摘要
Freshwater Dothideomycetes are a highly diverse group of fungi,which are mostly saprobic in freshwater habitats world-wide.They are important decomposers of submerged woody debris and leaves in water.In this paper,we outline the genera of freshwater Dothideomycetes with notes and keys to species.Based on multigene analyses and morphology,we introduce nine new genera,viz.Aquimassariosphaeria,Aquatospora,Aquihelicascus,Fusiformiseptata,Neohelicascus,Neojahnula,Pseudojahnula,Purpureofaciens,Submersispora;33 new species,viz.Acrocalymma bipolare,Aquimassariosphaeria kun-mingensis,Aquatospora cylindrica,Aquihelicascus songkhlaensis,A.yunnanensis,Ascagilis submersa,A.thailandensis,Bambusicola aquatica,Caryospora submersa,Dictyocheirospora thailandica,Fusiformiseptata crocea,Helicosporium thai-landense,Hongkongmyces aquaticus,Lentistoma aquaticum,Lentithecium kunmingense,Lindgomyces aquaticus,Longipedi-cellata aquatica,Neohelicascus submersus,Neohelicomyces dehongensis,N.thailandicus,Neohelicosporium submersum,Nigrograna aquatica,Occultibambusa kunmingensis,Parabambusicola aquatica,Pseudoasteromassaria aquatica,Pseu-doastrosphaeriella aquatica,Pseudoxylomyces aquaticus,Purpureofaciens aquatica,Roussoella aquatica,Shrungabeeja aquatica,Submersispora variabilis,Tetraploa puzheheiensis,T.yunnanensis;16 new combinations,viz.Aquimassariospha-eria typhicola,Aquihelicascus thalassioideus,Ascagilis guttulaspora,A.queenslandica,A.seychellensis,A.sunyatsenii,Ernakulamia xishuangbannaensis,Neohelicascus aquaticus,N.chiangraiensis,N.egyptiacus,N.elaterascus,N.gallicus,N.unilocularis,N.uniseptatus,Neojahnula australiensis,Pseudojahnula potamophila;17 new geographical and habitat records,viz.Aliquandostipite khaoyaiensis,Aquastroma magniostiolata,Caryospora aquatica,C.quercus,Dendryphiella vinosa,Ernakulamia cochinensis,Fissuroma neoaggregatum,Helicotruncatum palmigenum,Jahnula rostrata,Neorous-soella bambusae,N.leucaenae,Occultibambusa pustula,Paramonodictys solitarius,Pleopunctum pseudoellipsoideum,Pseudocapulatispora longiappendiculata,Seriascoma didymosporum,Shrungabeeja vadirajensis and ten new collections from China and Thailand,viz.Amniculicola guttulata,Aquaphila albicans,Berkleasmium latisporum,Clohesyomyces aquati-cus,Dictyocheirospora rotunda,Flabellascoma fusiforme,Pseudoastrosphaeriella bambusae,Pseudoxylomyces elegans,Tubeufia aquatica and T.cylindrothecia.Dendryphiella phitsanulokensis and Tubeufia roseohelicospora are synonymized with D.vinosa and T.tectonae,respectively.Six orders,43 families and 145 genera which belong to freshwater Dothideo-mycetes are reviewed.Of these,46 genera occur exclusively in freshwater habitats.A world map illustrates the distribution of freshwater Dothideomycetes.
基金
the Sichuan Science and Technology Program(Grant No.2019YFH0175,Grant No.2018SZDZX0020)
the National Key R&D Program of China(Grant No.2019YFC1803504,Grant No.2016YFC0502204)
Huang Zhang would like to thank National Natural Science Foundation of China(Project ID:NSF 31500017 to Huang Zhang)
State Scholarship fund of China(201908530031)
Kevin D.Hyde thanks the Foreign Experts Bureau of Yunnan Province,Foreign Talents Program(2018
Grant No.YNZ2018002)
Thailand Research grant entitled Impact of climate change on fungal diversity and biogeography in the Greater Mekong Subregion(Grant No.RDG6130001)
Kevin D.Hyde also thanks Chiang Mai University for the award of Visiting Professor.Mingkwan Doilom would like to thank the 5th batch of Postdoctoral Orientation Training Personnel in Yunnan Province(Grant No.Y934283261)
the 64th batch of China Postdoctoral Science Foundation(Grant No.Y913082271)
Rungtiwa Phookamsak thanks CAS President’s International Fellowship Initiative(PIFI)for young staff(Grant No.Y9215811Q1)
the National Science Foundation of China(NSFC)project code 31850410489(Grant No.Y81I982211)
Chiang Mai University for financial support.Sinang Honsanan would like to thank National Natural Science Foundation of China for supporting the project Biodiversity,Taxonomy,Phylogeny,Evolution and Phytogeography of phytopathogens in Dothideomycetes from Southern China(Grant No.31950410548)for funding this research
Dhanushka Wanasinghe would like to thank CAS President’s International Fellowship Initiative(PIFI)for funding his postdoctoral research(number 2019PC0008)
the 64th batch of China Postdoctoral Science Founda-tion(Grant No.Y913083271)
the National Science Foundation of China and the Chinese Academy of Sciences(Grant No.41761144055)
Saranyaphat Boonmee would like to thank the Thailand Research Fund(No.TRG6180001)
Mae Fah Luang University Research Fund(No.631C15001)
the Japan Society for the Promotion of Sci-ence(JSPS,19K06802).
