Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Tarragona, Spain.
Mycologia. 2012 Nov-Dec;104(6):1456-65. doi: 10.3852/11-402. Epub 2012 Jun 8.
In a survey on the diversity of microfungi in Spanish soils, two new species of Acremonium were found. Both species were characterized as having more or less erect, mostly branched conidiophores bearing whorls of acicular phialides. In addition, one of these species, Acremonium asperulatum, produced abundant chlamydospores and globose rough-walled conidia. The other species, Acremonium variecolor, produced a brownish diffusible pigment and smooth-walled, subglobose conidia with apiculate base; sessile conidia inserted directly on vegetative hyphae also were present. The analysis of the sequences of the ITS region, the D1/D2 domains of the 28S rRNA gene and a fragment of the actin gene revealed relationships of both species with members of the Bionectriaceae (Hypocreales). Genetic differences were observed with morphologically similar species.
在一项关于西班牙土壤中微型真菌多样性的调查中，发现了两种新的节丛孢属（Acremonium）物种。这两个物种的特征是具有或多或少直立的、大多分枝的分生孢子梗，其上着生轮生的针状产孢细胞。此外，其中一个物种，节丛孢属 Asperulatum，产生丰富的厚壁厚垣孢子和球形粗糙壁分生孢子。另一个物种，节丛孢属 Variicolor，产生棕色可扩散色素和光滑壁、近球形分生孢子，基部长有刺状；还有着生在营养菌丝上的无梗分生孢子。对 ITS 区、28S rRNA 基因的 D1/D2 区和肌动蛋白基因片段的序列分析表明，这两个物种与小丛壳科（Hypocreales）的成员有关。与形态相似的物种观察到遗传差异。
