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Identification of pathogens causing branch canker on Cinnamomum chekiangense
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Quanzhu CHEN1, Senhui HAN1, 2, Zhongpeng JIANG1, 3, Weican LI1, Youwei WU1, Xiaozhen YE4, *
Journal of Forest and Environment | 2025, 45(6) : 649 - 656
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Journal of Forest and Environment | 2025, 45(6): 649-656
• Forest protection •
Identification of pathogens causing branch canker on Cinnamomum chekiangense
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Quanzhu CHEN1, Senhui HAN1, 2, Zhongpeng JIANG1, 3, Weican LI1, Youwei WU1, Xiaozhen YE4, *
Affiliations
  • 1.College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • 2.Liangshan Yi Autonomous Prefecture Academy of Forestry and Grassland Sciences, Xichang, Sichuan 615000, China
  • 3.Natural Resources Bureau of Anzhou District, Mianyang, Sichuan 622600, China
  • 4.Jinshan College, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
Published: 2025-11-15 doi: 10.13324/j.cnki.jfcf.202506014
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Canker was a newly found disease causing branch canker, branch dieback, and even death of Cinnamomum chekiangense. The study aimed to identify the causal agents of branch canker on C. chekiangense, thus providing theoretical support for forecasting and controlling this disease scientifically and effectively in practice. A total of 15 fungal isolates were obtained from diseased samples via the tissue isolation method. Pathogenicity assays demonstrated that strains JYZJZ2 and JYZJZ6 could infect the branches of C. chekiangense and reproduce typical canker symptoms, while they showed a difference in pathogenicity, with JYZJZ2 showing stronger pathogenicity. JYZJZ2 and JYZJZ6 were identified as Lasiodiplodia pseudotheobromae and L.iranensis, respectively, by comparing the DNA sequence data of internal transcribed spacer (ITS), translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), and largest subunit of RNA polymerase Ⅱ (rpb2) gene regions using the PhyloSuite platform, and by Ⅱ the morphological features. This is the first report of L. pseudotheobromae and L. iranensis causing canker on C. chekiangense worldwide.

Cinnamomum chekiangense  /  canker  /  pathogen identification  /  Lasiodiplodia
Quanzhu CHEN, Senhui HAN, Zhongpeng JIANG, Weican LI, Youwei WU, Xiaozhen YE. Identification of pathogens causing branch canker on Cinnamomum chekiangense[J]. Journal of Forest and Environment, 2025 , 45 (6) : 649 -656 . DOI: 10.13324/j.cnki.jfcf.202506014
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Year 2025 volume 45 Issue 6
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Article Info
doi: 10.13324/j.cnki.jfcf.202506014
  • Receive Date：2025-06-17
  • Online Date：2026-05-28
  • Published：2025-11-15
Article Data
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History
  • Received：2025-06-17
  • Revised：2025-09-03
Affiliations
    1.College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
    2.Liangshan Yi Autonomous Prefecture Academy of Forestry and Grassland Sciences, Xichang, Sichuan 615000, China
    3.Natural Resources Bureau of Anzhou District, Mianyang, Sichuan 622600, China
    4.Jinshan College, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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