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@ARTICLE{Geisen:276262,
      author       = {Geisen, Stefan and Rosengarten, Jamila and Koller, Robert
                      and Mulder, Christian and Urich, Tim and Bonkowski, Michael},
      title        = {{P}ack hunting by a common soil amoeba on nematodes},
      journal      = {Environmental microbiology},
      volume       = {17},
      number       = {11},
      issn         = {1462-2912},
      address      = {Oxford [u.a.]},
      publisher    = {Blackwell},
      reportid     = {FZJ-2015-06725},
      pages        = {4538–4546},
      year         = {2015},
      abstract     = {Soils host the most complex communities on Earth, including
                      the most diverse and abundant eukaryotes, i.e. heterotrophic
                      protists. Protists are generally considered as bacterivores,
                      but evidence for negative interactions with nematodes both
                      from laboratory and field studies exist. However, direct
                      impacts of protists on nematodes remain unknown. We isolated
                      the soil-borne testate amoeba Cryptodifflugia operculata and
                      found a highly specialized and effective pack-hunting
                      strategy to prey on bacterivorous nematodes. Enhanced
                      reproduction in presence of prey nematodes suggests a
                      beneficial predatory life history of these omnivorous soil
                      amoebae. Cryptodifflugia operculata appears to selectively
                      impact the nematode community composition as reductions of
                      nematode numbers were species specific. Furthermore, we
                      investigated 12 soil metatranscriptomes from five distinct
                      locations throughout Europe for 18S ribosomal RNA
                      transcripts of C. operculata. The presence of
                      C. operculata transcripts in all samples, representing up
                      to $4\%$ of the active protist community, indicates a
                      potential ecological importance of nematophagy performed by
                      C. operculata in soil food webs. The unique pack-hunting
                      strategy on nematodes that was previously unknown from
                      protists, together with molecular evidence that these pack
                      hunters are likely to be abundant and widespread in soils,
                      imply a considerable importance of the hitherto neglected
                      trophic link ‘nematophagous protists’ in soil food
                      webs.},
      cin          = {IBG-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000366139500030},
      pubmed       = {pmid:26079718},
      doi          = {10.1111/1462-2920.12949},
      url          = {https://juser.fz-juelich.de/record/276262},
}