Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (17): 123-128.doi: 10.11924/j.issn.1000-6850.casb20200100055

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Identification of the Pathogen of Ficus carica Epidemic Disease in Sichuan

Zhai Min1, Xian Yunxi1, Huang Xiaoqin1,2, Zhang Lei1,2, Zhou Xiquan1, Liu Yong1,2(), Yang Xiaoxiang1,2()   

  1. 1 Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066
    2 Key Laboratory of Integrated Pest Management in Southwest Agriculture Crops of Ministry of Agriculture and Rural Affairs, Chengdu 610066
  • Received:2020-01-16 Revised:2020-03-23 Online:2020-06-15 Published:2020-06-09
  • Contact: Liu Yong,Yang Xiaoxiang E-mail:liuyongdr@163.com;yxxsaas@163.com

Abstract:

To identify the pathogen species of Ficus carica epidemic disease outbreak in Sichuan Province, the occurrence of F. carica epidemic disease in F. carica planting areas in Sichuan was investigated, and the diseased fruits were collected. The pathogen was isolated and cultured by tissue isolation method, and was identified by combining morphology and molecular identification. The results showed that the pathogen mycelium was white, the oospores were spherical, and the sporangiums were oval or ovoid, with papillae at the top. The sequence analysis revealed 99% sequence identities with Phytophthora palmivora. According to morphology and molecular identification, the pathogen of F. carica epidemic disease in Sichuan Province was identified as P. palmivora.

Key words: Ficus carica, phytophthora blight, pathogenic fungi, isolation and identification, Phytophthora palmivora

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