Department of Botany, Iranian Research Institute of Plant Protection, P.O. Box 1454, Tehran 19395, Iran.
Mycologia. 2011 Jul-Aug;103(4):863-82. doi: 10.3852/10-349. Epub 2011 Feb 9.
Twenty-one species of Chaetomium known from Iran were compared on the basis of morphological and molecular characters. Six new species are recognized, five isolated from cereals and one from nematode cysts. A combined sequence dataset of the ITS region, partial LSU rDNA, and β-tubulin gene sufficiently resolved five species groups of Chaetomium that are largely concordant with combined features of peridium structure, ascospore shape and germ pore position. Among the new species C. undulatulum is a close relative of C. globosum, C. rectangulare is close to C. elatum, C. interruptum and C. grande are close to C. megalocarpum, altogether forming the C. globosum species group. Chaetomium iranianum and C. truncatulum are members of the C. carinthiacum species group, characterized by spirally coiled ascomatal hairs and fusiform ascospores. A chrysosporium-like anamorph is newly described for C. acropullum.
从伊朗已知的 21 种嗜热子囊菌基于形态学和分子特征进行了比较。确认了六个新种，其中五个分离自谷物，一个分离自线虫胞囊。ITS 区、部分 LSU rDNA 和β-微管蛋白基因的联合序列数据集充分解决了嗜热子囊菌的五个种组，这些种组在很大程度上与囊壳结构、子囊孢子形状和萌发孔位置的综合特征一致。在新种中，C. undulatulum 与 C. globosum 密切相关，C. rectangulare 与 C. elatum 密切相关，C. interruptum 和 C. grande 与 C. megalocarpum 密切相关，共同构成 C. globosum 种组。C. iranianum 和 C. truncatulum 是 C. carinthiacum 种组的成员，其特征是螺旋状卷曲的子囊壳毛和梭形子囊孢子。一种类似于 Chrysosporium 的无性型被新描述为 C. acropullum。
