Exogenous hydrogen peroxide, nitric oxide and calcium mediate root ion fluxes in two non-secretor mangrove species subjected to NaCl stress

• Published in: Tree physiology Vol. 33; no. 1; pp. 81 - 95
• Main Authors: Lu, Yanjun, Li, Niya, Sun, Jian, Hou, Peichen, Jing, Xiaoshu, Zhu, Huipeng, Deng, Shurong, Han, Yansha, Huang, Xuxin, Ma, Xujun, Zhao, Nan, Zhang, Yuhong, Shen, Xin, Chen, Shaoliang
• Format: Journal Article
• Language: English
• Published: Canada 01.01.2013
• Subjects: Calcium - metabolism; Hydrogen Peroxide - metabolism; Nitric Oxide - metabolism; Plant Roots - drug effects; Plant Roots - metabolism; Potassium - metabolism; Rhizophoraceae - drug effects; Rhizophoraceae - metabolism; Sodium - metabolism; Sodium Chloride - pharmacology

Using 3-month-old seedlings of Bruguiera gymnorrhiza (L.) Savigny and Kandelia candel (L.) Druce, we compared species differences in ionic homeostasis control between the two non-secretor mangrove species. A high salinity (400 mM NaCl, 4 weeks) resulted in a decline of the K(+)/Na(+) ratio in root a...