TY - JOUR N2 - Dehydroabietic acid R=COOH (DHA), a naturally occuring diterpene resin acid, is an activator of systemic acquired resistance (SAR) under biotic stress. However, there had been no report on its functioning under salinity. In the present study, we determined the effects of DHA on salinity and its possible role as a signal transmitter in soybean (Glycine max L.) leaves under salinity (200 mM NaCl). Furthermore, physiological parameters, chlorophyll, proline, malondialdehyde (MDA), hydrogen peroxide (H2O2) content, superoxide (O2‾) and hydroxyl radical (•OH) scavenge capacity, as well as antioxidant enzymes (SOD, POX, APX and GST) and GmWRKY-71 gene expressions were investigated in the treated plants at 6 h, 12 h and 24 h. The obtained results showed that pretreatment of DHA caused (1) a reduction in salt-induced damage, (2) improvement in biomass yield, water status, chlorophyll and leaf area, (3) regulation of the proline level and relative electrolyte leakage, (4) increase in reactive oxygen species (ROS) scavenging capacity, (5) induction of SOD and APX enzyme activity at all the investigated periods, while POX only at 6 h, and thus alleviation of the oxidative damage. In addition, the changes in GmWRKY-71 gene expressions were remarkable in soybean under salinity. To sum up, these results showed that DHA can be used as a ROS inhibitor or a signal molecule in increasing salt tolerance in soybean under salinity. L1 - http://czasopisma.pan.pl/Content/115000/PDF/2020-01-ABC-06-Tasci.pdf L2 - http://czasopisma.pan.pl/Content/115000 PY - 2020 IS - No 1 EP - 77 DO - 10.24425/abcsb.2020.131664 KW - dehydroabietic acid KW - GmWRKY-71 KW - reactive oxygen species KW - salt stress KW - soybean A1 - Tasci, Eda A1 - Dinler, Burcu Seckin PB - Biological Commission of the Polish Academy of Sciences – Cracow Branch VL - vol. 62 DA - 2020.07.14 T1 - Dehydroabietic acid mediated WRKY71 gene expressions and reactive oxygen species regulation in soybean under salinity SP - 63 UR - http://czasopisma.pan.pl/dlibra/publication/edition/115000 T2 - Acta Biologica Cracoviensia s. Botanica ER -