Distinct methane-dependent biogeochemical states in Arctic seafloor gas hydrate mounds
Archaea in marine sediment control the transfer of methane to the ocean, but microbial dynamics in these environments are poorly understood. Here the authors investigate marine sediments in the high Arctic, showing how methane influx quickly increases ...
Scott A. Klasek +7 more
doaj +1 more source
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are bacterial membrane lipids that are widely used in terrestrial paleoclimatic reconstructions. Recent studies have reported that brGDGTs can also be produced by marine bacteria.
Zhiyu Zeng +13 more
doaj +1 more source
Archaea are differentiated from the other two domains of life by their biomolecular characteristics. One such characteristic is the unique structure and composition of their lipids.
Kai P. Law +9 more
doaj +1 more source
Changes in microbial (Bacteria and Archaea) plankton community structure after artificial dispersal in grazer-free microcosms [PDF]
Microbes are considered to have a global distribution due to their high dispersal capabilities. However, our knowledge of the way geographically distant microbial communities assemble after dispersal in a new environment is limited.
Courties, Claude +5 more
core +2 more sources
Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley +1 more source
Carbon recycling efficiency and phosphate turnover by marine nitrifying archaea [PDF]
Efficient thaumarchaeal chemoautotrophs recycle ~5% of remineralized C and P and release dissolved organics to the ocean.
Travis B. Meador +5 more
openaire +3 more sources
Cold seeps on the continental margins are characterized by intense microbial activities that consume a large portion of methane by anaerobic methanotrophic archaea (ANME) through anaerobic oxidation of methane (AOM).
Tingting Zhang +21 more
doaj +1 more source
Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]
Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
core +2 more sources
Archaeal diversity in deep-sea sediments estimated by means of different Terminal-Restriction Fragment Length Polymorphisms (T-RFLP) protocols [PDF]
Despite the increasing recognition of the quantitative importance of Archaea in all marine systems, the protocols for a rapid estimate of Archaeal diversity patterns in deep-sea sediments have been only poorly tested yet.
Danovaro, Roberto +3 more
core +1 more source
Role for urea in nitrification by polar marine Archaea [PDF]
Despite the high abundance of Archaea in the global ocean, their metabolism and biogeochemical roles remain largely unresolved. We investigated the population dynamics and metabolic activity ofThaumarchaeotain polar environments, where these microorganisms are particularly abundant and exhibit seasonal growth.Thaumarchaeotawere more abundant in deep ...
Alonso-Sáez, Laura +14 more
openaire +4 more sources

