Results 61 to 70 of about 1,521 (177)
Toxin-antitoxin (TA) systems are implicated in prokaryotic stress adaptation. Previously, bioinformatics analysis predicted that such systems are abundant in some slowly growing chemolithotrophs; e.g., Nitrosomonas europaea.
Tatsuki Miyamoto +10 more
doaj +1 more source
Abstract High‐latitude systems are warming faster than the global average, altering the rates of silicon (Si) mobilization from terrestrial to aquatic systems. Dissolved Si (DSi) concentration and its ratio with other nutrients exert strong controls on algae blooms in fresh and marine receiving waters, especially in high‐latitude regions where diatoms ...
Joanna C. Carey +12 more
wiley +1 more source
Hydrologic variability affects invertebrate grazing on phototrophic biofilms in stream microcosms.
The temporal variability of streamflow is known to be a key feature structuring and controlling fluvial ecological communities and ecosystem processes. Although alterations of streamflow regime due to habitat fragmentation or other anthropogenic factors ...
Serena Ceola +9 more
doaj +1 more source
Archaeal Tetraether Lipids as Tracers for Past Marine Environmental Change
Abstract Archaea are single‐celled microorganisms that are abundant in marine environments and play a key role in the carbon and nitrogen cycles. Archaea can biosynthesize a wide variety of isoprenoid membrane lipids, including isoprenoid glycerol dibiphytanyl glycerol tetraethers (isoGDGTs).
Felix J. Elling +39 more
wiley +1 more source
Cation responses to global changes alter ecological processes in ombrotrophic systems
Ombrotrophic bogs, which store large amounts of carbon as peat, receive all their mineral nutrition through deposition, making them particularly sensitive to cation‐displacing global changes. Here, we review the limited yet compelling evidence that cation availability is a key determinant of ecological processes across scales of ecological organisation
Joshua S. Lynn +5 more
wiley +1 more source
Allelopathy of Aquatic Autotrophs [PDF]
Allelopathy in aquatic environments may provide a competitive advantage to angiosperms, algae, or cyanobacteria in their interaction with other primary producers. Allelopathy can influence the competition between different photoautotrophs for resources and change the succession of species, for example, in phytoplankton communities.
openaire +2 more sources
Efficient biochemical production of acetoin from carbon dioxide using Cupriavidus necator H16
Background Cupriavidus necator is the best-studied knallgas (also termed hydrogen oxidizing) bacterium and provides a model organism for studying the production of the storage polymer polyhydroxybutyrate (PHB).
Carina Windhorst, Johannes Gescher
doaj +1 more source
Isolation of Ammonia‐oxidizing Autotrophic Bacteria
SUMMARY Procedures are described for isolating ammonia‐oxidizing autotrophic bacteria in pure culture, using solid media made from purified agar and appropriate micromanipulations.
Soriano, S., Walker, N.
openaire +2 more sources
The Stoichiometry of Nutrient Release by Terrestrial Herbivores and Its Ecosystem Consequences
It is widely recognized that the release of nutrients by herbivores via their waste products strongly impacts nutrient availability for autotrophs. The ratios of nitrogen (N) and phosphorus (P) recycled through herbivore release (i.e., waste N:P) are ...
Judith Sitters +7 more
doaj +1 more source

