Abstract
Twenty-four soil samples of eight ecosystem-types around the Yellow River source area were investigated for the number and specific composition of soil dematiaceous hyphomycetes by dilution plate technique. And then the co-relationship between genus species of soil dematiaceous hyphomycetes and ecosystem-types was analyzed. The results show that the amount and species distribution of soil dematiaceous hyphomycetes had an obvious variability in different ecosystem-types, and that the dominant genus species varied in the eight ecosystem-types studied, with Cladosporium being the dominant genus in seven of the eight ecosystem-types except wetland. The index of species diversity varied in different ecosystem-types. The niche breadth analysis showed that Cladosporium had the highest niche breadth and distributed in all ecosystem-types, while the genera with a narrow niche breadth distributed only in a few ecosystem-types. The results of niche overlap index analysis indicated that Stachybotrys and Torula, Doratomyces and Scolecobasidium, Cladosporium and Chrysosporium had a higher niche overlap, whereas Arthrinium and Gliomastix, Phialophora and Doratomyces, Oidiodendron and Ulocladium had no niche overlap.
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Project (No. 30670014) supported by the National Natural Science Foundation of China
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Pan, Hq., Yu, Jf., Wu, Ym. et al. Diversity analysis of soil dematiaceous hyphomycetes from the Yellow River source area: I. J. Zhejiang Univ. Sci. B 9, 829–834 (2008). https://doi.org/10.1631/jzus.B0860002
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DOI: https://doi.org/10.1631/jzus.B0860002
Key words
- Yellow River source area
- Ecosystems
- Fungal species diversity
- Soil dematiaceous hyphomycetes
- Niche breadth
- Niche overlap