文献类型：期刊文献

英文题名：A Survey of the Potential Ectomycorrhizal Fungi Associated With Nursery Seedlings of Seven Species of Exotic Quercus in China

作者：Jin, Wei[1,2] Wang, Yuchen[1,2] Sun, Haijing[2] Yuan, Zhilin[1,2]

第一作者：Jin, Wei

通信作者：Yuan, ZL[1]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing, Peoples R China;[2]Chinese Acad Forestry, Inst Subtrop Forestry, Hangzhou, Peoples R China

年份：2021

卷号：40

期号：4

起止页码：357-370

外文期刊名：JOURNAL OF SUSTAINABLE FORESTRY

收录：;EI(收录号：20201908636601);Scopus(收录号：2-s2.0-85084298257);WOS:【SCI-EXPANDED(收录号:WOS:000573702000001)】；

基金：This work was supported by the Fundamental Research Funds for the Central Non-profit Research of Chinese Academy of Forestry under Grant [CAFYBB2017MA003].

语种：英文

外文关键词：Agaricales; boletales; symbiosis; Scleroderm

摘要：Seven species of Quercus have been introduced into China from the United States for their ecological and economic values. The beneficial association between Quercus trees and ectomycorrhizal (ECM) fungi is well recognized. However, the ECM fungal communities associated with these exotic oak trees grown in new environments are currently unknown. The aims of this work were to investigate the mycorrhizal status of nursery seedlings and identify the fungal communities in them. All Quercus tree species examined exhibited well-developed ECM roots. However, neither the morphology nor the color of the observed ECM types was distinctive, suggesting reduced ECM fungal diversity. The combined application of isolation and amplicon-based sequencing approaches revealed that the mycorrhizal taxa represented 5 orders and 12 genera in the Basidiomycota, but only the dominant genus Scleroderma (Boletales) was detected by both approaches. In addition, Scleroderma exhibited the lowest degree of host specificity, but relatively high interspecific genetic diversity. Isolates assigned to Sistotrema displayed taxonomic novelties based on sequence similarity searches against the GenBank database. Non-metric multidimensional scaling analysis showed a degree of differentiation of ECM communities among Quercus species. Our results provide insights into the identities of exotic Quercus-associated ECM fungi and will improve symbiosis-based seedling nursing technology.