Freshwater fungi comprises a highly diverse group of organisms occurring in freshwater habitats throughout the world.Dur-ing a survey of freshwater fungi on submerged wood in streams and lakes,a wide range of sexual a...Freshwater fungi comprises a highly diverse group of organisms occurring in freshwater habitats throughout the world.Dur-ing a survey of freshwater fungi on submerged wood in streams and lakes,a wide range of sexual and asexual species were collected mainly from karst regions in China and Thailand.Phylogenetic inferences using partial gene regions of LSU,ITS,SSU,TEF1α,and RPB2 sequences revealed that most of these fungi belonged to Dothideomycetes and Sordariomycetes and a few were related to Eurotiomycetes.Based on the morphology and multi-gene phylogeny,we introduce four new genera,viz.Aquabispora,Neocirrenalia,Ocellisimilis and Uvarisporella,and 47 new species,viz.Acrodictys chishuiensis,A.effusa,A.pyriformis,Actinocladium aquaticum,Annulatascus tratensis,Aquabispora setosa,Aqualignicola setosa,Aquimassario-sphaeria vermiformis,Ceratosphaeria flava,Chaetosphaeria polygonalis,Conlarium muriforme,Digitodesmium chishuiense,Ellisembia aquirostrata,Fuscosporella atrobrunnea,Halobyssothecium aquifusiforme,H.caohaiense,Hongkongmyces aquisetosus,Kirschsteiniothelia dushanensis,Monilochaetes alsophilae,Mycoenterolobium macrosporum,Myrmecridium splendidum,Neohelicascus griseoflavus,Neohelicomyces denticulatus,Neohelicosporium fluviatile,Neokalmusia aquib-runnea,Neomassariosphaeria aquimucosa,Neomyrmecridium naviculare,Neospadicoides biseptata,Ocellisimilis clavata,Ophioceras thailandense,Paragaeumannomyces aquaticus,Phialoturbella aquilunata,Pleurohelicosporium hyalinum,Pseudodactylaria denticulata,P.longidenticulata,P.uniseptata,Pseudohalonectria aurantiaca,Rhamphoriopsis aquimi-crospora,Setoseptoria bambusae,Shrungabeeja fluviatilis,Sporidesmium tratense,S.versicolor,Sporoschisma atroviride,Stanjehughesia aquatica,Thysanorea amniculi,Uvarisporella aquatica and Xylolentia aseptata,with an illustrated account,discussion of their taxonomic placement and comparison with morphological similar taxa.Seven new combinations are introduced,viz.Aquabispora grandispora(≡Boerlagiomyces grandisporus),A.websteri(≡Boerlagiomyces展开更多
Astrosphaeriella sensu lato is a common genus occurring on bamboo,palms and stout grasses.Species of Astrosphaeriella have been collected from various countries in tropical,subtropical or temperate regions.In Asia,spe...Astrosphaeriella sensu lato is a common genus occurring on bamboo,palms and stout grasses.Species of Astrosphaeriella have been collected from various countries in tropical,subtropical or temperate regions.In Asia,species have been collected in Brunei,China,Indonesia,Japan,Philippines and Vietnam.There have been several morphological studies on Astrosphaeriella,but molecular work and phylogenetic analyses are generally lacking.Taxa included in Astrosphaeriella were characterized in three main groups 1)typical Astrosphaeriella species(sensu stricto)having carbonaceous,erumpent,conical ascostromata 2)atypical Astrosphaeriella species(sensu lato)having immersed,coriaceous ascostromata with short to long papilla and 3)lophiostoma-like species having immersed ascostromata with slit-like openings.Some of the latter Astrosphaeriella species,having slit-like openings,have been transferred to Fissuroma and Rimora in Aigialaceae.In this study five type specimens of Astrosphaeriella were loaned from herbaria worldwide and re-examined and are re-described and illustrated.Collections of Astrosphaeriella were also made in Thailand and morphologically examined.Pure cultures were obtained from single spores and used in molecular studies.The asexual morph was induced on sterile bamboo pieces placed on water agar.Phylogenetic analyses of combined LSU,SSU and TEF1 sequence data of astrosphaeriella-like species using Bayesian,Maximum parsimony(MP)and Randomized Accelerated Maximum Likelihood(RAxML)analyses were carried out.Phylogenetic analyses show that species of Astrosphaeriella can be distinguished in at least three families.Species of Astrosphaeriella sensu stricto with erumpent,carbonaceous ascostromata,form a strongly supported clade with Pteridiospora species and a new family,Astrosphaeriellaceae,is introduced to accommodate these taxa.The genera are revised and Astrosphaeriella bambusae,A.neofusispora,A.neostellata,A.thailandica,A.thysanolaenae and Pteridiospora chiangraiensis are introduced as new species.Astrosphaeriella 展开更多
Anthostomella has long been regarded as a large,but polyphyletic genus in the family Xylariaceae,but species in this group generally lack phylogenetic data.In this study,14 anthostomella-like taxa collected from Italy...Anthostomella has long been regarded as a large,but polyphyletic genus in the family Xylariaceae,but species in this group generally lack phylogenetic data.In this study,14 anthostomella-like taxa collected from Italy,were studied using both morphology and molecular data.Single ascospore isolates were obtained and the asexual morphs of five taxa established.The phylogenetic relationships of the xylariaceous taxa were inferred using combined ITS,RPB2,βtubulin and LSU gene regions.We introduce new sequence data for 24 with included the 14 new anthostomella-like taxa.The subfamilies Hypoxyloideae and Xylarioideae within Xylariaceae were recognized as the two major clades with high bootstrap support.Within the two clades 21 subclades were resolved and the anthostomella-like taxa clustered in five of these subclades indicating that the genus is polyphyletic.Anthostomella sensu stricto comprised A.forlicesenica,A.formosa,A.helicofissa,A.rubicola and A.obesa.The A.formosa and A.rubicola collections morphologically closely resemble the type specimens and therefore we designate reference specimens.Three new species Anthostomella helicofissa,A.forlicesenica and A.obesa are also introduced.Four distinct lineages of anthostomella-like taxa correspondent to four new genera,Anthocanalis,Brunneiperidium,Lunatiannulus and Pyriformiascoma,which are also introduced,while one clustered in Astrocystis and is introduced as a new species.Keys to the new anthostomella-like genera and species examined in this study are provided.展开更多
基金Funding was provided by Ministry of Science and Technology of the People's Republic of China(Grant no.2014FY120100)Joint Fund of the National Natural Science Foundation of China and the Karst Science Research Center of Guizhou Province(Grant no.U1812401).
文摘Freshwater fungi comprises a highly diverse group of organisms occurring in freshwater habitats throughout the world.Dur-ing a survey of freshwater fungi on submerged wood in streams and lakes,a wide range of sexual and asexual species were collected mainly from karst regions in China and Thailand.Phylogenetic inferences using partial gene regions of LSU,ITS,SSU,TEF1α,and RPB2 sequences revealed that most of these fungi belonged to Dothideomycetes and Sordariomycetes and a few were related to Eurotiomycetes.Based on the morphology and multi-gene phylogeny,we introduce four new genera,viz.Aquabispora,Neocirrenalia,Ocellisimilis and Uvarisporella,and 47 new species,viz.Acrodictys chishuiensis,A.effusa,A.pyriformis,Actinocladium aquaticum,Annulatascus tratensis,Aquabispora setosa,Aqualignicola setosa,Aquimassario-sphaeria vermiformis,Ceratosphaeria flava,Chaetosphaeria polygonalis,Conlarium muriforme,Digitodesmium chishuiense,Ellisembia aquirostrata,Fuscosporella atrobrunnea,Halobyssothecium aquifusiforme,H.caohaiense,Hongkongmyces aquisetosus,Kirschsteiniothelia dushanensis,Monilochaetes alsophilae,Mycoenterolobium macrosporum,Myrmecridium splendidum,Neohelicascus griseoflavus,Neohelicomyces denticulatus,Neohelicosporium fluviatile,Neokalmusia aquib-runnea,Neomassariosphaeria aquimucosa,Neomyrmecridium naviculare,Neospadicoides biseptata,Ocellisimilis clavata,Ophioceras thailandense,Paragaeumannomyces aquaticus,Phialoturbella aquilunata,Pleurohelicosporium hyalinum,Pseudodactylaria denticulata,P.longidenticulata,P.uniseptata,Pseudohalonectria aurantiaca,Rhamphoriopsis aquimi-crospora,Setoseptoria bambusae,Shrungabeeja fluviatilis,Sporidesmium tratense,S.versicolor,Sporoschisma atroviride,Stanjehughesia aquatica,Thysanorea amniculi,Uvarisporella aquatica and Xylolentia aseptata,with an illustrated account,discussion of their taxonomic placement and comparison with morphological similar taxa.Seven new combinations are introduced,viz.Aquabispora grandispora(≡Boerlagiomyces grandisporus),A.websteri(≡Boerlagiomyces
文摘Astrosphaeriella sensu lato is a common genus occurring on bamboo,palms and stout grasses.Species of Astrosphaeriella have been collected from various countries in tropical,subtropical or temperate regions.In Asia,species have been collected in Brunei,China,Indonesia,Japan,Philippines and Vietnam.There have been several morphological studies on Astrosphaeriella,but molecular work and phylogenetic analyses are generally lacking.Taxa included in Astrosphaeriella were characterized in three main groups 1)typical Astrosphaeriella species(sensu stricto)having carbonaceous,erumpent,conical ascostromata 2)atypical Astrosphaeriella species(sensu lato)having immersed,coriaceous ascostromata with short to long papilla and 3)lophiostoma-like species having immersed ascostromata with slit-like openings.Some of the latter Astrosphaeriella species,having slit-like openings,have been transferred to Fissuroma and Rimora in Aigialaceae.In this study five type specimens of Astrosphaeriella were loaned from herbaria worldwide and re-examined and are re-described and illustrated.Collections of Astrosphaeriella were also made in Thailand and morphologically examined.Pure cultures were obtained from single spores and used in molecular studies.The asexual morph was induced on sterile bamboo pieces placed on water agar.Phylogenetic analyses of combined LSU,SSU and TEF1 sequence data of astrosphaeriella-like species using Bayesian,Maximum parsimony(MP)and Randomized Accelerated Maximum Likelihood(RAxML)analyses were carried out.Phylogenetic analyses show that species of Astrosphaeriella can be distinguished in at least three families.Species of Astrosphaeriella sensu stricto with erumpent,carbonaceous ascostromata,form a strongly supported clade with Pteridiospora species and a new family,Astrosphaeriellaceae,is introduced to accommodate these taxa.The genera are revised and Astrosphaeriella bambusae,A.neofusispora,A.neostellata,A.thailandica,A.thysanolaenae and Pteridiospora chiangraiensis are introduced as new species.Astrosphaeriella
基金The authors appreciate the financial support and postgraduate scholarship provided by State Key Laboratory of Mycology,Institute of Microbiology,Chinese Academy of Sciences,Beijing and the Mushroom Research Foundation,Chiang Mai,Thailand.The authors gratefully thank Dr Shaun Pennycook from Landcare Research University of Auckland,New Zealand for nomenclature advice on the proposed names.
文摘Anthostomella has long been regarded as a large,but polyphyletic genus in the family Xylariaceae,but species in this group generally lack phylogenetic data.In this study,14 anthostomella-like taxa collected from Italy,were studied using both morphology and molecular data.Single ascospore isolates were obtained and the asexual morphs of five taxa established.The phylogenetic relationships of the xylariaceous taxa were inferred using combined ITS,RPB2,βtubulin and LSU gene regions.We introduce new sequence data for 24 with included the 14 new anthostomella-like taxa.The subfamilies Hypoxyloideae and Xylarioideae within Xylariaceae were recognized as the two major clades with high bootstrap support.Within the two clades 21 subclades were resolved and the anthostomella-like taxa clustered in five of these subclades indicating that the genus is polyphyletic.Anthostomella sensu stricto comprised A.forlicesenica,A.formosa,A.helicofissa,A.rubicola and A.obesa.The A.formosa and A.rubicola collections morphologically closely resemble the type specimens and therefore we designate reference specimens.Three new species Anthostomella helicofissa,A.forlicesenica and A.obesa are also introduced.Four distinct lineages of anthostomella-like taxa correspondent to four new genera,Anthocanalis,Brunneiperidium,Lunatiannulus and Pyriformiascoma,which are also introduced,while one clustered in Astrocystis and is introduced as a new species.Keys to the new anthostomella-like genera and species examined in this study are provided.
基金Supported by the National Natural Science Foundation of China(31860006,31970021)Fungal Diversity Conservation and Utilization Innovation Team of Dali University(ZKLX2019213)。
基金Supported by the National Natural Science Foundation of China (31500017)Yunnan Young and Middle Aged Academic and Technical Leaders Reserve Talents (2018HB008)。
