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中国淡水生新拟青霉属真菌的形态和分子特征。

Morphological and molecular characterisation of a new anamorphic genus Cheirosporium, from freshwater in China.

机构信息

Centre for Research in Fungal Diversity, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong;

出版信息

Persoonia. 2008 Jun;20:53-8. doi: 10.3767/003158508X314732. Epub 2008 Apr 23.

DOI:10.3767/003158508X314732
PMID:20467486
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2865349/
Abstract

Cheirosporium gen. nov. is characterised by the production of sporodochial conidiomata, semi-macronematous to macronematous conidiophores that possess several distinct sterile branches, and cheiroid, smooth-walled conidia with rhexolytic secession. The 28S rDNA and ITS rDNA operon of this taxon were amplified and sequenced. A BLAST search revealed low homology between Cheirosporium triseriale and existing sequences in public databases, supporting the hypothesis that the species is new to science. Phylogenetic analysis showed that C. triseriale groups with Dictyosporium and allied species, and nests within the Pleosporales (Dothideomycetes, Ascomycota). Cheirosporium is morphologically distinct from the cheirosporous genera Cheiromyces, Cheiromycina, Dictyosporium, Digitomyces, Digitodesmium and Pseudodictyosporium and these differences are discussed.

摘要

射腔菌属（Cheirosporium gen. nov.）的特征是产生孢子梗分生孢子器，半大型至大型分生孢子梗具有几个明显的不育分枝，以及喙状、光滑壁的分生孢子，具有横裂式分离。该分类群的 28S rDNA 和 ITS rDNA 操纵子被扩增和测序。BLAST 搜索显示，三列射腔菌（Cheirosporium triseriale）与公共数据库中现有的序列之间同源性较低，支持该物种是新发现的科学假设。系统发育分析表明，C. triseriale 与 Dictyosporium 和相关物种聚为一组，并且嵌套在 Pleosporales（Dothideomycetes，子囊菌门）中。Cheirosporium 在形态上与喙状的 Cheiromyces、Cheiromycina、Dictyosporium、Digitomyces、Digitodesmium 和 Pseudodictyosporium 属不同，并且讨论了这些差异。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/56990ead1af0/per-20-53-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/11c87a84cc83/per-20-53-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/f5b704333269/per-20-53-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/56990ead1af0/per-20-53-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/11c87a84cc83/per-20-53-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/f5b704333269/per-20-53-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99f4/2865349/56990ead1af0/per-20-53-g003.jpg

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