Metagenetics of fairy rings reveals complex and variable soil fungal communities  

作　　者：Siyu XU Ke DONG Sangseob LEE Matthew Chidozie OGWU Sainbileg UNDRAKHBOLD Dharmesh SINGH Dagvatseren ARIUNZAYA Orsoo ENKHMANDAL Laura A.SPENCE Anarmaa SHARKHUU Brenda B.CASPER Jonathan M.ADAMS Bazartseren BOLDGIV 

机构地区：[1]College of Biotechnology,Dalian Polytechnic University,Dalian 116034(China) [2]School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210008(China) [3]Department of Life Sciences,Kyonggi University,Suwon 443-760(Korea) [4]School of Bioscience and Veterinary Medicine,University of Camerino,Camerino 62032,Marche-Floristic Research Center of the Apennines,Gran Sasso and Monti della Laga National Park,San Colombo,Barisciano,L'Aquila 67021(Italy) [5]Laboratory of Ecological and Evolutionary Synthesis,Department of Biology,School of Arts and Sciences,National University of Mongolia,Ulaanbaatar 14201(Mongolia) [6]School of Biological Sciences,Seoul National University,1 Gwanak-ro,Gwanak-gu,Seoul 08826(Korea) [7]Sterling College,Sterling Drive,Craftsbury Common VT 05827(USA) [8]Department of Biology,University of Pennsylvania,Philadelphia PA 19104(USA)

出　　处：《Pedosphere》2023年第4期567-578,共12页土壤圈（英文版）

基　　金：supported by the PIRE Mongolia project funded by the U.S.National Science Foundation(OISE 0729786);supported by the Taylor Family-Asia Foundation Endowed Chair in Ecology and Conservation Biology,Mongolia;supported by a grant funded by the National Research Foundation of Korea(Nos.NRF-2018R1C1B6007755,NRF-2022R1F1A1066643)。

摘　　要：Although fairy rings are widely observed,little is known about the community processes associated with them.Here,we studied fairy rings in a natural grassland in northern Mongolia by sampling soils outside(future stage),directly under(present stage),and within(past stage)the rings,to represent different time stages during the expansion of fairy rings.Soil DNA was extracted for amplicon sequencing of the fungal ITS1 region.The present stage had reduced fungal diversity and different fungal communities toward the other stages.Most strikingly,there was an increase in the pathogenic fungus Gibberella baccata in the present stage of most rings and the saprotrophic fairy ring fungus Lepista luscina in several.However,no mushrooms of Lepista had been recorded from any of these rings during several years of observation.Known fairy ring fungi were not found in the present stage of every ring,even in some known rings to have previously displayed mushrooms of such species.It is possible that these fungi occurred or were more abundant at the unsampled leading edge of the ring.The increase in G.baccata is intriguing,but its importance,if any,is unclear.It is also unclear whether consortia of fungi or other microbes might be present in these rings.The absence or low abundance of the previously reported fairy ring fungal species suggests that their presence is transient,with rapid replacement by other fungi.No differences in soil parameters were found between the fairy ring stages,except for aluminum.There is a need for broader sampling,including analysis of non-fungal biota,to understand the functional diversity of fairy ring fungi and the consequences for plant communities.

关 键 词：community process functional guilds Gibberella baccata GRASSLAND ITS1 region network analysis soil fungus 

分 类 号：S154.3[农业科学—土壤学]