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Increased cellular brevetoxins in the red tide dinoflagellate Karenia brevis under CO2 limitation of growth rate: Evolutionary implications and potential effects on bloom toxicity
Increased cellular brevetoxins Karenia brevis
2014/4/2
Karenia brevis blooms impair human health, marine ecosystems, and coastal economies in the Gulf of Mexico
via their production of carbon-based neurotoxins (brevetoxins), which contain no nitrogen (N)...
Comparative effects of urea, ammonium, and nitrate on phytoplankton abundance, community composition, and toxicity in hypereutrophic freshwaters
Comparative effects of urea ammonium nitrate
2014/4/4
Dissolved nitrogen (N) as urea ([NH2
]2CO), nitrate (NO{
3
), and ammonium (NHz
4
) was added to naturally
phosphorus (P)-rich lake water (up to 175 mg P L21
) to test the hypotheses that pollu...
Toxicity of violacein-producing bacteria fed to bacterivorous freshwater plankton
bacterivorous freshwater plankton violacein-producing bacteria
2014/4/18
Chemical defenses have been hypothesized to be widespread among aquatic bacteria, but few studies have
assessed the susceptibility of pelagic consumers to bacterial secondary metabolites. In this stu...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity urea-grown diatom
2014/4/21
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity a urea-grown diatom
2014/4/18
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...
Effects of cyanobacterial toxicity and morphology on the population growth of freshwater zooplankton: Meta-analyses of laboratory experiments
cyanobacterial toxicity morphology on the population growth freshwater zooplankton laboratory experiments
2014/5/4
We synthesized data from 66 published laboratory studies, representing 597 experimental comparisons, examining the effects of cyanobacterial toxicity and morphology on the population growth rate and s...
Domoic acid: The synergy of iron, copper, and the toxicity of diatoms
The synergy of iron copper
2014/5/13
Diatom blooms generated by the alleviation of iron limitation in high nitrate–low chlorophyll (HNLC) regions
of the oceans often are composed of pennate diatoms of the genus Pseudo-nitzschia, many of...
Interactive regulation of dissolved copper toxicity by an estuarine microbial community
Interactive regulation copper toxicity estuarine microbial community
2014/5/19
Cultured marine microorganisms under copper stress produce extracellular compounds having a high affinity for copper (copper-complexing ligands). These ligands are similar in binding strength to those...
Copper toxicity and cyanobacteria ecology in the Sargasso Sea
Copper toxicity cyanobacteria ecology Sargasso Sea
2014/5/27
The closely related cyanobacteria Synechococcus and Prochlorococcus have different distributions in stratified water columns in the northern Sargasso Sea. The abundance of Synechococcus is relatively ...
Toxicity in Peridinium aciculiferum—an adaptive strategy to outcompete other winter phytoplankton?
Peridinium aciculiferum outcompete other winter phytoplankton
2014/5/30
Freshwater dinoflagellates may form dense blooms during winter in ice-covered lakes. Unlike their marine counterparts, freshwater dinoflagellates are rarely considered to be potential toxi...