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Volume 14 Issue 6
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Article Navigation >  Forest Research  > 2001 >  14(6): 633-640

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Study on the Effects of Chilling Stress on the Metabolism of Acacia mangium

  • 1.

    College of Biotechnology, South China Agricultural University, Guangzhou　510642, Guangdong, China

  • 2.

    Faculty of Food and Bioengineering, South Ch ina University of Technology, Guangzhou　510641, Guangdong, China

  • 3.

    Management Office of Lianhuashan Park, Shenzhen　518100, Guangdong, China

  • Received Date: 2000-08-24
  • The plants of Acacia mangium QLD19835 clone were studied under the chilling stress in the phytotrons. The plants suffered from temperature changes from30 ℃ to 6 ℃. The results showed that the electrical conductivity, the contents of soluble sugar, proline, soluble protein in the phyllodia (petioles) increased in the low temperature stress. The activities of ATPase, catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) changed with chilling treatment. Under the stress of low temperature, cell membrane system was damaged and the electrical conductivity increased. The activity of ATPase decreased. These physiological changes might play an important role in protecting cell stability and promoting the enduring ability of plants to the low temperature. The results indicated that Acacia mangium QLD19835 clone had enduring ability to the stress of low temperature.
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Study on the Effects of Chilling Stress on the Metabolism of Acacia mangium

  • 1. College of Biotechnology, South China Agricultural University, Guangzhou　510642, Guangdong, China
  • 2. Faculty of Food and Bioengineering, South Ch ina University of Technology, Guangzhou　510641, Guangdong, China
  • 3. Management Office of Lianhuashan Park, Shenzhen　518100, Guangdong, China
  • Received Date: 2000-08-24

Abstract: The plants of Acacia mangium QLD19835 clone were studied under the chilling stress in the phytotrons. The plants suffered from temperature changes from30 ℃ to 6 ℃. The results showed that the electrical conductivity, the contents of soluble sugar, proline, soluble protein in the phyllodia (petioles) increased in the low temperature stress. The activities of ATPase, catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) changed with chilling treatment. Under the stress of low temperature, cell membrane system was damaged and the electrical conductivity increased. The activity of ATPase decreased. These physiological changes might play an important role in protecting cell stability and promoting the enduring ability of plants to the low temperature. The results indicated that Acacia mangium QLD19835 clone had enduring ability to the stress of low temperature.

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