文献类型：期刊文献

英文题名：The effects of different human disturbance regimes on root fungal diversity of Rhododendron ovatum in subtropical forests of China

作者：Zhang, Yanhua[1];Ni, Jian[1];Tang, Fangping[1];Jiang, Lifen[2];Guo, Tianrong[1];Pei, Kequan[3];Sun, Lifu[1,2];Liang, Yu[3]

机构：[1]Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Zhejiang, Peoples R China;[2]Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA;[3]Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China

年份：2017

卷号：47

期号：5

起止页码：659

外文期刊名：CANADIAN JOURNAL OF FOREST RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000400180600009)、、WOS

基金：We thank Xiaojuan Liu for providing climatic information for the sampling sites and Yefei Jin and Li Han for preparing the material and experiments. This study was supported by the National Natural Science Foundation of China (31170469 and 31170495) and Technology Division of Shaoxing (2013B70040). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

外文关键词：Rhododendron ovatum; fungal diversity; human disturbance; subtropical forests; land use

外文摘要：Ericoid mycorrhizal associations are a symbiotic relationship between soil fungi and ericaceous plants. Diversity of fungi associated with hair roots of ericaceous plants may vary as a result of frequent disturbances by human activities. The fungal diversity and communities associated with hair roots of Rhododendron ovatum were investigated along a human disturbance gradient in subtropical forests of China. Nine hundred fungal operational taxonomic units were determined by high-throughput sequencing, including different phyla such as Ascomycota, Basidiomycota, Zygomycota, Chytridiomycota, and Glomeromycota. The dominant phylum in Cunninghamia lanceolata plantations and old-growth forest was Ascomycota, while Basidiomycota was the dominant phylum in secondary forests. The indicator species analyses showed that more pathogenic indicator fungi appeared in the disturbed forests, whereas more putative ericoid mycorrhizal fungi existed in the old-growth forests. Principal component analysis also showed that the fungal communities in the hair roots of R. ovatum were distinct between natural forests and plantations, suggesting that the fungal communities associated with hair roots of R. ovatum after logging were resilient and could recover to predisturbance status. The results of envfit analysis showed that performance of host plants rather than accompanying plant community and soil parameters of plots was the key determinant of the root-associated fungal community of R. ovatum.