Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (13): 141-145.doi: 10.11924/j.issn.1000-6850.casb16060014

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Biological Characteristics of Colletotrichum gloeosporioides in Pericarpium zanthoxyli

Song Ting1,2, Xi Junqiang3, Jiao Jian1   

  1. (1College of Forestry, Gansu Agricultural University, Lanzhou 730070;2Forestry Bureau of Jingning, Jingning Gansu 743400; 3Pingliang Guanshan Forestry Authority, Pingliang Gansu 744100)
  • Received:2016-06-02 Revised:2016-08-24 Accepted:2016-10-25 Online:2017-05-16 Published:2017-05-16

Abstract: The aim is to provide a theoretical basis for the biological characteristics of Colletotrichum gloeosporioides and effective prevention of Pericarpium zanthoxyli anthracnose. In this research, the mycelium growth rate method, Petri dish slide method and concentrated sulfuric acid method was used to study the influence of different environmental conditions on Colletotrichum gloeosporioides growth and spore germination. The results showed that: the optimum temperature of Colletotrichum gloeosporioides mycelial growth and spore germination was 25℃ and 20℃, respectively; pH 8 was the most suitable condition for the mycelial growth and spore germination; alternating light and dark was beneficial to mycelial growth and full sunlight promote to spore germination; the higher the relative humidity, the greater the spore germination rate. Therefore, the occurrence and spread of pericarpium zanthoxyli anthracnose could be controlled effectively when suitable temperature, pH value, light condition and relative humidity were avoided in Colletotrichum gloeosporioides growth.