Endophytic fungi assemblages from 10 Dendrobium medicinal plants (Orchidaceae)

  • Juan Chen
  • Ke-Xing Hu
  • Xiao-Qiang Hou
  • Shun-Xing Guo
Original Paper


Dendrobium is the largest genus of tropical epiphytic orchid, some of which are traditional Chinese medicinal plants. The therapeutic components varied significantly among species. Endophytic microbes (fungi) hidden in medicinal plants may play an important effect on the overall quality of herb. Investigation of fungal composition in host plants is the first step toward elucidating the relationship endophyte-therapeutic content of herbal medicine. In this study, 401 culturable fungal endophytes were isolated and identified from 10 species of medicinal Dendrobium based on morphological and molecular techniques. The results showed that endophytic fungi from Dendrobium plants exhibited high biodiversity (37 genera, about 80 species). Acremonium, Alternaria, Ampelomyces, Bionectria, Cladosporium, Colletotrichum, Fusarium, Verticillium and Xylaria were the dominant fungal endophytes. Tropical epiphytic orchids appear to vary in degree of host specificity in their endophytic fungi.


Orchidaceae Endophyte Taxonomy Medicinal plant 



This investigation was supported by the National High Technology Research and Development Program of China (2008AA09Z405), National S&T Major Special Project on Major New Drug Innovation (2009ZX09301-003-3-3) and the National Natural Science Foundation of China (30900004). We thank Dr. Liang-Dong Guo, Institute of Microbiology, Chinese Academy of Sciences, for providing references of fungi identification.

Conflict of interest



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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Juan Chen
    • 1
  • Ke-Xing Hu
    • 1
  • Xiao-Qiang Hou
    • 1
  • Shun-Xing Guo
    • 1
  1. 1.Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingPeople’s Republic of China

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