%0 Journal Article %A LIN Ying-Chao %A TANG Zhong-Hua* %A YANG Lei %A ZHAO Xiao-Ju %T Effects of Increased Endogenous Ethylene on Plant Salt Tolerance in Arabidopsis Seedlings under Saline Condition %D 2010 %R 10.7525/j.issn.1673-5102.2010.06.014 %J Bulletin of Botanical Research %P 703-707 %V 30 %N 6 %X The effects of endogenous ethylene on plant salt tolerance in Arabidopsis seedlings in exposure to salinity were investigated in the present work. The results showed that 100 mmol·L-1 NaCl significantly decreased seedling root elongation and root fresh weight. Application of exogenous ethephon obviously alleviated salt-induced inhibition of root length and biomass accumulation. Comparatively, exogenous ACC had a positive effect merely on alleviating root weight inhibition caused by salt stress. The root ROS level in salt-stressed seedlings was also increased drastically, and both ethephon and ACC could keep the root ROS level at a low level as control under NaCl stress conditions. It was proposed that improvement of Arabidopsis salt tolerance induced by ethylene is tightly related to root redox state. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2010.06.014