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. 2019 Aug 20;10:1835. doi: 10.3389/fmicb.2019.01835

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Copyright © 2019 Torres-Cerna, Morales and Hernandez-Vargas.

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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Extracellular AI-2 activity. Time of the exponential growth of the extracellular AI-2 activity depends on the cell growth rate, this relation is plotted using different cell growth rates, (A) B = 0.63, (B) B = 0.5, (C) B = 1.26. The extracellular AI-2 activity grows exponentially during the cell exponential growth phase, in a late-exponential growth phase the extracellular accumulation is depleted due to the action of the LsrACDB proteins.