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. 2016 Feb 6;8(2):42. doi: 10.3390/toxins8020042

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Expression changes of pleiotropic drug resistance (PDR) genes. (a) A simplified pleiotropic drug resistance regulation system, which was compiled by referring to a previous report [21]. Genes in boxes were examined in this study. Three capital letters with Italics indicates a gene; two small letters following a capital letter indicates a coding protein; (b) Concentration-dependent expression changes of PDR genes obtained by semi-quantitative polymerase chain reaction (PCR). ACT1 expression data in each sample were used for normalization. Approximate trend lines are shown. Bars = standard error; n = 3. p-value of ANOVA < 0.01, except for SNQ2.