Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (1): 116-126.DOI: 10.3969/j.issn.1000-2561.2020.01.017

• Crop Pests, Diseases and Their Control, Environmental Protection • Previous Articles     Next Articles

Virus Infection Situation of Fifty-two Sugarcane Varieties in Guangxi

SHEN Linbo1,2,WU Nannan1,FENG Xiaoyan2,XIONG Guoru2,ZHAO Tingting2,WANG Wenzhi2,WANG Jungang2,ZHANG Shuzhen1,2,*()   

  1. 1. College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
    2. Sugarcane Research Center, Chinese Academy of Tropical Agricultural Sciences / Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Haikou, Hainan 571101, China
  • Received:2018-08-23 Revised:2019-06-20 Online:2020-01-25 Published:2020-01-21
  • Contact: ZHANG Shuzhen

Abstract:

To understand the virus infection situation of the integrated demonstration and regional test sugarcane varieties in the national sugar system in Guangxi, leaf samples with or without symptoms of sugarcane mosaic disease, sugarcane yellow leaf disease and sugarcane bacilliform disease were collected from 52 sugarcane varieties in 7 sugarcane areas in Guangxi, including Beihai, Nanning, Chongzuo, Baise, Laibin, Liucheng, Guilin. Five kinds of viruses were detected by RT-PCR and PCR with specific primers, including Sugarcane yellow leaf virus (SCYLV), Sugarcane streak mosaic virus (SCSMV), Sorghum mosaic virus (SrMV), Sugarcane mosaic virus (SCMV) and Sugarcane bacilliform virus (SCBV). The average detection rate of SCYLV, SCSMV, SrMV, SCMV, SCBV was 25%, 7.97%, 7.69%, 7.42% and 68.41%, respectively. Mixed infection of different viruses was widespread in the seven sugarcane areas, the mixed infection rate in Beihai was even higher than the single virus infection rate. The total infection rate of 52 sugarcane varieties affected by the five viruses was 79.67% in Guangxi. There are serious potential threats to the safety of sugarcane production. It is recommended to plant virus-free seedlings to control the occurrence of sugarcane virus diseases.

Key words: Sugarcane yellow leaf virus (SCYLV), Sugarcane streak mosaic virus (SCSMV), Sorghum mosaic virus (SrMV), Sugarcane mosaic virus (SCMV), Sugarcane bacilliform virus (SCBV), Guangxi

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