中国丝膜菌属李玉丝膜菌组一新种：李玉丝膜菌（英文）_谢孟乐.pdf

Research paper 研究论文 22 January 2023,42(1):244-251 菌物学报 Mycosystema ISSN1672-6472 CN11-5180/Q Doi:10.13346/j.mycosystema.220421 This work was supported by the Key Project on Research and Development of Ministry of Science and Technology(2018YFE0107800),the China Agriculture Research System(CARS20),the National Natural Science Foundation of China(31270072),and the Special Projects for Basic Work of Science and Technology of Ministry of Science and Technology(2013FY110400).*Corresponding authors.E-mail:; ORCID:XIE Mengle(0000-0002-7798-7048)Received:2022-10-19;Accepted:2022-10-31 菌物学报 Copyright 2023 Institute of Microbiology,CAS.All rights reserved.| Http:/journals- Tel:+86-10-64807521 244 魏铁铮 中国科学院微生物研究所真菌学国家重点实验室副研究员。长期从事大型经济真菌的系统学、生物多样性及保护的研究。中国丝膜菌属李玉丝膜菌组一新种：李玉丝膜菌 谢孟乐1,2，李熠2，王科3，冀瑞卿1*，魏铁铮3*1 吉林农业大学 食药用菌教育部工程研究中心，吉林 长春 130118 2 扬州大学食品科学与工程学院，江苏 扬州 225127 3 中国科学院微生物研究所 真菌学重点实验室，北京 100101 摘 要：本研究报道了丝膜菌属的一个新种：李玉丝膜菌，该种采自中国吉林省蒙古栎林中，其主要特征为担子体小型、幼时具蓝紫色调，菌盖强水浸状、具条纹，担孢子近球形。该种在系统发育树中形成一个独立的分支，与斑丝膜菌组形成姐妹关系，但遗传关系较远，属于新组李玉丝膜菌组。本文对新分类单元进行了详细描述，并对其系统发育上相近的物种进行了比较。关键词：丝膜菌科；新分类单元；系统发育；分类 引用本文 谢孟乐，李熠，王科，冀瑞卿，魏铁铮，2023.中国丝膜菌属李玉丝膜菌组一新种：李玉丝膜菌.菌物学报，42(1):244-251Xie ML,Li Y,Wang K,Ji RQ,Wei TZ,2023.Cortinarius liyui sp.nov.,a new species of Cortinarius sect.Liyuorum sect.nov.from China.Mycosystema,42(1):244-251 Research paper 22 January 2023,42(1):244-251 Mycosystema ISSN1672-6472 CN11-5180/Q 菌物学报 245Cortinarius liyui sp.nov.,a new species of Cortinarius sect.Liyuorum sect.nov.from China XIE Mengle1,2,LI Yi 2,WANG Ke3,JI Ruiqing1*,WEI Tiezheng3*1 Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi,Jilin Agricultural University,Changchun 130118,Jilin,China 2 College of Food Science and Engineering,Yangzhou University,Yangzhou 225127,Jiangsu,China 3 State Key Laboratory of Mycology,Institute of Microbiology,Chinese Academy of Sciences,Beijing 100101,China Abstract:A telamonioid species new to science,Cortinarius liyui,found from Jilin Province,Northeast China is presented based on morphological characteristics and molecular phylogenetic analysis.The species is characterized by its small and violet tinged basidiomata,hygrophanous and striate pileus,and subglobose to broadly ellipsoid basidiospores.The phylogeny inferred from the ITS and 28S sequences demonstrates that C.liyui belongs to Cortinarius sect.Liyuorum,a section new to science and probably related to sect.Spilomei.Detailed descriptions of the new taxon and a comparison with its phylogenetically related taxa are provided.Keywords:Cortinariaceae;new taxa;phylogeny;taxonomy INTRODUCTION Cortinarius(Pers.)Gray is an important ectomycorrhizal genus with agaricoid to sequestrate basidiomata,rust brown basidiospore deposit and verrucose basidiospores(Peintner et al.2001;Frslev et al.2006;Bhunjun et al.2022).Many Cortinarius species have been used as indicator species for valuable natural environments in Europe due to their narrow ecological preferences and sensitivity to environmental change(Vesterholt 1991;Hallingbck&Aronsson 1998).Many Cortinarius species are edible mushrooms,for example C.armillatus(Fr.)Fr.,C.emodensis Berk.and C.sinensis L.H.Sun,T.Z.Wei&Y.J.Yao(Dai et al.2010;Li et al.2015;Xie 2018).Some species,for example C.collinitus(Pers.:Fr.)Fr.and C.violaceus(L.)Gray,with potential value of anti-tumor and antioxidant(Dai&Yang 2008;Dai et al.2009;Li&Bao 2020).In addition,several species are notoriously poisonous,e.g.C.orellanus Fr.and C.speciosissimus Khner&Romagn(Bau et al.2014;Wu et al.2019).The latest phylogenomic study by Liimatainen et al.(2022)showed that the genus Cortinarius s.l.could be divided into ten genera.The recent research based on the ITS region in GenBank showed the species of Cortinarius s.s.maybe over 5 000 in the world,including more than one thousand undescribed species(Bhunjun et al.2022).In China,309 Cortinarius s.l.taxa have been reported,including nineteen taxa that originally described from China(Zang 1987;Yang 1992;Wei&Yao 2013;Xie 2018;Xie et al.2019,2020,2021a,2021b,2022;Yuan et al.2020;Luo&Bau 2021;Wang et al.2022).In this study,samples of one telamonioid species,C.liyui,were collected and described as a new species from Jilin Province,China.The morphological characters and phylogenetic analysis supported the recognition of this species within Cortinarius and confirmed this species belongs to a novel section Liyuorum.1 MATERIALS AND METHODS 1.1 Specimens and morphological description Specimens were collected in Yanji,Jilin Province.Fresh fruit bodies were photographed in the field,and dried in an oven at 50 C.Specimens have been deposited in the Herbarium of Mycology,Jilin Agricultural University(HMJAU),XIE Mengle et al./Cortinarius liyui sp.nov.,a new species of Cortinarius sect.Liyuorum sect.nov.from China 研究论文 菌物学报 246 Changchun,China.The macroscopic characteristics were recorded from the fresh basidiomata.Microscopic characteristics were examined and described in 5%KOH,Congo Red or Melzers reagent un