Dehydroabietic Acid Mediated WRKY71 Gene Expressions and Reactive Oxygen Species Regulation in Soybean Under Salinity
Yazarlar (2)
Prof. Dr. Eda Tascı Sinop Üniversitesi, Türkiye
Prof. Dr. Burcu SEÇKİN DİNLER Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Acta Biologica Cracoviensia Series Botanica (Q3)
Dergi ISSN 0001-5296 Dergi Bilgileri (2020)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2020
Cilt / Sayı / Sayfa 62 / 1 / 63–77 DOI 10.24425/abcsb.2020.131664
Makale Linki http://journals.pan.pl/Content/115000/PDF/2020-01-ABC-06-Tasci.pdf
UAK Araştırma Alanları
Bitki Fizyolojisi
Özet
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.
Anahtar Kelimeler
Dehydroabietic acid | GmWRKY-71 | Reactive oxygen species | Salt stress | Soybean