首页> 外文期刊>Mycologia >Violaceomyces palustris gen. et sp nov and a new monotypic lineage, Violaceomycetales ord. nov in Ustilaginomycetes
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Violaceomyces palustris gen. et sp nov and a new monotypic lineage, Violaceomycetales ord. nov in Ustilaginomycetes

机译:紫堇菌et sp nov和一个新的单型谱系Violaceomycetales ord。乌斯拉霉菌

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摘要

Numerous strains of a novel yeast were isolated in Louisiana, USA, from the leaves of several palustrine plants, most frequently from the invasive aquatic ferns Salvinia minima and S. molesta. This fungus produced fast-growing colonies that were grayish violet to dark blue in culture and rapidly reproduced via production of copious ballistoconidia that germinated to form pseudohyphae. Colonies produced many two-celled yeasts that were distinctly hourglass-or peanut-shaped, and occurred singly or in chains. Phylogenetic analyses of translation elongation factor 1-alpha, beta-tubulin and the nuc rDNA regions encompassing 28S D1-D2 domains, 18S and the internal transcribed spacers 1 and 2, including 5.8S, indicate this fungus is a member of Ustilaginomycetes but holds an isolated position, distinct from the two currently recognized orders, Ustilaginales and Urocystales. Here we describe Violaceomycetales ord. nov., Violaceomycetaceae fam. nov. and Violaceomyces palustris gen. et sp. nov. for this unusual fungus.
机译:在美国路易斯安那州,从数种棕榈植物的叶子中分离了许多新型酵母菌株,其中最常见的是入侵性水生蕨类植物Salvinia minima和S. molesta。这种真菌产生快速生长的菌落,在培养中从灰紫色到深蓝色,并通过大量发芽形成假菌丝的快速核球菌快速繁殖。菌落产生了许多两细胞的酵母,它们明显是沙漏形或花生形的,单独或成链出现。系统发育分析翻译延伸因子1-alpha,β-微管蛋白和nuc rDNA区域包含28S D1-D2结构域,18S和内部转录的间隔区1和2,包括5.8S,表明该真菌是Ustilaginomycetes的成员,但拥有孤立的位置,与目前公认的两个订单(Ustilaginales和Urocystales)不同。在这里,我们描述Violaceomycetales ord。十一月,Violaceomycetaceae fam。十一月和紫草。等。十一月对于这种不寻常的真菌。

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