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. 2019 Oct 10;10:2304. doi: 10.3389/fmicb.2019.02304

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Copyright © 2019 Klimentova, Pavkova, Horcickova, Bavlovic, Kofronova, Benada and Stulik.

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) and the copyright owner(s) 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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Transmission electron microscopy of vesicles isolated from different cultivation conditions. (A) Oxidative stress caused by 10 mM H₂O₂; (B,C) 42°C; (D) 25°C; (E) pH 5.3; and (F) vesicles from agar plate grown bacteria. Arrows point to the extremely long nanotubes characteristic for high temperature cultivation. Bars A,B and D–F: 0.5 μm; and C: 2 μm.