration by changing carbonate saturation in situ, thereby driving dissolution or precipitation.
Hanna C. Leapaldt, Carie M. Frantz, Juliana Olsen‐Valdez, Kathryn E. Snell, Elizabeth J. Trower, Miquela Ingalls   +5 more
wiley   +1 more source

Results of the PCA analysis of the ¹³C-labeling patterns in PLFA for all samples with detectable chemoautotrophy showing the site scores (A) and variable scores (B) for the two PCA axes that explained most of the variance.

, 2014
Results of the PCA analysis of the 13C-labeling patterns in PLFA for all samples with detectable chemoautotrophy showing the site scores (A) and variable scores (B) for the two PCA axes that explained most of the variance.
Henricus T. S. Boschker (555762), Diana Vasquez-Cardenas (555757), Leon Moodley (594388), Tanja W. C. Moerdijk-Poortvliet (594387), Henk Bolhuis (62487)   +4 more
core   +1 more source

Data_Sheet_1_Characterizing Chemoautotrophy and Heterotrophy in Marine Archaea and Bacteria With Single-Cell Multi-isotope NanoSIP.PDF

, 2019
Characterizing and quantifying in situ metabolisms remains both a central goal and challenge for environmental microbiology. Here, we used a single-cell, multi-isotope approach to investigate the anabolic activity of marine microorganisms, with an ...
Jed A. Fuhrman (6792710), Jennifer Pett-Ridge (587607), Xavier Mayali (587606), Anne E. Dekas (8130780), Peter K. Weber (333507), Jessica Wollard (8130783), Alma E. Parada (6920405)   +6 more
core   +1 more source

Unsuspected diversity of Niphargus amphipods in the chemoautotrophic cave ecosystem of Frasassi, central Italy

BMC Evolutionary Biology, 2010
Background The sulfide-rich Frasassi caves in central Italy contain a rare example of a freshwater ecosystem supported entirely by chemoautotrophy. Niphargus ictus, the sole amphipod species previously reported from this locality, was recently shown to ...
Dattagupta Sharmishtha, Wörheide Gert, Flot Jean-François   +2 more
doaj   +1 more source

Integration of multiple metabolic pathways supports high rates of carbon precipitation in living microbialites

Nature Communications
Microbialites are lithifying microbial mats that form multi-layered structures via biological carbon (C) uptake and carbonate precipitation. Here we relate C uptake and precipitation rates to taxonomic diversity and functional capacity of bacterial ...
Rachel E. Sipler, Eric W. Isemonger, Samantha C. Waterworth, Steffen H. Büttner, Thomas G. Bornman, Ross-Lynne A. Gibb, Xavier Siwe Noundou, Siddarthan Venkatachalam, Rosemary A. Dorrington   +8 more
doaj   +1 more source

Minimal Influence of [NiFe] Hydrogenase on Hydrogen Isotope Fractionation in H2-Oxidizing Cupriavidus necator

Frontiers in Microbiology, 2017
Fatty acids produced by H2-metabolizing bacteria are sometimes observed to be more D-depleted than those of photoautotrophic organisms, a trait that has been suggested as diagnostic for chemoautotrophic bacteria.
Brian J. Campbell, Alex L. Sessions, Daniel N. Fox, Blair G. Paul, Qianhui Qin, Matthias Y. Kellermann, David L. Valentine, David L. Valentine   +7 more
doaj   +1 more source

Hot Spring Microbial Community Composition, Morphology, and Carbon Fixation: Implications for Interpreting the Ancient Rock Record

Frontiers in Earth Science, 2017
Microbial communities in hydrothermal systems exist in a range of macroscopic morphologies including stromatolites, mats, and filaments. The architects of these structures are typically autotrophic, serving as primary producers.
Caleb G. Schuler, Jeff R. Havig, Trinity L. Hamilton   +2 more
doaj   +1 more source

Biogeographic Comparison of Lophelia-Associated Bacterial Communities in the Western Atlantic Reveals Conserved Core Microbiome

Frontiers in Microbiology, 2017
Over the last decade, publications on deep-sea corals have tripled. Most attention has been paid to Lophelia pertusa, a globally distributed scleractinian coral that creates critical three-dimensional habitat in the deep ocean.
Christina A. Kellogg, Dawn B. Goldsmith, Michael A. Gray   +2 more
doaj   +1 more source

Abundant and metabolically flexible bacterial lineages underlie a vast potential for rubisco-mediated carbon fixation in the dark ocean

Genome Biology
Background Rubisco is among the most abundant enzymes on Earth and is a critical conduit for inorganic carbon into the biosphere. Despite this, the full extent of rubisco diversity and the biology of organisms that employ it for carbon fixation are still
Alexander L. Jaffe, Rebecca S. R. Salcedo, Anne E. Dekas   +2 more
doaj   +1 more source