Mycobiology

The Korean Society of Mycology (한국균학회)
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Identification and Characterization of Gonatobotryum apiculatum Causing Leaf Spot and Blight on Sinowilsonia henryi

  • Gao, Ying (Department of Plant Protection, College of Agriculture, Yangtze University) ;
  • Liu, Hai Feng (Department of Plant Protection, College of Agriculture, Yangtze University) ;
  • Song, Zheng Xing (Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Du, Xiao Ying (Department of Plant Protection, College of Agriculture, Yangtze University) ;
  • Deng, Jian Xin (Department of Plant Protection, College of Agriculture, Yangtze University)
  • Received : 2019.05.19
  • Accepted : 2019.10.14
  • Published : 2020.02.29
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Abstract

Sinowilsonia henryi is a rare and endangered plant, as well as an endemic species in China. In July 2018, leaf spot and blight disease was observed on S. henryi in Yichang, Hubei, China. A fungus isolated from disease tissues was identified as Gonatobotryum apiculatum based on morphology and sequence analyses of ITS and LSU regions. Phylogenetic analyses indicated that the species belongs to Dothioraceae (Dothideales). Morphologically, the species produced two distinct types of conidia from authentic media, both conidia were described here. Pathogenicity tests showed that the fungus is a pathogen causing leaf spots on S. henryi. This is the first report of leaf spot and blight disease on S. henryi caused by G. apiculatum in China.

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References

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