Naming and outline of Dothideomycetes-2014 including proposals for the protection or suppression of generic names

Article 59.1,of the International Code of Nomenclature for Algae,Fungi,and Plants(ICN;Melbourne Code),which addresses the nomenclature of pleomorphic fungi,became effective from 30 July 2011.Since that date,each fungal species can have one nomenclaturally correct name in a particular classification.All other previously used names for this species will be considered as synonyms.The older generic epithet takes priority over the younger name.Any widely used younger names proposed for use,must comply with Art.57.2 and their usage should be approved by the Nomenclature Committee for Fungi(NCF).In this paper,we list all genera currently accepted by us in Dothideomycetes(belonging to 23 orders and 110 families),including pleomorphic and nonpleomorphic genera.In the case of pleomorphic genera,we follow the rulings of the current ICN and propose single generic names for future usage.The taxonomic placements of 1261 genera are listed as an outline.Protected names and suppressed names for 34 pleomorphic genera are listed separately.Notes and justifications are provided for possible proposed names after the list of genera.Notes are also provided on recent advances in our understanding of asexual and sexual morph linkages in Dothideomycetes.A phylogenetic tree based on four gene analyses supported 23 orders and 75 families,while 35 families still lack molecular data.

Phylogenetic and ecological reevaluation of the order Onygenales

The order Onygenales is classified in the class Eurotiomycetes of the subphylum Pezizomycotina.Families in this order have classically been isolated from soil and dung,and two lineages contain causative agents of superficial,cutaneous and systemic infections in mammals.The ecology and habitat choices of the species are driven mainly by the keratin and cellulose degradation abilities.The present study aimed to investigate whether the ecological trends of the members of Onygenales can be interpreted in an evolutionary sense,linking phylogenetic parameters with habitat preferences,to achieve polyphasic definitions of the main taxonomic groups.Evolutionary processes were estimated by multiple gene genealogies and divergence time analysis.Previously described families,namely,Arthrodermataceae,Ajellomycetaceae,Ascosphaeraceae,Eremascaceae,Gymnoascaceae,Onygenaceae and Spiromastigoidaceae,were accepted in Onygenales,and two new families,Malbrancheaceae and Neogymnomycetaceae,were introduced.A number of species could not be assigned to any of the defined families.Our study provides a revised overview of the main lines of taxonomy of Onygenales,supported by multilocus analyses of ITS,LSU,TUB,TEF1,TEF3,RPB1,RPB2,and ribosomal protein 60S L10(L1)(RP60S)sequences,combined with available data on ecology,physiology,morphology,and genomics.

曲霉所致鼻面及鼻眶脑真菌病

鼻面及鼻眶脑真菌病(rhinofacial and rhino-orbital-cerebral mycosis,ROCM)是一种病死率高的暴发性真菌感染疾病,主要由毛霉目、虫霉目、蛙粪霉目真菌引起。曲霉属真菌多引起真菌性鼻窦炎,如果侵入邻近的鼻、面、眼眶组织,真菌可能会延伸到颅底和/或神经系统,从而危及生命。由于该类感染早期临床表现缺乏特异性,误诊率可能较高;此外,对曲霉的有效抗真菌治疗与其他真菌的抗真菌治疗有很大的不同。本文对PubMed和中文文献数据库的相关文献进行了系统的Meta分析,全面总结了引起ROCM的相关曲霉菌种类、分布、危险因素、临床表现、诊断和治疗。

Proposed nomenclature for Pseudallescheria,Scedosporium and related genera

As a result of fundamental changes in the International Code of Nomenclature on the use of separate names for sexual and asexual stages of fungi,generic names of many groups should be reconsidered.Members of the ECMM/ISHAM working group on Pseudallescheria/Scedosporium infections herein advocate a novel nomenclature for genera and species in Pseudallescheria,Scedosporium and allied taxa.The generic names Parascedosporium,Lomentospora,Petriella,Petriellopsis,and Scedosporium are proposed for a lineage within Microascaceae with mostly Scedosporium anamorphs producing slimy,annellidic conidia.Considering that Scedosporium has priority over Pseudallescheria and that Scedosporium prolificans is phylogenetically distinct from the other Scedosporium species,some name changes are proposed.Pseudallescheria minutispora and Petriellidium desertorum are renamed as Scedosporium minutisporum and S.desertorum,respectively.Scedosporium prolificans is renamed as Lomentospora prolificans.

Chaetomium-like fungi causing opportunistic infections in humans:a possible role for extremotolerance

Members of the family Chaetomiaceae are ubiquitous ascosporulating fungi commonly,which reside in soil enriched with manure or cellulosic materials.Their role as human pathogens is largely ignored.However,the ability of some species to grow at high temperature enables them to play an important role as opportunistic pathogens.The family contains several genera and species that have never been reported to cause human infection.Hereby,three new species are described;two belong to the genus Subramaniula and one represents a Chaetomium species.Subramaniula asteroides was isolated from various sources including eye and skin infections as well as from the natural environment,and S.obscura was isolated from a toe infection.Chaetomium anamorphosum was isolated from a kidney transplant patient suffering from fungal peritonitis.All species described were previously misidentified as Papulaspora spp.due to the formation of cellular clumps or bulbil-like structures,which are characteristic of Papulaspora.The isolates failed to form sexual fruit bodies and ascospores remained absent,which is an unusual feature for the generally ascosporulating genera Chaetomium and Subramaniula;minute conidia from phialides were sometimes observed.