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首页> 外文期刊>Mycologia >An enigmatic fossil fungus from the 410 Ma Rhynie chert that resembles Macrochytrium (Chytridiomycota) and Blastocladiella (Blastocladiomycota)
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An enigmatic fossil fungus from the 410 Ma Rhynie chert that resembles Macrochytrium (Chytridiomycota) and Blastocladiella (Blastocladiomycota)

机译：410 Ma Rhynie石的一种神秘化石真菌，类似于Macrochytrium（Chytridiomycota）和Blastocladiella（Blastocladiomycota）

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摘要

Litter layers in the Lower Devonian (similar to 410 Ma) Rhynie chert were inhabited by a wide variety of saprotrophic fungi, however, only a few of these organisms have been described faunally. A new microfungus, Trewinomyces annulifer gen. et sp. nov., occurs as tufts on decaying land plant axes from the Rhynie chert. The fungus consists of an intramatrical rhizoidal system and an erect extramatrical hypha (stalk) that bears a single, terminal sporangium. One or two successive rings often are present in the stalk immediately below the sporangium base. Overall morphology of T. annulifer resembles the extant genera Macrochytrium (Chytridiomycota) and Blastocladiella (Blastocladiomycota). However, the rhizoids are septate or pseudoseptate, a feature not known in extant zoosporic fungi, and thus render the systematic affinities of T. annulifer unresolved. Trewinomyces annulifer offers a rare view of the morphology of a distinctive Early Devonian saprotrophic microfungus.
机译：下泥盆纪（类似于410 Ma）的Rhynie chert的凋落物层居住着各种各样的腐生真菌，但是，在动物群中只描述了其中的几种。一种新的微真菌，拟南芥。等。十一月，发生在Rhynie chert腐烂的陆地植物轴上的簇状植物。真菌由母体内根状系统和直立的母体外菌丝（茎）组成，后者带有单个末端孢子囊。孢子囊底部正下方的茎中通常会出现一个或两个连续的环。环线虫的总体形态类似于现存的Macrochytrium（Chytridiomycota）和Blastocladiella（Blastocladiomycota）属。然而，类根瘤是分离的或假分离的，这是现存的游动孢子真菌所不知道的特征，因此使得环状拟南芥的系统亲和力未得到解决。拟南芥（Trewinomyces annulifer）提供了独特的早期泥盆纪腐生微真菌形态的罕见见解。

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