马占相思树对低温冻害的抗性研究

doi:10.11707/j.1001-7488.20030109

Scientia Silvae Sinicae ›› 2003, Vol. 39 ›› Issue (1): 56-61.doi: 10.11707/j.1001-7488.20030109

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STUDY ON THE RESISTANCE OF ACACIA MANGIUM TO LOW TEMPERATURE STRESS

Zhan Fujian¹,Wu Guanghong²,Huang Zhuolie³,Meng Like⁵,Luo Huanliang⁴

College of Life Science,South China Agricultural University\ Guangzhou510642；College of Food and Biological Engineering,South China University of Technology\ Guangzhou510641

Received:2000-10-23 Revised:1900-01-01 Online:2003-01-25 Published:2003-01-25

Abstract

Abstract:

The relationship between the antichilling ability of the plants and their physiological changes was studied in Acacia mangium PNE 17868 clone suffered from temperature changes from 12℃ to -6℃.The results showed that the electrical conductivity of the cells increased obviously,and the activity of ATPase reduced.At the same time the contents of soluble sugar,proline,and protein increased.Under the temperature of 0～-6℃,the activities of the protective enzymes,I.e.catalase(CAT),peroxidase(POD),and superoxide dismutase(SOD),increased firstly and then decreased slightly.However they still sustained in a relatively high level.This indicated that the plants of Acacia mangium PNE 17868 clone had a relatively high adaptivity to cold stress.

Key words: Acacia mangium, Antichilling ability, Protective enzymes

Zhan Fujian;Wu Guanghong;Huang Zhuolie;Meng Like;Luo Huanliang. STUDY ON THE RESISTANCE OF ACACIA MANGIUM TO LOW TEMPERATURE STRESS[J]. Scientia Silvae Sinicae, 2003, 39(1): 56-61.

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STUDY ON THE RESISTANCE OF ACACIA MANGIUM TO LOW TEMPERATURE STRESS

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