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Influence of Salinity Treatment on Seed Germination and Polyamine Synthesis in Barnyard Grass(Echinochloa hispidula)  

Yun, Sol (Department of Plant Resources Science, Hankyong National University)
Lee, Su-Yeon (Department of Plant Resources Science, Hankyong National University)
Lim, Hyo-Jin (Department of Plant Resources Science, Hankyong National University)
Shim, Myoung-Bo (Institute of Ecological Phytochemistry, Hankyong National University)
Sung, Jwa-Kyung (Department of Agronomy, Chungbuk National University)
Kim, Tae-Wan (Department of Plant Resources Science, Hankyong National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.37, no.1, 2004 , pp. 19-24 More about this Journal
Abstract
To illuminate the physiological response to salinity, barnyard grass (Echinochloa hispidula) was germinated with high concentration of NaCl and KCL. Duration and promptness of seed germination were observed. Under salt stress, lipid peroxidation and polyamine biosynthesis were also analyzed. It appeared that high salt treatments per se did not provoke an inhibition of germination although the process of germination was significantly delayed. In context of lipid peroxidation and polyamine biosynthesis, we would imply that barnyard grass is tolerant to salinity. The increase in lipid peroxidation and putrescine content was prolonged only for 1 day after saline treatment. It could be concluded that these early acciimulation of putrescine and production of lipid peroxide seems to be associated with salt tolerance in the short-term. The physiological interest of these responses was discussed.
Keywords
Barnyard grass; Lipid peroxidation; Polyamine; Salt stress;
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