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. 2017 May 9;8:840. doi: 10.3389/fmicb.2017.00840

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Copyright © 2017 Sun, Guo, Tang, Wen, Li, Zeng and Wang.

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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MqsA negatively regulates algU, PP_3288 and nadB. (A) Fold changes of expression of three genes in ΔmqsA vs. KT2440, and ΔmqsA/pHGE-mqsA vs. ΔmqsA/pHGE were quantified by qRT-PCR. (B) Mid-log phase cells of the reporter strains harboring pMQ70, pMQ70-mqsRA, and pMQ70-mqsA (with 10 mM L-arabinose) were tested for β-galactosidase activity, respectively. Three independent cultures for each strain were used and the data are shown as means ± standard deviations. Asterisks represent a statistically significant difference. (P < 0.01 was shown in ^∗ and P < 0.001 was shown in ^∗∗; n = 3).