Taxonomy of the anaerobic gut fungi (Neocallimastigomycota): a review of classification criteria and description of current taxa
Taxonomy of the anaerobic gut fungi (Neocallimastigomycota): a review of classification criteria and description of current taxa
复制标题
DOI：
10.1099/ijsem.0.005322
复制
发表时间：
2022-01-01
影响因子：
2.8
通讯作者：
Elshahed, Mostafa S.
中科院分区：
文献类型：
--
作者：
Hanafy, Radwa A.;Dagar, Sumit S.;Elshahed, Mostafa S.
厌氧肠道真菌（Neocallimastigomycota）的成员居住在大型哺乳动物和一些爬行动物，有袋动物和鸟类食草动物的瘤胃和消化道。近十年来，新美鞭菌门（Neocallimastigomycota）的属和种的数量显著增加。然而，与新美鞭菌门菌株的分离和维护相关的困难使得解决属间和属内关系的比较研究变得非常复杂。在这里，我们提供了一个更新的大纲新美鞭菌分类。我们批判性地评估各种形态，显微镜和系统发育特征以前和目前使用的新美鞭菌门分类，并提供了一个更新的关键快速表征的所有属。然后，我们综合分类描述手稿，以前的比较工作和分子序列数据的数据，提出了一个更新的列表Neocallimastigomycota属和种，重点是解决关系，并确定最近和历史菌株之间的同义关系。我们从已发表的手稿中补充了作者收藏的菌株的信息和插图。已知20属36种，但由于缺乏培养和鉴定资料，在盲囊菌属（Caecomyces）、梨囊菌属（Piromyces）、厌氧菌属（Anaeromyces）和环孢菌属（Cyllamyces）中有10种的地位尚不确定。菌株，缺乏序列数据，和/或可用的显微镜和表型数据不足。在新美鞭菌属和盲囊菌属中发现了6例同义现象，在梨囊菌属中发现了2例明显的分类错误。
Members of the anaerobic gut fungi (Neocallimastigomycota) reside in the rumen and alimentary tract of larger mammalian and some reptilian, marsupial and avian herbivores. The recent decade has witnessed a significant expansion in the number of described Neocallimastigomycota genera and species. However, the difficulties associated with the isolation and maintenance of Neocallimastigomycota strains has greatly complicated comparative studies to resolve inter- and intra-genus relationships. Here, we provide an updated outline of Neocallimastigomycota taxonomy. We critically evaluate various morphological, microscopic and phylogenetic traits previously and currently utilized in Neocallimastigomycota taxonomy, and provide an updated key for quick characterization of all genera. We then synthesize data from taxa description manuscripts, prior comparative efforts and molecular sequence data to present an updated list of Neocallimastigomycota genera and species, with an emphasis on resolving relationships and identifying synonymy between recent and historic strains. We supplement data from published manuscripts with information and illustrations from strains in the authors' collections. Twenty genera and 36 species are recognized, but the status of 10 species in the genera Caecomyces, Piromyces, Anaeromyces and Cyllamyces remains uncertain due to the unavailability of culture and conferre (cf.) strains, lack of sequence data, and/or inadequacy of available microscopic and phenotypic data. Six cases of synonymy are identified in the genera Neocallimastix and Caecomyces, and two names in the genus Piromyces are rejected based on apparent misclassification.