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首页> 外文期刊>Mycologia >Two new endophytic Atractiellomycetes, Atractidochium hillariae and Proceropycnis hameedii
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Two new endophytic Atractiellomycetes, Atractidochium hillariae and Proceropycnis hameedii

机译：两种新的内生心肌细胞霉素，Atractidochium hillariae和proceropycnis hameedii

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摘要

Sterile fungal isolates are often recovered in leaf and root endophytic studies, although these seldom play a significant role in downstream analyses. The authors sought to identify and characterize two such endophytesone representing the most commonly recovered fungal isolate in recent studies of needle endophytes of Pinus taeda and the other representing a rarely isolated root endophyte of Populus trichocarpa. Both are shown by DNA sequencing to be undescribed species of Atractiellomycetes (Pucciniomycotina, Basidiomycota), a poorly characterized class of mostly plant-associated and presumably saprobic microfungi. The authors describe the new genus and species Atractidochium hillariae (Phleogenaceae) and the new species Proceropycnis hameedii (Hoehnelomycetaceae), both in the Atractiellales, to accommodate these unusual isolates. Following incubations of 1-2 mo, A. hillariae produces minute white sporodochia, similar to those produced by several other members of Atractiellales, whereas Pr. hameedii forms conidia singly or in chains in a manner similar to its sister species Pr. pinicola. Additionally, we provide a taxonomic revision of Atractiellomycetes based on multilocus analyses and propose the new genera Neogloea (Helicogloeaceae) and Bourdotigloea (Phleogenaceae) to accommodate ex-Helicogloea species that are not congeneric with the type H. lagerheimii. Atractiellomycetes consists of a single order, Atractiellales, and three families, Hoehnelomycetaceae, Phleogenaceae, and Helicogloeaceae. Accumulated evidence suggests that Atractiellomycetes species are common but infrequently isolated members of plant foliar and root endobiomes.
机译：无菌真菌分离物通常在叶片和根内生成的研究中回收，尽管这些很少在下游分析中发挥重要作用。作者试图识别和表征两种这样的内体细胞酮，代表最近的Pinus taeda的针内细胞的研究中最常见的真菌分离物，另一个代表很少分离的杨树科氏菌族的孤立的根内食体。两者都被DNA测序显示为未描述的Atractiellomycetes（Pucciniomycotina，Basidiomycota），一种特征在于大多数植物相关和可能的Saprobic Microfungi的特征差异。作者描述了新的AtractiDochium Hillariae（肺炎）和新物种Proceropycnis Hameedii（Hoehnelomycetaceae），无论是在atractiellales中，以适应这些不寻常的分离株。在孵育1-2 mo后，A. Hillariae生产微小的白色孢子腈，类似于由其他atractiellales的其他成员产生的那些，而Pr。 Hameedii以与其姐妹物种公关类似的方式单独或链式形式。 Pinicola。此外，我们提供基于多点分析的Atractiellomycetes的分类系统修订，并提出新的Genera Neogloea（Helicogloeaceae）和Bourdotigloea（Phleogenaceae），以适应不是与Haberheimii型而不是相互依赖的ex-helicogloea种类。 Atractiellomycetes由单个订单，atractiellales和三个家庭，登月核糖科，phleogenaceae和Helicogloeae组成。积累的证据表明，Atractiellomycetes物种是常见的，但植物叶面和根胚乳的成员很常见。

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