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首页> 外文期刊>Mycologia >Imaia, a new truffle genus to accommodate Terfezia gigantea
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Imaia, a new truffle genus to accommodate Terfezia gigantea

机译：伊马亚（Imaia），一种新的松露菌属，可容纳特尔菲西亚巨型

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摘要

Originally described from Japan by Sanshi Imai in 1933, the hypogeous ascomycete Terfezia gigantea was subsequently discovered in the Appalachian Mountains of the USA. Morphological, electron microscopic, and phylogenetic studies of specimens collected in both regions revealed that, despite this huge geographic disjunction, (1) the Japanese and Appalachian specimens are remarkably similar both in morphology and the sampled rDNA sequences, (2) the species unambiguously Falls into the Morchellaceae and is separated from the genus Terfezia. in the Pezizaceae, (3) its spores are much larger than those of Terfezia spp. and are enclosed in a Unique, electron-semitransparent, amorphous epispore that appears to be permeated with minute, meandering strands or canals. In addition to the molecular phylogenetic results, the numerous nuclei in ascospores, the dome shaped, striate ascus septal plugs and the long cylindric Woronin bodies also strengthen the family assignment to the Marchellaceae. Moreover, the Species occurs in most., temperate forests as opposed to the xeric to arid habitats Of Other Terfezia, spp. We propose the new, monotypic genus Imaia to accommodate the species.
机译：伪劣的子囊大孢子虫（Tefezia gigantea）最初于1933年在日本描述，后来在美国的阿巴拉契亚山脉被发现。在这两个地区收集的标本的形态，电子显微镜和系统发育研究表明，尽管地理差异很大，但（1）日本和阿巴拉契亚标本在形态和采样的rDNA序列上都非常相似，（2）该物种明确地落下进入羊肚菌科，并与特非西亚属分开。在Pezizaceae中，（3）的孢子比Terfezia spp的大得多。并被包裹在一个独特的，电子半透明的，无定形的孢子囊中，该孢子囊似乎弥漫着细小的曲折链或运河。除了分子系统发育结果外，子囊孢子中无数的核，圆顶形的，条纹状的Ascus隔片和长圆柱形的Worronin体也加强了对马氏菌科的归属。此外，与其他特尔菲西亚（Serp。spp）的干湿生境相比，物种存在于大多数温带森林中。我们提出了新的，单型的伊马亚属以适应该物种。

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