Fujian Journal of Agricultural Sciences ›› 2008, Vol. ›› Issue (4): 364-367.

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PCR detection for Leifsonia xyli subsp. Xyli,pathogen of the sugarcane ratoon stunting disease

QUE You-xiong1,2, XU Jing-sheng1,2, XU Li-ping1,2, GAO San-ji1,2, CHEN Ru-kai1,2   

  1. 1. Sugarcane Institute of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;
    2. Key Lab of Eco-physiology & Genetics Improvement for Sugarcane, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • Received:2008-03-07 Revised:2008-04-16 Online:2008-10-15 Published:2008-10-15

Abstract: A pair of specific primers were designed to amplify the internal transcript space region of the 16S-23S ribosomal DNA of Leifsonia xyli subsp. xyli.(Lxx),pathogen that causes the ratoon stunting disease(RSD).As a result,a PCR amplification system was established.Four out 5 cultivars planted in the Sugarcane Germplasm Resources Center of the Sugarcane Institute at Fujian Agriculture and Forestry University were infected by the Lxx.The PCR products of the infected plants and a positive control were sequenced and analyzed.The sequences were found to be identical.When.compared the NCBI data,they were 100% homologous on the same genome region of DNA with Lxx of Brazil and Australia.On the other hand,there were a mismatched and an insertion base pair in the Lxx as.compared with the strain from Louisiana,USA.

Key words: RSD, sugarcane, PCR detection

CLC Number: 

  • S435.661