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Identification and characterization of Pestalotiopsis spp. causing twig blight disease of bayberry (Myrica rubra Sieb. & Zucc) in China

文献类型： 外文期刊

作者： Ren, Hai-Ying 1 ; Li, Gang 2 ; Qi, Xing-Jiang 3 ; Fang, Li 1 ; Wang, Han-Rong 1 ; Wei, Ji-Guang 4 ; Zhong, Shaobin 5 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbe, Inst Hort Sci, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, MOA Key Lab Pesticide Residue Detect, Inst Qual & Standard Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Hort Sci, Hangzhou 310021, Zhejiang, Peoples R China

4.Guangxi Univ, Coll Agr, Nanning 530005, Peoples R China

5.N Dakota State Univ, Dept Plant Pathol, Fargo, ND 58108 USA

关键词： Myrica rubra;Twig blight;Pestalotiopsis versicolor;Pestalotiopsis microspora;Internal Transcribed Spacer (ITS);beta-tubulin gene

期刊名称：EUROPEAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.907； 五年影响因子：2.022 ）

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收录情况： SCI

摘要： Bayberry (Myrica rubra) is a fruit tree native to the subtropical regions of China. It produces fruit with a unique taste and pharmacological characteristics, thus making it a widely cultivated tree commercially in many regions of China, including Zhejiang, Fujian, Guizhou, Sichuan and Yunnan Provinces. Recently, a twig blight disease occurred on the fruit tree and caused destructive damage of plantings in the Zhejiang Province. However, the etiology of the disease was unclear. This study was carried out to identify the causal agent(s) of the blight disease on bayberry. Fungal isolates were obtained from blighted twig samples collected from bayberry fields in Xianju, Rui'an, and Huangyan of Zhejiang Province. The majority (87.9 %) of the 257 fungal isolates were identified as Pestalotiopsis spp. based on their conidial morphology. DNA sequences of the internal transcribed spacer (ITS) region of the ribosomal RNA gene and the beta-tubulin gene were obtained from six representative strains (XJ27, XJ42, RA2-1, YS26, YS44 and RA1-2) of the Pestalotiopsis spp. Phylogenetic analysis showed that three of the strains (XJ27, XJ42, and RA2-1) grouped with P. versicolor (Speg.) Steyaert while the other three strains (YS26, YS44 and RA1-2) grouped with P. microspora (Speg.) Batista & Peres. Pathogenicity tests in the greenhouse showed that all these six isolates of Pestalotiopsis spp. caused twig blight disease symptoms on bayberry plants, which were the same as observed in naturally infected plants in the field. Our results clearly indicated that P. versicolor and P. microspora were the major pathogens causing the twig blight disease on bayberry in southern China.

  • 相关文献

[1]杨梅凋萎病菌异色拟盘多毛孢菌(Pestalotiopsis versicolor)的生物学特性研究（英文）. 任海英,李岗,戚行江,韦继光,梁森苗. 2013

[2]Effects of culture media, carbon and nitrogen sources and environmental factors on mycelial growth and sporulation of Pestalotiopsis microspora strains, the agent of bayberry twig blight in southern China. Ren, Hai Ying,Liang, Senmiao,Zheng, Xiliang,Qi, Xingjing,Li, Gang,Yang, Guiling,Wei, Jiguang.

[3]MICROSATELLITE PRIMERS IN RED BAYBERRY, MYRICA RUBRA (MYRICACEAE). Xie, Xiaobo,Qiu, Yingying,Zheng, Xiliang,Qi, Xingjiang,Ke, Liping,Wu, Guanting,Chen, Jinqing,Ahn, Sangnag. 2011

[4]Identification of Pestalotiopsis clavispora causing brown leaf spot on Chinese bayberry in China. Lu, Lian-Ming,Chen, Guo-Qing,Hu, Xiu-Rong,Du, Dan-Chao,Pu, Zhan-Xu,Peng, Ai-Tian,Cheng, Bao-Ping,Peng, Ai-Tian,Cheng, Bao-Ping.

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