Kyushu Research Center, Forestry and Forest Products Research Institute, Kurokami, Kumamoto City, Chuo-ku, Kumamoto 860-0862, Japan.
Mycologist Circle of Japan, Fujisawa City, Kanagawa, Japan.
Mycologia. 2021 May-Jun;113(3):653-663. doi: 10.1080/00275514.2021.1875709. Epub 2021 Apr 9.
We describe two new Japanese truffle species, and , based on molecular and morphological analyses. Both species are clearly distinguishable from other species by the ocher tomentose mycelium covering the ascoma surfaces. has one-spored asci that each contain a large (68-97 × 51-80 µm), reddish-brown ascospore; these microscopic characters are similar to those of closely related Chinese species, , and forms one to four ascospores per ascus with a reddish-brown color similar to that of ascospores of and , although their spores are much larger than those of (27‒64 × 26‒55 µm). Molecular phylogenetic analyses based on ribosomal internal transcribed spacer and partial 28S nuc rDNA sequences support that both species are distinct within the Macrosporum group.
我们基于分子和形态分析描述了两种新的日本块菌物种， 和 。这两个物种的子囊果表面覆盖着赭色绒毛状菌丝，与其他 物种明显不同。 具有单孢子的子囊，每个子囊含有一个大的（68-97×51-80 µm）、红棕色的子囊孢子；这些微观特征与密切相关的中国物种相似， 和 ，每个子囊形成一个到四个红棕色的子囊孢子，类似于 和 的子囊孢子颜色，尽管它们的孢子比 （27-64×26-55 µm）的孢子大得多。基于核糖体内部转录间隔区和部分 28S rDNA 序列的分子系统发育分析支持这两个物种在 Macrosporum 组内是独特的。
