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Bulletin of Botanical Research ›› 2007, Vol. 27 ›› Issue (5): 574-577.doi: 10.7525/j.issn.1673-5102.2007.05.015

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The Effect of Low Temperature Stress on Antioxidant Enzyme Activities of Buxus sempervirens L. Under Different Light Conditions

XU Na;DONG Xiao-Hong;GUAN Yang*;WANG Jing   

  1. 1.Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin　150040 2.Department of Biology,Harbin Normal University,Harbin　150080
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-20 Published:2007-09-20
  • Contact: GUAN Yang
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Abstract: The effect of low temperature stress on antioxidant enzyme activity under different conditions were studied. The results showed that the relative membrane permeability and content of MDA were higher than the control. The activitie of SOD under low temperature was higher than the others and the highest level under 5℃/24 h light. The activity of CAT maintained relatively high level under low temperature and different light conditions. It was higher under 5℃12 h light/12 h dark than other groups. The activity of POD was higher under low temperature with light and was lower under dark than the control. The POD、SOD、CAT activity increased under chilling. This might be one of the reason for strong resistance to chilling in Buxus sempervirens.

Key words: Buxus sempervirens, low temperature stress, light, antioxidant enzyme activities

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