Growth suppression was also associated with down-regulation of auxin indole-3-acetic acid (IAA; Figure 4 ) and simultaneous elevation of IAA catabolites 2-oxindole-3-acetic acid (OxIAA; Table S5 ) and its glucosyl ester (not shown), which due to biological variation did not reach statistical significance ( p < 0.05).
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Cytokinins: Their Impact on Molecular and Growth Responses to Drought Stress and Recovery in <i>Arabidopsis</i>.
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Up-regulation of CK levels at the stress onset (repeated twice during the stress progression) by induction of ipt expression or by application of stable aromatic CK meta -topolin, had highly significant positive effect on plant recovery after rehydration, diminishing the stress effects.