文献类型：期刊文献

英文题名：Environmental factors driving fungal distribution in freshwater lake sediments across the Headwater Region of the Yellow River, China

作者：Tian, Jianqing[1] Zhu, Dan[2,3,4] Wang, Jinzhi[5] Wu, Bing[1] Hussain, Muzammil[1] Liu, Xingzhong[1]

第一作者：Tian, Jianqing

通信作者：Liu, XZ[1]

机构：[1]Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing 100101, Peoples R China;[2]Chinese Acad Sci, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China;[3]Chinese Acad Sci, Biodivers Conservat Key Lab Sichuan Prov, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China;[4]Chinese Acad Sci, Zoige Peatland & Global Change Res Stn, Hongyuan 624400, Peoples R China;[5]Chinese Acad Forestry, Beijing Key Lab Wetland Serv & Restorat, Inst Wetland Res, Beijing 100091, Peoples R China

年份：2018

卷号：8

期号：1

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-85042937144);WOS:【SCI-EXPANDED(收录号:WOS:000426262400021)】；

基金：The authors thank Dr Mengchi Ho (Duke University) for his critical comments and clarifications of the language. This work was funded by The National Key Research and Development Program of China (No. 2016YFC0501802).

语种：英文

摘要：Dispersal limitation and environmental filtering are two primary processes involved in shaping microbial community structure. The pristine environmental and geographical relatively isolation of small lakes distributed in the Headwater Region of Yellow River (HRYR) offer a unique opportunity to test the relative roles of these two processes on fungal communities. Here, we investigated the fungal community in sediment samples from 10 lakes located in the HRYR using high-throughput sequencing. The results showed that the fungal community was dominated by Sordariomycetes, Leotiomycetes, Dothideomycetes, Pezizomycetes and Agaricomycetes. The results revealed that altitude, mean annual temperature, C/N ration, dissolve organic carbon and total nitrogen were the best predictors for shaping fungal community structure in these lakes. Significant spatial and environmental distance decay relationships in the fungal community were detected. The partial Mantel test indicated that the fungal community structure was significantly correlated with environmental distance but not with geographic distance. Overall, environmental filtering plays a more important role than dispersal limitation in fungal community structure at a local scale in such an pristine and isolated region.