Results 51 to 60 of about 363 (122)

A remarkable finding that suggests the existence of a new groundwater biome based on chemoautotrophic resources, named “Ophel” by F.D. Por

Travaux de l'Institut de Speologie Emile Racovitza, 2009
An important work of subterranean biology, signed by FRANCIS DOV POR, Ophel: a groundwater biome based on chemoautotrophic resources. The global significance of the Ayyalon cave finds, Israel is presented and discussed in the present paper.
ŞTEFAN NEGREA
doaj  

Cross‐Feeding of Carbon and Nitrogen Between Aquificales and Thermus in Hot Springs

Environmental Microbiology, Volume 28, Issue 1, January 2026.
Pampinifervens and Thermus populations are co‐distributed in hot springs in Yellowstone and Iceland. Genome reconstruction suggests Pampinifervens Flu05 cross feeds Thermus organic carbon and nitrogen, a phenomenon that was verified via co‐culture studies.
Lisa M. Keller, Daniel R. Colman, Andri Stefánsson, Eric S. Boyd   +3 more
wiley   +1 more source

It Takes a Village: Discovering and Isolating the Nitrifiers

Frontiers in Microbiology, 2020
It has been almost 150 years since Jean-Jacques Schloesing and Achille Müntz discovered that the process of nitrification, the oxidation of ammonium to nitrate, is a biological process carried out by microorganisms.
Christopher J. Sedlacek
doaj   +1 more source

Aotearoa New Zealand’s marine carbon cycle in a changing climate – Current understanding and future directions

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 913-956, December 2025.
ABSTRACT The marine system plays a critical role in the global climate cycle, as a major control of atmospheric carbon dioxide (CO2). Marine primary production (photosynthesis) and remineralisation of organic carbon (respiration, degradation) determine the amount of CO2 sequestered in marine sediments and deep‐water environments on century to ...
Scott D. Nodder, Cliff S. Law, Erik Behrens, Sarah J. Bury, Antonia Cristi, Charine Collins, Kim I. Currie, Moira Décima, Alain De Verneil, Pablo C. Escobar‐Flores, Denise Fernandez, Mark P. Gall, Andrés Gutiérrez‐Rodríguez, Svenja Halfter, Helen S. MacDonald, Andrew Marriner, Matthew H. Pinkerton, Graham J. Rickard, Karl A. Safi, Sarah Seabrook, Craig L. Stevens, Philip J. H. Sutton, John R. Zeldis   +22 more
wiley   +1 more source

Wide range of metabolic adaptations to the acquisition of the Calvin cycle revealed by comparison of microbial genomes.

PLoS Computational Biology, 2021
Knowledge of the genetic basis for autotrophic metabolism is valuable since it relates to both the emergence of life and to the metabolic engineering challenge of incorporating CO2 as a potential substrate for biorefining.
Johannes Asplund-Samuelsson, Elton P Hudson   +1 more
doaj   +1 more source

Bacteria and Archaea Regulate Particulate Organic Matter Export in Suspended and Sinking Marine Particle Fractions

mSphere, 2023
The biological carbon pump (BCP) in the Southern Ocean is driven by phytoplankton productivity and is a significant organic matter sink. However, the role of particle-attached (PA) and free-living (FL) prokaryotes (bacteria and archaea) and their ...
Choaro D. Dithugoe, Oliver K. I. Bezuidt, Emma L. Cavan, William P. Froneman, Sandy J. Thomalla, Thulani P. Makhalanyane   +5 more
doaj   +1 more source

Marine Cold Seep ANME‐2/SRB Consortia Produce Their Lipid Biomass From Inorganic Carbon

Environmental Microbiology, Volume 27, Issue 12, December 2025.
Lipid‐stable isotope probing (SIP) experiments in Astoria Canyon sediments revealed that both ANME‐2 and SRB primarily assimilate dissolved inorganic carbon (DIC or HCO3‐), not methane, into biomass. SRB‐specific lipids showed eightfold higher DI13C‐assimilation than ANME lipids, suggesting SRB directly assimilate DIC, while ANME assimilate an ...
Lennart Stock, Gunter Wegener, Yueqing Wang, Yannick Zander, Marcus Elvert   +4 more
wiley   +1 more source

Chemoautotrophy and anoxygenic photosynthesis within the water column of a large meromictic tropical lake (Lake Kivu, East Africa) [PDF]

Limnology and Oceanography, 2016
AbstractWe quantified chemoautotrophic and anoxygenic photosynthetic microbial production in the water column of Lake Kivu, a permanently stratified tropical lake situated amidst volcanic activity, and aimed to identify the microorganisms involved in these processes through the analysis of their phospholipid fatty acid (PLFA) content and stable isotope
Morana, Cédric, Roland, Fleur, Crowe, Sean A., Llirós, Marc, Borges, Alberto, Darchambeau, François, Bouillon, Steven   +6 more
openaire   +2 more sources

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

FEBS Open Bio, Volume 15, Issue 7, Page 1028-1040, July 2025.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés   +3 more
wiley   +1 more source

Contrasting Dynamics and Biotic Association Networks in Estuarine Microbenthic Communities Along an Environmental Disturbance Gradient

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Environmental DNA samples were collected across a time series from six estuaries from the Basque coast experiencing different degrees of disturbance. Prokaryotic communities and their association networks differed depending on the disturbance level, being more stable in less impacted estuaries.
Leire Garate, Anthony A. Chariton, Ion L. Abad‐Recio, Andrew Bissett, Anders Lanzén   +4 more
wiley   +1 more source