Ecologically relevant choanoflagellates collected from hypoxic water masses of the Baltic Sea have untypical mitochondrial cristae
@article{Wylezich2012EcologicallyRC, title={Ecologically relevant choanoflagellates collected from hypoxic water masses of the Baltic Sea have untypical mitochondrial cristae}, author={Claudia Wylezich and Sergey A. Karpov and Alexander P. Mylnikov and Ruth Anderson and Klaus Jürgens}, journal={BMC Microbiology}, year={2012}, volume={12}, pages={271 - 271} }
BackgroundProtist communities inhabiting oxygen depleted waters have so far been characterized through both microscopical observations and sequence based techniques. However, the lack of cultures for abundant taxa severely hampers our knowledge on the morphology, ecology and energy metabolism of hypoxic protists. Cultivation of such protists has been unsuccessful in most cases, and has never yet succeeded for choanoflagellates, even though these small bacterivorous flagellates are known to be…
27 Citations
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References
SHOWING 1-10 OF 80 REFERENCES
Unveiling Trophic Functions of Uncultured Protist Taxa by Incubation Experiments in the Brackish Baltic Sea
- Environmental Science, BiologyPloS one
- 2012
The results indicate that the heterotrophic flagellate community in the southwestern Baltic Sea is dominated by species of marine origin, and shed some light into the trophic role of diverse uncultured protists especially within functionally heterogeneous groups.
Microbial eukaryotes in the hypersaline anoxic L'Atalante deep-sea basin.
- Environmental Science, BiologyEnvironmental microbiology
- 2009
It is hypothesized that extreme environments may exert a high selection pressure possibly resulting in the evolution of an exceptional and distinctive assemblage of protists in the deep hypersaline anoxic basins in the Mediterranean Sea.
Taming the smallest predators of the oceans
- BiologyThe ISME Journal
- 2013
It is shown how ecologically significant bacterivorous protists have been brought into culture by mimicking in situ conditions by inoculating into seawater amended with natural bacterial assemblage at nearly in situ abundances.
Protist diversity in suboxic and sulfidic waters of the Black Sea.
- Environmental Science, BiologyEnvironmental microbiology
- 2011
Higher species diversity in the sulfidic zone and about twice as many novel sequence types of ciliates and stramenopiles compared with the suboxic layer emphasizes the importance of anoxic, sulfidIC waters as habitat for high protist diversity although the function of these organisms is yet unknown.
Emerging diversity within chrysophytes, choanoflagellates and bicosoecids based on molecular surveys.
- BiologyProtist
- 2011
Ultrastructure and molecular phylogeny of Calkinsia aureus: cellular identity of a novel clade of deep-sea euglenozoans with epibiotic bacteria
- BiologyBMC Microbiology
- 2008
The authors' ultrastructural description of C. aureus possesses all of the synapomorphies for the Euglenozoa, but lacks traits that are specific to any of the three previously recognized euglenozoan subgroups.
Distribution of abundant prokaryotic organisms in the water column of the central Baltic Sea with an oxic-anoxic interface
- Environmental Science, Biology
- 2007
Anoxic marine deeps are characterized by their chemically stratified water columns. This has implications for the vertical distribution of microbial assemblages, but knowledge of this distribution is…
Relevance of a crenarchaeotal subcluster related to Candidatus Nitrosopumilus maritimus to ammonia oxidation in the suboxic zone of the central Baltic Sea
- Environmental ScienceThe ISME Journal
- 2010
This is the first study to show the dominance of only one crenarchaeotal nitrifying key cluster in a natural habitat, inside and outside the nitrification zone of a pelagic redoxcline.
Microeukaryote Community Patterns along an O2/H2S Gradient in a Supersulfidic Anoxic Fjord (Framvaren, Norway)
- Biology, Environmental ScienceApplied and Environmental Microbiology
- 2006
A cultivation-independent 18S rRNA survey in the superanoxic Framvaren Fjord in Norway revealed the fine-scale architecture of anoxic protistan communities, which may exhibit adaptation to different environmental conditions along the steep O2/H2S gradient.
The ecology of Paraphysomonas imperforata based on studies employing oligonucleotide probe identification in coastal water samples and enrichment cultures
- Environmental Science
- 1999
The results support the notion that enrichment cultivation of heterotrophic flagellates, and perhaps incubations in general, can select for species such as P. imperforata that may not be representative of nanoplanktonic protists that numerically dominate natural assemblages.