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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 content of all determined hormone-related metabolites in Arabidopsis plants. Metabolite profiling recorded 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 clustered variants according to CKs content. The PCA confirmed the importance of ABA (and its metabolites) and of JA/JA-Ile in drought response of all experimental variants (PC3). Clustering of DEX:IPT plants after re-watering (R) and of drought-stressed control (DC) along the PC1 indicates positive effect of CKs on the recovery.