Results 61 to 70 of about 1,521 (177)

Nitrosomonas europaea MazF Specifically Recognises the UGG Motif and Promotes Selective RNA Degradation

open access: yesFrontiers in Microbiology, 2018
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

Decadal Shifts Towards Higher Riverine Silicon Relative to Nitrogen and Phosphorus Across High Latitudes

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 7, July 2026.
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.

open access: yesPLoS ONE, 2013
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

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
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

open access: yesJournal of Ecology, Volume 114, Issue 7, July 2026.
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]

open access: yesCritical Reviews in Plant Sciences, 2003
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

open access: yesBiotechnology for Biofuels, 2019
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

open access: yesJournal of Applied Bacteriology, 1968
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

open access: yesFrontiers in Earth Science, 2017
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

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