ABSTRACT: The expression level of the 31 genes (ERF-1 (AT4G17500), ERF2 (AT5G47220), ERF5 (AT5G47230), ERF6 (AT4G17490), ERF11 (AT1G28370), ERF8 (AT1G53170), ERF9 (AT5G44210), ERF59 (AT1G06160), ERF98 (AT3G23230), MYB51 (AT1G18570), STZ (AT1G27730), WRKY28 (AT4G18170), WRKY33 (AT2G38470), WRKY15 (AT2G23320), ZAT6 (AT5G04340), WRKY48 (AT5G49520), RAP2.6L (AT5G13330), K11J9.4 (AT5G61590), bHLH (AT2G43140), GATA3 (AT4G34680), GA2OX6 (AT1G02400), GA3OX1 (AT1G15550), GA2OX4 (AT1G47990), GA20OX1 (AT4G25420), EXLB3 (AT2G18660), MPK3 (AT3G45640), RAP2.2 (AT3G14230)) was measured upon mild osmotic stress (25mM mannitol) in the third leaf of wild-type plants during the proliferating (9 days after stratification (DAS)), expanding (15 DAS) and mature (22 DAS) developmental stage. The expanding third leaf (15 DA
