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Methionine synthase interreplacement in diatom cultures and communities: Implications for the persistence of B12 use by eukaryotic phytoplankton
Methionine synthase interreplacement diatom cultures communities: Implications persistence of B12 eukaryotic phytoplankton
2014/4/2
Three proteins related to vitamin B12 metabolism in diatoms were quantified via selected reaction monitoring mass spectrometry: B12-dependent and B12-independent methionine synthase (MetH, MetE) and a...
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...
Vitamin B12excretion by cultures of the marine cyanobacteriaCrocosphaera andSynechococcus
Vitamin B12 excretion cultures the marine cyanobacteria Crocos phaera Synechococcus
2014/4/16
Axenic cultures of the N2-fixing marine cyanobacteriumCrocosphaera watsoniiexhibit very high B12excretion rates (up to 40 times higher per cell), compared to the smaller non–N2-fixing strain of marine...
The effect of growth rate, phosphorus concentration, and temperature on N2 fixation, carbon fixation, and nitrogen release in continuous cultures of Trichodesmium IMS101
growth rate phosphorus concentration temperature on N2 fixation carbon fixation nitrogen release continuous cultures Trichodesmium IMS101
2014/5/9
With the use of continuous culture systems, rates of dinitrogen (N2) and carbon (C) fixation and nitrogen (N)- and C-based doubling times were assessed in Trichodesmium IMS101 growing exponentially at...
Coupled nitrogen and oxygen isotope fractionation of nitrate during assimilation by cultures of marine phytoplankton
Coupled nitrogen oxygen isotope fractionation
2014/5/19
We report the first measurements of coupled nitrogen (N) and oxygen (O) isotopic variations of nitrate (NO )2
3
during its assimilation by laboratory cultures of marine phytoplankton and deriv...
Influence of CO2, nitrate, phosphate, and silicate limitation on intracellular dimethylsulfoniopropionate in batch cultures of the coastal diatom Thalassiosira pseudonana
CO2 nitrate phosphate silicate limitation intracellular dimethylsulfoniopropionate diatom Thalassiosira pseudonana
2014/5/22
We measured intracellular dimethyl sulfoniopropionate (DMSP) concentrations in nutrient-limited batch cultures of the coastal diatom Thalassiosira pseudonana. Under N, P, CO2, and Si growth limitation...
Iron requirements for dinitrogen- and ammonium-supported growth in cultures of Trichodesmium (IMS 101): Comparison with nitrogen fixation rates and iron:carbon ratios of field populations
Iron requirements nitrogen- and ammonium-supported growth cultures of Trichodesmium nitrogen fixation rates and iron field populations
2014/5/21
We quantified the relationships among the specific growth rate, intracellular iron content, and steady state iron uptake rate for cultures of the marine diazotrophic cyanobacterium Trichodesmium (IMS ...
Urease activity in cultures and field populations of the toxic dinoflagellate Alexandrium
Urease activity in cultures field populations toxic dinoflagellate Alexandrium
2014/5/20
Nitrogen availability is an important factor controlling phytoplankton abundance and species composition in marine waters. In addition to inorganic nitrogen, some phytoplankton species can use dissolv...