Biologia plantarum 51:567-570, 2007 | DOI: 10.1007/s10535-007-0124-7

Lanthanum relieves salinity-induced oxidative stress in Saussurea involucrata

C.-M. Xu1,2, B. Zhao1, X.-D. Wang1, Y.-C. Wang1,*
1 Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
2 Graduate School of Chinese Academy of Sciences, Beijing, P.R. China

Changes in growth, physiological and biochemical characteristics under salt stress with or without La3+ treatment in Saussurea involucrata Kar. et Kir. were investigated. The results showed that La3+ relieved the plant growth inhibition, improved the leaf water potential and water content, increased the soluble protein and the proline contents and decreased malondialdehyde content under salt stress. Further, addition of La3+ significantly increased the activities of superoxide dismutase, ascorbate peroxidase, catalase, and glutathione reductase, decreased the photosynthetic pigment decomposition and increased the ratio of total chlorophyll to carotenoids under salt stress.

Keywords: antioxidative enzymes; carotenoids; chlorophyll; growth; leaf water potential; proline; proteins
Subjects: antioxidants, antioxidant enzymes; ascorbate peroxidase; carotenoids; catalase; chlorophyll a,b; glutathione reductase; growth analysis, plant development, biomass and yield enhancement; lanthanum; malondialdehyde; proline; proteins; reactive oxygen species (ROS); salinity, salt stress; Saussurea involucrata; water potential

Received: March 10, 2006; Accepted: July 25, 2006; Published: September 1, 2007Show citation

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Xu, C.-M., Zhao, B., Wang, X.-D., & Wang, Y.-C. (2007). Lanthanum relieves salinity-induced oxidative stress in Saussurea involucrata. Biologia plantarum, 51(3), 567-570. doi: 10.1007/s10535-007-0124-7.
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