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. 2014 May 30;5:259. doi: 10.3389/fmicb.2014.00259

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Copyright © 2014 Barco and Edwards.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Left: large batch culture of M. ferrooxydans, strain PV-1 after 1 day of growth, compared to a control. Top-Right: formation of biofilm along the wall of culture bottle after 1 day of growth. Bottom-Right: the biofilm dislodges and forms fluffly flocculent material. (B) s.e.m. image of the mats of PV-1 (bar = 10 μm). (C) Confocal fluorescent and bright field composite image of the mats of PV-1 (bar = 25 μm). Inset: composite image of isolated PV-1 cell and stalk (bar = 4 μm).