Mortierella sugadairana , a new homothallic species related to the firstly described heterothallic species in the genus
Mortierella sugadairana , a new homothallic species related to the firstly described heterothallic species in the genus
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被孢霉(Mortierella sugadairana)，一种新的同宗菌种，与该属中首次描述的异宗菌种有亲缘关系。
DOI：
10.1016/j.myc.2017.10.004
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发表时间：
2018
期刊：
影响因子：
1.4
通讯作者：
Narisawa Kazuhiko
中科院分区：
文献类型：
--
作者：
Takashima Yusuke;Degawa Yousuke;Ohta Hiroyuki;Narisawa Kazuhiko
本文描述了一个新种--杉空被孢霉（Mortierella sugadairana），它是一种能形成同宗配合接合孢子的真菌，具有棒状的大胚柄和源于大胚柄的微胚柄。该种分离自日本凉爽地区，形态学和遗传学上与异宗配合种M. parvispora，是该属中首次报道的异宗配合种。该种的菌丝生长在30 ℃时受到限制，而两个M.小孢子菌可以生长。这可能表明该种和M.小孢子菌是一个共同的祖先，能够适应不同的气候，繁殖方式也有差异。© 2017日本真菌学会最近，包含被孢霉属和其他六个属的被孢霉亚门（Hoffmann，Voigt，& Kirk，2011）被限定为具有其他两个亚门，毛霉亚门和球囊霉亚门的毛霉门（Spatafora et al.，2016年）。被孢霉属（Mortierella）是毛霉门（Mucoromycota）中最大的属之一，在形态学上可分为9个组（Gams，1977）。然而，这种基于无性形态学的分类没有得到全面的系统发生学的支持，被孢霉属在系统发生学上被分成7个暂定类群，与被孢霉亚门中的4个属混合（Smith et al.，2013;瓦格纳等人，2013年）。
A new species, Mortierella sugadairana, is described for a fungus forming homothallic zygospores with a club-shaped macrosuspensor and a microsuspensor originating from the macrosuspensor. The species was isolated from cool regions in Japan and morphologically and phylogenetically close to a heterothallic species M. parvispora, which is the first species reported as a heterothallic species in the genus. Mycelial growth of the species was limited at 30 C, whereas two isolates of M. parvispora can grow. This may indicate that the species and M. parvispora adapted to different climates from a common ancestor involving differentiation of the manner of reproduction.© 2017 The Mycological Society of Japan. Published by Elsevier BV All rights reserved.Recently, the subphylum Mortierellomycotina containing Mortierella and six other genera (Hoffmann, Voigt, & Kirk, 2011) was circumscribed as phylum Mucoromycota with other two subphyla, Mucoromycotina and Glomeromycotina (Spatafora et al., 2016). Mortierella is one of the largest genus in Mucoromycota, and they were morphologically classified into nine sections (Gams, 1977). However, this asexual morphology-based classification was not supported by a comprehensive phylogeny, and the genus Mortierella was phylogenetically separated into seven tentative groups mixed with four genera in Mortierellomycotina (Smith et al., 2013; Wagner et al., 2013).