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2017 1

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species associated with eucalypt diseases in southern China

Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD

《农业科学与工程前沿（英文）》 2017年 第4卷 第4期   页码 433-447 doi: 10.15302/J-FASE-2017173

摘要： The genus includes several important pathogens of species of and , mainly causing leaf and shoot blight. Recently, extensive shoot and leaf dieback and stem cankers suspected to be diseases have been found on young trees in Guangdong and Hainan Provinces. The occurrence of species and their association with eucalypt hosts within China needs to be investigated for tree diseases management. The isolates from the diseased samples were identified based on their morphological structures and phylogenetic analyses with DNA sequence data for the internal transcribed spacer region and large ribosome subunit RNA of the nuclear rDNA. This work revealed that three species of were present: from , from , both isolated from young eucalypt leaves and shoots in Guangdong Province, and , which was isolated from stem cankers of at four different sites across Guangdong and Hainan Provinces. These results confirmed that agents were associated with the diseases occurring on eucalypt hosts in South China. This is the first report of in Asia and the first report of in China on trees.

关键词： Corymbia     Eucalyptus     forest pathogens     plantations     Myrtaceae    

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species associated with eucalypt diseases in southern China

Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD

期刊论文