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Less life:Limited phosphorus recycling suppressed early Earth’s biosphere
Less life Limited phosphorus recycling early Earth’s biosphere
2017/12/18
As Earth’s oxygen levels rose to near-modern levels over the last 800 million years, phosphorus levels also increased, according to modeling led by the UW’s Michael Kipp and others. Accordingly, Kipp ...
Ammonium uptake and dinitrogen fixation by the unicellular nanocyanobacterium Crocosphaera watsonii in nitrogen-limited continuous cultures
nanocyanobacterium Crocosphaera Ammonium uptake
2014/4/2
Ammonium uptake and nitrogen (N) fixation of the unicellular nanocyanobacterium Crocosphaera watsonii
isolated from the western subtropical North Pacific were determined in N-limited continuous cultu...
Photochemically produced bioavailable nitrogen from biologically recalcitrant dissolved organic matter stimulates production of a nitrogen-limited microbial food web in the Baltic Sea
Photochemically produced bioavailable nitrogen biologically recalcitrant dissolved organic matter stimulates production nitrogen-limited microbial food web in the Baltic Sea
2014/4/22
Experiments were designed to assess whether the photochemical production of bioavailable nitrogen (N) from biologically recalcitrant dissolved organic nitrogen (DON) stimulates growth of N-limited pla...
Mass-transfer-limited nitrogen and phosphorus uptake by stream periphyton: A conceptual model and experimental evidence
Mass-transfer-limited nitrogen phosphorus uptake stream periphyton conceptual model experimental evidence
2014/5/19
We conducted flow-tank experiments to examine nitrate (NO3) and dissolved reactive phosphorus (DRP) uptake by stream periphyton over a wide range of near-bed velocities and turbulence levels. Our aims...
Life history bottlenecks in Diaptomus clavipes induced by phosphorus-limited algae
Life history bottlenecks Diaptomus clavipes induced phosphorus-limited algae
2014/5/27
Considerable information has accumulated on food quality effects on certain cladocerans; meanwhile, other zooplankton have received comparatively little nutritional study. In particular, little is sti...
Increased sensitivity to ultraviolet radiation in nitrogen-limited dinoflagellates: Photoprotection and repair
Increased sensitivity ultraviolet radiation nitrogen-limited dinoflagellates Photoprotection and repair
2014/5/26
Nitrogen (N) limitation significantly increased the sensitivity of photosynthesis to inhibition by ultraviolet radiation (UV) in two estuarine dinoflagellates, Akashiwo sanguinea (= Gymnodinium sangui...
Response of marine bacterial community composition to iron additions in three iron-limited regimes
marine bacterial community iron additions three iron-limited regimes
2014/6/9
In high-nutrient low-chlorophyll (HNLC) regimes, iron additions consistently result in primary productivity increases, and the phytoplankton community shifts from small species toward large diatoms. H...
Light absorption and size scaling of light-limited metabolism in marine diatoms
Light absorption size scaling light-limited metabolism marine diatoms
2014/5/30
Previous studies have found that the size-scaling exponent of metabolic rates in unicellular algae often deviates from the exponent of -1/4 usually found for heterotrophs. This study confirms a signif...