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. 2022 May 8;23(9):5241. doi: 10.3390/ijms23095241

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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The phenotypes of PalERF2 transgenic poplars under drought stress. (A) The phenotypes of transgenic and WT poplars after 5 days of drought treatment. (B) The MDA contents were measured after drought treatment. (C) The total chlorophyll contents were measured after drought treatment. (B,C) values represents means ± SD (n = 5). Significance of differences was analyzed by Duncan’s test (p < 0.05, n = 5). Different letters indicate statistically significant difference. (D) The relative expression of drought-associated genes in PalERF2-OE, PalERF2-RNAi, and WT poplars. Error bars indicate SD values from three biological replicates.