一个耐热的戴氏霉新种(英文)

A new thermotolerant species of Taifanglania

从海南三亚的河泥中分离获得戴氏霉属一新种,即小孢戴氏霉Taifanglania parvispora。它与相近种的主要区别是菌丝段有时稍膨大,瓶梗短和分生孢子小且呈梨形至倒卵形。基于戴氏霉属、腐质霉属、单瓶霉属和瓶霉属中一些种的ITS1-5.8S-ITS2 r DNA序列构建了系统发育树,结果表明新种与戴氏霉属亲缘关系较近,聚在一个分支中,并在该分支中独立为一亚分支。形态和分子特征分析表明小孢戴氏霉可以作为戴氏霉属中的一个新分类单元。

Taifanglania parvispora sp. nov. was isolated from the river mud of Sanya, Hainan Province, China. This new species was distinguished from other related taxa by its inflated hyphal bodies, short phialides, small, and pyriform to obovate conidia. The phylogenic tree was constructed based on the ITS1-5.8S-ITS2 rDNA sequences of some species of Taifanglania, Humicola, Phialemonium and Phialophora and the results showed that the new species was clustered with Taifanglania spp. in a clade, and became a separated subclade in the Taifanglania clade. Morphological and molecular analysis indicated that it was reasonable thatT. parvispora was proposed as a new taxon in the genus Taifanglania.