The order Meliolales comprises the families Armatellaceae and Meliolaceae.These are black mildews that grow on the surface of host plants,often regarded as minor plant pathogens.In this study,types or specimens of 17 ...The order Meliolales comprises the families Armatellaceae and Meliolaceae.These are black mildews that grow on the surface of host plants,often regarded as minor plant pathogens.In this study,types or specimens of 17 genera of Armatellaceae and Meliolaceae were borrowed from herbaria and re-examined.Armatella is accepted in Armatellaceae and Amazonia,Appendiculella,Asteridiella,Cryptomeliola,Endomeliola,Irenopsis and Meliola are accepted in the family Meliolaceae.Laeviomeliola is synonymized under Meliola.Ceratospermopsis,Ectendomeliola,Haraea,Hypasteridium,Leptascospora,Metasteridium,Ophiociliomyces,Ophioirenina,Ophiomeliola,Parasteridium,Pauahia,Pleomeliola,Pleomerium,Prataprajella,Ticomyces,Urupe and Xenostigme are excluded from Meliolaceae,and are treated as doubtful genera or placed in ascomycetes genera incertae sedis.The type species of each genus is re-described and illustrated with photomicrographs.Notes are provided and comparisons made.Two new species of Meliola and one new species of Irenopsis are also introduced with molecular data and we provide the most populated phylogenetic tree of Meliolomycetidae to date.Meliola thailandicum was found on Dimocarpus longan(Sapindales)and Acacia auriculiformis(Fabales)and confirmed to be the same species in the molecular analyses.This has important implications as the several hundred Meliola species are recognized based on host associations.Thus the same species being recorded from two unrelated hosts sheds doubt on Meliola species being host-specific.展开更多
Three new species of Meliolaceae,Appendiculella monsterae on Monstera deliciosa(Araceae),Asteridiella nitidae on Buddleja nitida(Scrophulariaceae),and Irenopsis chrysophylli on Chrysophyllum sp.(Sapotaceae),are descri...Three new species of Meliolaceae,Appendiculella monsterae on Monstera deliciosa(Araceae),Asteridiella nitidae on Buddleja nitida(Scrophulariaceae),and Irenopsis chrysophylli on Chrysophyllum sp.(Sapotaceae),are described based on material collected in Panama.Eighteen species of Meliolaceae are reported for the first time for Panama,which include four first records for the Americas,viz.Ast.formosensis,Meliola indica,and M.pisoniae,previously known only from Asia,and M.dissotidis hitherto known only from Africa.Six species of plants are cited as hosts for meliolaceous fungi for the first time.In a phylogenetic hypothesis based on 28S nrDNA sequences,the position of Meliolales,including Appendiculella,Asteridiella,Endomeliola,Irenopsis,and Meliola,is found to be basal to Sordariomycetidae,Hypocreomycetidae,and Xylariomycetidae within Sordariomycetes.The five genera of Meliolaceae form a strongly supported clade.We suggest adopting the concept of the subclass Meliolomycetidae.The monophyly of Asteridiella cannot be confirmed.A hypothetical close relationship between Asteridiella and Appendiculella is not supported,but Endomeliola appears closely related to a species of Asteridiella.Two Meliola species on the same host family are closely related.展开更多
本文根据Hansford(1946,1961)的分类系统和鉴定方法,采集鉴定和整理了福建省黑煤菌共4属43种;附丝壳属(Appendiculella)4种、小光壳炱属(Asteridiella)9种、隔孢炱属(Balladynastrum)1种以及小煤炱属(Meliola)29种,其中包括1个新种和13...本文根据Hansford(1946,1961)的分类系统和鉴定方法,采集鉴定和整理了福建省黑煤菌共4属43种;附丝壳属(Appendiculella)4种、小光壳炱属(Asteridiella)9种、隔孢炱属(Balladynastrum)1种以及小煤炱属(Meliola)29种,其中包括1个新种和13个在中国分布的新记录,新种是(?)木生小煤炱Meliola loropetalicola Y.X.Hu et Y.S.Ouyang,新种有中文、拉丁文描述和显微结构图。模式标本藏于广东省微生物研究所。展开更多
本文报道寄生在裸子植物上的三个小煤炱科新种。它们是(1)杉科上的杉木附丝壳Appendiculella cunninghamiae Y.X.Hu et B.Song,杉科是小煤炱科寄主的世界新记录;(2)罗汉松科上的竹柏生小煤炱Meliola podocarpicola Y.X.Hu et B.Song;(3...本文报道寄生在裸子植物上的三个小煤炱科新种。它们是(1)杉科上的杉木附丝壳Appendiculella cunninghamiae Y.X.Hu et B.Song,杉科是小煤炱科寄主的世界新记录;(2)罗汉松科上的竹柏生小煤炱Meliola podocarpicola Y.X.Hu et B.Song;(3)买麻藤科上的买麻藤生小煤炱Meliola gneticola Y.X.Hu。其形态特征有拉丁文和汉文描述,并附有形态图。模式标本存放在广东省微生物研究所。展开更多
文摘The order Meliolales comprises the families Armatellaceae and Meliolaceae.These are black mildews that grow on the surface of host plants,often regarded as minor plant pathogens.In this study,types or specimens of 17 genera of Armatellaceae and Meliolaceae were borrowed from herbaria and re-examined.Armatella is accepted in Armatellaceae and Amazonia,Appendiculella,Asteridiella,Cryptomeliola,Endomeliola,Irenopsis and Meliola are accepted in the family Meliolaceae.Laeviomeliola is synonymized under Meliola.Ceratospermopsis,Ectendomeliola,Haraea,Hypasteridium,Leptascospora,Metasteridium,Ophiociliomyces,Ophioirenina,Ophiomeliola,Parasteridium,Pauahia,Pleomeliola,Pleomerium,Prataprajella,Ticomyces,Urupe and Xenostigme are excluded from Meliolaceae,and are treated as doubtful genera or placed in ascomycetes genera incertae sedis.The type species of each genus is re-described and illustrated with photomicrographs.Notes are provided and comparisons made.Two new species of Meliola and one new species of Irenopsis are also introduced with molecular data and we provide the most populated phylogenetic tree of Meliolomycetidae to date.Meliola thailandicum was found on Dimocarpus longan(Sapindales)and Acacia auriculiformis(Fabales)and confirmed to be the same species in the molecular analyses.This has important implications as the several hundred Meliola species are recognized based on host associations.Thus the same species being recorded from two unrelated hosts sheds doubt on Meliola species being host-specific.
文摘Three new species of Meliolaceae,Appendiculella monsterae on Monstera deliciosa(Araceae),Asteridiella nitidae on Buddleja nitida(Scrophulariaceae),and Irenopsis chrysophylli on Chrysophyllum sp.(Sapotaceae),are described based on material collected in Panama.Eighteen species of Meliolaceae are reported for the first time for Panama,which include four first records for the Americas,viz.Ast.formosensis,Meliola indica,and M.pisoniae,previously known only from Asia,and M.dissotidis hitherto known only from Africa.Six species of plants are cited as hosts for meliolaceous fungi for the first time.In a phylogenetic hypothesis based on 28S nrDNA sequences,the position of Meliolales,including Appendiculella,Asteridiella,Endomeliola,Irenopsis,and Meliola,is found to be basal to Sordariomycetidae,Hypocreomycetidae,and Xylariomycetidae within Sordariomycetes.The five genera of Meliolaceae form a strongly supported clade.We suggest adopting the concept of the subclass Meliolomycetidae.The monophyly of Asteridiella cannot be confirmed.A hypothetical close relationship between Asteridiella and Appendiculella is not supported,but Endomeliola appears closely related to a species of Asteridiella.Two Meliola species on the same host family are closely related.
文摘本文根据Hansford(1946,1961)的分类系统和鉴定方法,采集鉴定和整理了福建省黑煤菌共4属43种;附丝壳属(Appendiculella)4种、小光壳炱属(Asteridiella)9种、隔孢炱属(Balladynastrum)1种以及小煤炱属(Meliola)29种,其中包括1个新种和13个在中国分布的新记录,新种是(?)木生小煤炱Meliola loropetalicola Y.X.Hu et Y.S.Ouyang,新种有中文、拉丁文描述和显微结构图。模式标本藏于广东省微生物研究所。
基金国家自然科学基金资助项目no.39899400 39870044+3 种基金 the Natural Science Foundation of Guandong (no. 990016 2000205) the Foundation of Guangdong Institute of Microbiology and the Guangdon~~
