Editors-in-Chief:  Weilun Yin, Beijing Forestry University, China Klaus v. Gadow, University of Göttingen, Germany
Chen Yinglong, Gong Minqin, Wang Fengzhen, Zhang Meiqing, Chen Yu. Diversity and Colonization of Putative Mycorrhizal Fungi in Eucalyptus Plantations in Southern China[J]. Forest Ecosystems, 2000, 2(2): 34-42.
Citation: Chen Yinglong, Gong Minqin, Wang Fengzhen, Zhang Meiqing, Chen Yu. Diversity and Colonization of Putative Mycorrhizal Fungi in Eucalyptus Plantations in Southern China[J]. Forest Ecosystems, 2000, 2(2): 34-42.

Diversity and Colonization of Putative Mycorrhizal Fungi in Eucalyptus Plantations in Southern China

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  • Received Date: 05 May 2000
  • Based on a recent survey of putative mycorrhizal fungus diversity and distribution in 15 Eucalyptus
    plantations located in the South China,17 species representing 10 genera were collected and identified likely to be ectomycorrhizal(ECM) fungi according to the presence of fruiting bodies under Eucalyptus
    stands. Fungi in the genera Scleroderma
    , Laccaaria
    and Pisolithus
    were the most common species associated with Eucalyptus
    . Further confirmation of fungal comparability and persistence for exotic euca-lypts is required as these fungi are commonly associated with native pine forests in southern China. There was a higher diversity of arbuscular mycorrhizal (AM)fungi than ECM fungi in eucalypt plantations. About 28 species(including 7 unnamed isolates)),belonging to four genera(Glomus
    , Acaulospora
    , Sclerocystis
    and Scutellospora
    )were observed in soil samples. Among them, 18 species were identified to be Glomus fungi making up 64% of the total taxa collected. G. formosanum
    and G. geosporum
    were gener-ally the most prevalent species in most plantations in the survey. G. mosseae
    ,which was mainly restricted to alkaline soil in northern China,was also present in some soils from southern China. An additional survey on mycorrhizal colonization in roots of Eucalyptus
    over a range of plantation ages was undertaken from April to September. Roots from soil cores taken from 15 plantation sites were processed and examined under a microscope to assess mycorrhizal types and fungal colonization. Most root samples were associated with mycorrhizal fungi,either ECM or AM,or both. A general increase in root colonization with plant age by ectomycorrhizal fungi at the expense of AM fungal colonization indicated possible interaction between the two groups of fungi.
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