Polycephalomycetaceae,a new family of clavicipitoid fungi segregates from Ophiocordycipitaceae  

作　　者：Yuan‑Pin Xiao Yuan Bing Wang Kevin D.Hyde Gentekaki Eleni Jing‑zu Sun Yu Yang Juan Meng Hong Yu Ting‑Chi Wen 

机构地区：[1]State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering,Key Laboratory of Green Pesticide and Agricultural Bioengineering,Ministry of Education,Guizhou University,Guiyang 550025,China [2]The Engineering Research Center of Southwest Bio‑Pharmaceutical Resources,Ministry of Education,Guizhou University,Guiyang 550025,Guizhou,China [3]Center of Excellence in Fungal Research,Mae Fah Luang University,Chiang Rai 57100,Thailand [4]School of Science,Mae Fah Luang University,Chiang Rai 57100,Thailand [5]CAS Key Laboratory for Plant Diversity and Biogeography of East Asia,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [6]Yunnan Key Laboratory for Fungal Diversity and Green Development,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [7]Yunnan Herbal Laboratory,School of Ecology and Environmental Science,Yunnan University,Kunming 650091,China [8]Innovative Institute of Plant Health,Zhongkai University of Agriculture and Engineering,Haizhu District,Guangzhou 510225,China [9]State Key Laboratory of Mycology,Institute of Microbiology,Chinese Academy of Sciences,Beijing 100101,China [10]The Mushroom Research Centre,Guizhou University,Guiyang 550025,China [11]School of Pharmaceutical Engineering,Guizhou Institute of Technology,Guiyang 550003,Guizhou,China

出　　处：《Fungal Diversity》2023年第3期1-76,共76页真菌多样性（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.31760014,31760011,32060007,32072645);the Science and Technology Foundation of Guizhou Province(No.[2019]2451-3);Macrofungi diversity research from the Lancang-Mekong Watershed and Surrounding areas(Grant No.DBG6280009);the Science and Technology Planning Project of Yunnan Province(No.202207AB110016).

摘　　要：Clavicipitoid fungi comprise three families,namely Clavicipitaceae,Cordycipitaceae,and Ophiocordycipitaceae.They are found worldwide and are specialized pathogens of invertebrate,plant and fungal hosts.Over the last decade,morphology-and phylogeny-based studies on clavicipitoid fungi have increased.The latter have revealed that Polycephalomyces,Perennicordyceps and Pleurocordyceps consistently cluster together.These genera are currently considered as members of Ophiocordycipitaceae.Nonetheless,information with regard to their diversity and ecology remains sparse.To fill this gap,we collected 29 fresh specimens from insect and fungal substrates from tropical and subtropical evergreen forests in Thailand and southwestern China.We performed detailed morphological analyses and constructed photoplates for all isolated fungi.We used extensive taxon sampling and a dataset comprising internal transcribed spacer gene region(ITS),small subunit ribosomal RNA gene region(SSU),large subunit rRNA gene region(LSU),translation elongation factor 1-alpha gene region(TEF-1α),RNA polymerase II largest subunit gene region(RPB1)and RNA polymerase II second largest subunit(RPB2)to infer order-,family and genus-level phylogenetic trees.Based on these biphasic analyses,we segregate Polycephalomyces,Perennicordyceps,and Pleurocordyceps from Ophiocordycipitaceae and introduce the new family Polycephalomycetaceae to accomodate these three genera.The majority of species in this family have a vast range of insect and fungal hosts.The sexual morph of Polycephalomycetaceae has stromatic ascomata,long stipes,thick peridium,and cylindrical secondary spores.The asexual morph is characterized by colonies on the host surface or synnemata with stipes on the host,one or two types of phialides,and cylindrical to fusiform conidia.We expand the number of taxa in the new family by introducing seven new species(Polycephalomyces albiramus,Perennicordyceps lutea,Pleurocordyceps parvicapitata,Pleurocordyceps lanceolatus,Pleurocordyceps nutansis,Pleurocordyce

关 键 词：8 new taxa Ophiocordyceps Polycephalomyces HYPOCREALES Clavicipitoid fungi TAXONOMY New family MORPHOLOGY PHYLOGENY 

分 类 号：Q949[生物学—植物学]