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Allelopathic effects of Solanum glycoalkaloids and their interactions
Fang Sun,Li Shengyu,Zhao Xuesong,He Dajun,Guo Yongjian, Yifa Zhou *
Key Laboratory of Vegetation Ecology, School of Life Sciences, Northeast Normal University
*Correspondence author
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Funding: 教育部博士点基金,吉林省自然科学而基金（No.20070200004,20040546）
Opened online:27 September 2008
Accepted by: none
Citation: Fang Sun,Li Shengyu,Zhao Xuesong.Allelopathic effects of Solanum glycoalkaloids and their interactions[OL]. [27 September 2008] http://en.paper.edu.cn/en_releasepaper/content/24433
 
 
The inhibiting effects on cucumber radicle growth of the four glycoalkaloids isolated from solanum plants were evaluated. The individually inhibitory effect of the four glycoalkaloids was concentration-dependent. The 1:1 mixtures of chaconine and solanine or solamargine and solasonine, produced markedly synergistic effects while the mixtures of unpaired glycoalkaloids from different plants did not have this effects. The possible antagonistic, additive or synergistic effect of the mixtures of two compounds in different ratios was tested by isobole diagram method. The results showed that the mixtures of paired glycoalkaloids chaconine/solanine acted synergistically in the test ratios; solamargine/solasonine caused synergistic effect in the ratios of 3:1, 2:1, antagonistic effect in the ratios of 1:2 to 1:3; additive response in the ratios of 3:2, 1:1 and 2:3. The mixtures of unpaired glycoalkaloids did not cause synergism over the range of the test ratios.
Keywords:allelopathy; glycoalkaloid; interaction
 
 
 

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