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Bulletin of Botanical Research ›› 2002, Vol. 22 ›› Issue (1): 42-45.

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STUDY ON THE RELATIONSHIP BETWEEN THE CHANGE OF PROTECTION ENZYME ACTIVITIES AND THE RESISTANT ABILITY TO LOW TEMPERATURE STRESS IN ACACIA MANGIUM

WU Guang-hong1, ZHAN Fu-jian1, LUO Huan-liang2, ZHAO Feng1, LUO Zhi-wei1, MENG Li-ke1, HUANG Zhuo-lie1   

  1. 1. College of Biotechnology, South China Agricultural University, Guangzhou 510642;
    2. College of Food and Bioengineering South China University of Technology, Guangzhou 510641
  • Received:2001-05-21 Online:2002-03-15 Published:2016-06-14

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Abstract: After the plants of Acacia mangium QLD19835 clone were treated by low temperature in phytotrone, the physiology and the enzyme activities changed obviously. When the temperature reduced to -6℃, the cell membranes were damaged and the activity of ATPase decreased, but protein content increased obviously. The activities of SOD, CAT, and POD reduced but sustained in a relatively high level as the plants suffered from low temperature. The results of the experiment indicated that Acacia mangium QLD 19835 clone could have a protective reaction to the damage from low temperature. The high content of solube protein and relatively high level of enzyme activities of CAT, SOD, and POD in plants might be the important reason for high antichilling ability of the plants.

Key words: Acacia mangium, low temperature stress, protective enzyme activities