Lima Diogo X, Barreto R W, Lee Hyang B, Cordeiro Thalline R L, Souza Carlos A F de, Oliveira Rafael J V de, Santiago André L C M de A
Departamento de Micologia, Universidade Federal de Pernambuco, Av. Prof. Nelson Chaves, s/n, Recife, State of Pernambuco, 50670-420, Brazil.
Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, State of Minas Gerais, 36570-900, Brazil.
Curr Microbiol. 2020 Oct;77(10):2642-2649. doi: 10.1007/s00284-020-02038-8. Epub 2020 May 22.
The repeated observation of dog dung covered by abundant white cottony mycelium in a private garden in the city of Rio de Janeiro, state of Rio de Janeiro (Brazil) prompted an investigation to clarify the identity of the fungus involved. Three different species of mucoralean fungi (together with some ascomycete asexual morphs) were present. Two were identified as belonging to Mycotypha sp. and Thamnostylum sp., and the third belonged to Mucor sp. This publication deals with the full taxonomic elucidation of the latter. Based on morphological, physiological, and molecular data (ITS and LSU rDNA regions), it was recognized that this Mucor differed from all other species. It produces strongly sympodially circinate branched sporangiophores (some with up to four septa) with numerous swellings resembling abortive sporangia. It also has cylindrical, obovoid, pyriform, or ovoid columellae and its sporangiospores are mostly ellipsoid, although some are subglobose and others are irregular. Based on the evidence of the analyzed datasets, the new species Mucor merdophylus is hereby proposed.
在巴西里约热内卢州里约热内卢市的一个私人花园里，人们反复观察到狗粪上覆盖着大量白色棉絮状菌丝体，这促使人们展开调查以弄清相关真菌的身份。发现了三种不同的毛霉目真菌（以及一些子囊菌无性型）。其中两种被鉴定为属于 Mycotypha 属和 Thamnostylum 属，第三种属于毛霉属。本出版物阐述了对后者的完整分类学鉴定。基于形态学、生理学和分子数据（ITS 和 LSU rDNA 区域），发现这种毛霉与所有其他物种不同。它产生强烈的合轴环状分枝的孢子囊梗（有些有多达四个隔膜），有许多类似败育孢子囊的肿胀部分。它还有圆柱形、倒卵形、梨形或卵形的囊轴，其孢子囊孢子大多为椭圆形，不过有些是近球形，还有些是不规则形。基于分析数据集的证据，特此提出新物种毛霉粪生毛霉。
