Biotechnology Bulletin ›› 2016, Vol. 32 ›› Issue (6): 96-102.doi: 10.13560/j.cnki.biotech.bull.1985.2016.06.014

• Research report • Previous Articles     Next Articles

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

LI Yang1,2, LI He1,2, ZHOU Guo-ying1,2, LIU Jun-ang1,2   

  1. 1. Key Laboratory for Non-wood Forest of Cultivation and Conservation of Ministry of Education, Central South University of Forestry and Technology,Changsha 410004
    2. Hunan Key Laboratory of Forest Protection,Central South University of Forestry and Technology,Changsha 410004
  • Received:2015-07-22 Online:2016-06-27 Published:2016-06-28

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