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《Chinese Agricultural Science Bulletin》 2010-23
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Identification of Lacquer anthracnose Pathogen and its Biological Characteristics Research

Jiang Zhengjun 1,Jia Lin 2,Jiang Lei 2,Li Rui 2,Tan Genjia 2,Jiang Tong 2 (1 Administrative Center of Agricultural Gardens and Experimental Stations,Anhui Agricultural University,Hefei 230036;2 School of Plant Protection,Anhui Agricultural University,Hefei 230036)  
To ascertain the species of Lacquer anthracnose pathogen and its growth characteristics,Lacquer leaves infected with anthracnose disease were collected,and pure culture of the pathogen was acquired by tissue isolation method.The pathogen is determined to be Colletotrichum gloeosporioides (Penz.) Sacc.by its morphologic characters,cultural characteristics,pathogenicity and host range.Further research work on its biological characteristics was conducted.It was found that mycelial growth of Lacquer anthracnose pathogen had a linear correlation with the cultural time.The temperature range of the mycelial growth was 10~35℃,and the optimum temperature was 25~28℃.The lethal temperature of conidia was 48℃.The conidia cannot germinate until relative humidity reached 90%.Continuous light may promote the increasing of yield and sporulation of mycelia.The mycelia can grow at the range of pH 3~12 and the optimum growth pH was 6.0.The Lacquer anthracnose pathogen can utilize many kinds of carbon and nitrogen source.The mycelia will grow better if glucose,fruitose was used as the carbon sources and asparamide,alanine was used as the nitrogen sources.
【Fund】: 安徽省教育厅自然科学基金重点项目“辅助离子注入选育高效生防菌对苹果采后炭疽病的控制效果与作用机理研究”(KJ2007A095)
【CateGory Index】: S763.7
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