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中国生物工程杂志

China Biotechnology
China Biotechnology  2011, Vol. 31 Issue (7): 65-71    DOI:
    
Physio-Biochemical Analysis of Solanum torvum Defense Against Verticillium dahliae Infection
WANG Zhong1,2, YANG Qing2
1. Research Center of Systematic and Evolutionary Botany Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210095, China;
2. State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
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Abstract  

The physiological mechanisms in response to Verticillium wilt were analyzed by comparing the physiological indicators of Solanum torvum and Suqi eggplant infected with Verticillium. dahliae Kleb. The results showed that: (1) S. torvum exhibits the strong capability of egodefense and self-rehabilitation, compared with the cultivar Suqi. (2) The active oxygen scavenging system (such as: SOD, POD, CAT enzymes activity) in S. torvum was higher than in Suqi during the treatment. MDA content in S. torvum decreased after treatment, but increased in the Suqi. The results suggested that infection might activate active oxygen scavenging system in vivo, then producing certain defensive substances (such as lignin and chlorogenic acid et al.) quickly, while reducing the accumulation of MDA in the body. (3) The response time of the physiological indicators in S. torvum in response to V. dahliae was different: Activity of POD, PAL and content of soluble protein in S. torvum change rapidly within 12h, and then, change in the activity of SOD, PPO, CAT and MDA content. Eventually, S. torvum resist Verticillium. Wilt infection effectively by combinations of each enzyme.



Key wordsSolanum torvum      Verticillium wilt      Response mechanism     
Received: 28 December 2010      Published: 25 July 2011
ZTFLH:  Q945  
  Q946  
Cite this article:

WANG Zhong, YANG Qing. Physio-Biochemical Analysis of Solanum torvum Defense Against Verticillium dahliae Infection. China Biotechnology, 2011, 31(7): 65-71.

URL:

https://manu60.magtech.com.cn/biotech/     OR     https://manu60.magtech.com.cn/biotech/Y2011/V31/I7/65


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