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. 2012 Aug 21;2:110. doi: 10.3389/fcimb.2012.00110

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Copyright © 2012 Bertelli and Greub.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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Amoebae may hide several ARMs. (A) Electron microscopy of an inclusion containing a mixed population of microorganisms (white arrow) recovered from a water-humidifier co-cultured in an amoeba of the species Acanthamoeba castellanii. Mi: Mitochondrion, N: Nucleus. Magnification 10,000×. (B) Photonic microscopy of Legionella spp. and Lausannevirus in A. castellanii. Several amoebae contain simultaneously both the giant virus (black arrow) and the rod-shaped bacteria Legionella (grey arrow). Gimenez staining, Magnification 1000x.