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A hotspot of amoebae diversity : 8 new naked amoebae associated with the planktonic bloom-forming cyanobacterium Microcystis

(2016) ACTA PROTOZOOLOGICA. 55(2). p.61-87
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Abstract
The colonies of Microcystis, one of the most common bloom-forming cyanobacteria worldwide, harbor a diverse community of microorganisms. Among these, naked amoebae feeding on Microcystis cells can strongly influence natural Microcystis population dynamics. In this study, we investigated the species diversity of these amoebae based on 26 Microcystis-associated amoebae (MAA) strains from eutrophied water bodies in Belgium and elsewhere in western Europe. A detailed morphological characterization in combination with 18S rDNA (SSU) phylogenies revealed the presence of no less than 10 species. Nine of these belonged to the known genera Vannella (2 species), Korotnevella (2), Copromyxa (2), Vexillifera (1), Cochliopodium (1) and the recently described Angulamoeba (1). Only two were previously described, the others were new to science. One taxon could not be assigned to a known genus and is here described as Schoutedamoeba gen. n., representing a new variosean lineage. The discovery of so many new species from only one very specific habitat (Microcystis colonies) from a rather restricted geographical area indicates that the diversity of planktonic naked amoebae is much higher than previously appreciated and that only a tiny fraction of the total diversity of naked amoebae is currently known.
Keywords
Naked amoebae, Microcystis, morphology, 18S rDNA, harmful algal blooms, grazing, Europe, GRADIENT GEL-ELECTROPHORESIS, GENUS VEXILLIFERA SCHAEFFER, FREE-LIVING AMEBAS, FRESH-WATER, GENETIC DIVERSITY, N. SP, SPECIES DELIMITATION, LOBOSE AMEBAS, RIBOSOMAL-RNA, EUKARYOTIC MICROORGANISMS

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Citation

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Chicago
Van Wichelen, Jeroen, Sofie D’hondt, Myriam Claeys, Wim Vyverman, Cedric Berney, David Bass, and Pieter Vanormelingen. 2016. “A Hotspot of Amoebae Diversity : 8 New Naked Amoebae Associated with the Planktonic Bloom-forming Cyanobacterium Microcystis.” Acta Protozoologica 55 (2): 61–87.
APA
Van Wichelen, J., D’hondt, S., Claeys, M., Vyverman, W., Berney, C., Bass, D., & Vanormelingen, P. (2016). A hotspot of amoebae diversity : 8 new naked amoebae associated with the planktonic bloom-forming cyanobacterium Microcystis. ACTA PROTOZOOLOGICA, 55(2), 61–87.
Vancouver
1.
Van Wichelen J, D’hondt S, Claeys M, Vyverman W, Berney C, Bass D, et al. A hotspot of amoebae diversity : 8 new naked amoebae associated with the planktonic bloom-forming cyanobacterium Microcystis. ACTA PROTOZOOLOGICA. 2016;55(2):61–87.
MLA
Van Wichelen, Jeroen, Sofie D’hondt, Myriam Claeys, et al. “A Hotspot of Amoebae Diversity : 8 New Naked Amoebae Associated with the Planktonic Bloom-forming Cyanobacterium Microcystis.” ACTA PROTOZOOLOGICA 55.2 (2016): 61–87. Print.
@article{8562210,
  abstract     = {The colonies of Microcystis, one of the most common bloom-forming cyanobacteria worldwide, harbor a diverse community of microorganisms. Among these, naked amoebae feeding on Microcystis cells can strongly influence natural Microcystis population dynamics. In this study, we investigated the species diversity of these amoebae based on 26 Microcystis-associated amoebae (MAA) strains from eutrophied water bodies in Belgium and elsewhere in western Europe. A detailed morphological characterization in combination with 18S rDNA (SSU) phylogenies revealed the presence of no less than 10 species. Nine of these belonged to the known genera Vannella (2 species), Korotnevella (2), Copromyxa (2), Vexillifera (1), Cochliopodium (1) and the recently described Angulamoeba (1). Only two were previously described, the others were new to science. One taxon could not be assigned to a known genus and is here described as Schoutedamoeba gen. n., representing a new variosean lineage. The discovery of so many new species from only one very specific habitat (Microcystis colonies) from a rather restricted geographical area indicates that the diversity of planktonic naked amoebae is much higher than previously appreciated and that only a tiny fraction of the total diversity of naked amoebae is currently known.},
  author       = {Van Wichelen, Jeroen and D'hondt, Sofie and Claeys, Myriam and Vyverman, Wim and Berney, Cedric and Bass, David and Vanormelingen, Pieter},
  issn         = {0065-1583},
  journal      = {ACTA PROTOZOOLOGICA},
  keyword      = {Naked amoebae,Microcystis,morphology,18S rDNA,harmful algal blooms,grazing,Europe,GRADIENT GEL-ELECTROPHORESIS,GENUS VEXILLIFERA SCHAEFFER,FREE-LIVING AMEBAS,FRESH-WATER,GENETIC DIVERSITY,N. SP,SPECIES DELIMITATION,LOBOSE AMEBAS,RIBOSOMAL-RNA,EUKARYOTIC MICROORGANISMS},
  language     = {eng},
  number       = {2},
  pages        = {61--87},
  title        = {A hotspot of amoebae diversity : 8 new naked amoebae associated with the planktonic bloom-forming cyanobacterium Microcystis},
  url          = {http://dx.doi.org/10.4467/16890027AP.16.007.4942},
  volume       = {55},
  year         = {2016},
}

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