Biodiversity Science ›› 2019, Vol. 27 ›› Issue (1): 81-87.doi: 10.17520/biods.2018156

• Bioinventories • Previous Article     Next Article

Species diversity and distribution of wood-decaying fungi in Gutianshan National Nature Reserve

Li Tong1, 2, Li Junning1, 2, Wei Yulian1, *()   

  1. 1 Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016
    2 University of Chinese Academy of Sciences, Beijing 100049
  • Received:2018-06-03 Accepted:2018-11-30 Online:2019-01-31
  • Wei Yulian

Wood-decaying fungi decompose the cellulose, hemicellulose and lignin of wood by producing various hydrolytic enzymes, and therefore play a key ecological role in the nutrient cycle of forest ecosystems. In August 2016, a survey of wood-decaying fungi was carried out in Gutianshan National Nature Reserve, Zhejiang Province. Fungal species were identified using morphological characters and DNA sequence analysis. Both the species composition and biogeography were also analyzed. A total of 92 fungal species, 78 white rot species and 14 brown rot species, representing 45 genera were identified from the 158 samples collected. Among these fungi, tropically-contained families are better represented than cosmopolitan families. Of the 158 specimens, 97 (76 species) were collected from woody substrates with a diameter larger than 10 cm, 48 (38 species) from a dead branch with a diameter ranging from 2 cm to 10 cm, and 13 (12 species) from a dead twig with a diameter smaller than 2 cm. The abundance of fungal species differed conspicuously in different decaying classes of dead wood as well. Of 92 fungal species, seven species (nine specimens) were collected from woody substrate of decay class 1, 45 species (86 specimens) from wood of decay class 2, 29 species (49 specimens) from wood of decay class 3, and 14 species (14 specimens) from wood of decay class 4. This study indicates that the diameter and decay class of dead wood are important factors influencing the growth and species distribution of wood-decaying fungi.

Key words: subtropical forest, wood-decaying fungi, species composition, distribution

Fig. 1

Geographical distribution of wood-decaying fungi in Gutianshan National Nature Reserve. A, Asia-Europe; B, East Asia- North America; C, East Asia; D, Endemic to China; E, Cosmopolitan; F, Tropical-subtropical; G, North temperate."

Fig. 2

(a) Number of wood-decaying fungi on fallen wood of different diameters; (b) Number of wood-decaying fungi on wood with different rotting classes. DC1, Decaying class 1; DC2, Decaying class 2; DC3, Decaying class 3; DC4, Decaying class 4."

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