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Habitat selection of aquatic testate amoebae communities on Qeqertarsuaq (Disko Island), West Greenland Plantentuin Meise / Agentschap Plantentuin Meise
The testate amoebae communities living in different substrate types of 31 aquatic sites on Qeqertarsuaq (West-Greenland) were studied. A total of 74 taxa, belonging to 21 genera was observed. While most taxa belonged to the genera Difflugia, Euglypha and Centropyxis, most counted tests were identified as Trinema lineare. The substrate type showed the largest influence on testate amoebae communities, regardless of the habitat type. Centropyxis ...
Amoebae as potential environmental hosts for Mycobacterium ulcerans and other mycobacteria, but doubtful actors in Buruli ulcer epidemiology Instituut voor Tropische Geneeskunde
BACKGROUND: The reservoir and mode of transmission of Mycobacterium ulcerans, the causative agent of Buruli ulcer, remain unknown. Ecological, genetic and epidemiological information nonetheless suggests that M. ulcerans may reside in aquatic protozoa. METHODOLOGY/PRINCIPAL FINDINGS: We experimentally infected Acanthamoeba polyphaga with M. ulcerans and found that the bacilli were phagocytised, not digested and remained viable for the duration ...
Knowledge of morphology is still required when identifying new amoeba isolates by molecular techniques Instituut voor Tropische Geneeskunde
We have isolated several free-living amoeba strains from the environment in Ghana, which have internal transcribed spacers, including the 5.8S rDNA, sequences similar to sequences attributed to Vahlkampfiidae (Heterolobosea) in databases. However, morphological examination shows that the isolates belong to the Hartmannellidae (Amoebozoa). We provide evidence that the sequences in the databases are wrongly classified as belonging to a genus or ...
The diversity and ecological impact of amoebae grazing on the bloom-forming cyanobacterium Microcystis Universiteit Gent
Cultural eutrophication has caused the deterioration of many shallow standing waters all over the world. Especially cyanobacteria, notorious for their toxins, proliferate at elevated nutrient concentrations thus hampering the amenities provided by the affected waters. To halt and reduce cyanobacterial bloom formation, a good ecological knowledge on the natural dynamics of these blooms is indispensable. Top-down effects (e.g. zooplankton grazing) ...