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. 2018 May 22;9:655. doi: 10.3389/fpls.2018.00655

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Copyright © 2018 Prerostova, Dobrev, Gaudinova, Knirsch, Körber, Pieruschka, Fiorani, Brzobohatý, černý, Spichal, Humplik, Vanek, Schurr and Vankova.

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 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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Effects of drought and modulation of cytokinin metabolism on the levels of active hormones (active CKs, IAA, ABA, JA, SA and ACC) in Arabidopsis plants. The hormone levels in individual variants determined before stress (BS), during the drought stress (D) and recovery period (R) and of their respective controls (DC, RC) were analyzed by principal component analysis (PCA). PC1 illustrates a link among the stress hormones ABA, JA, ACC and cZ as well as dihydrozeatin. Separation along PC3 clusters stressed and non-stressed plants according to the content of stress hormones ABA, JA, SA and ACC, showing distinct behavior of SAG:IPT and DEX:IPT.