Identification of a New Anthracnose Pathogen Colletotrichum camelliae and Its Pathogenicity Test on Camellia oleifera

doi:10.13560/j.cnki.biotech.bull.1985.2016.06.014

Abstract

Abstract: Anthracnose is one of the most critical diseases of Camellia oleifera in China because it infects the leaves，flowers and fruits of C. oleifera，leading to severe defoliation and pre-mature drop of fruits. Pathogens from anthracnose-diseased C. oleifera leaves collected in Hunan，Jiangxi and Hainan provinces were identified based on morphological observation and multiple-gene sequences，and pathogenicity test was conducted on various cultivars of C. oleifera. The results revealed that isolated pathogens were Colletotrichum camelliae，which is the first report on this pathogen in China. Pathogenicity tests on various cultivars showed that C. camelliae infected the leaves of different C. oleifera cultivars，such as Xianglin-1，Xianglin-69，Xianglin-89，Ganwu-1，Ganwu-16，Guangxi red flower，Changlin-3，Changlin-4，Changlin-23，Changlin-53，Changlin-148，and Changlin-190，however，spot appearances were different on the leaves of different C. oleifera cultivars.

Key words: Camellia oleifera, Colletotrichum camelliae, anthracnose, multiple-gene sequences, pathogenicity

LI Yang, LI He, ZHOU Guo-ying, LIU Jun-ang. Identification of a New Anthracnose Pathogen Colletotrichum camelliae and Its Pathogenicity Test on Camellia oleifera[J]. Biotechnology Bulletin, 2016, 32(6): 96-102.

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