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Tilletia puccinelliae, a new species of reticulate-spored bunt fungus infecting Puccinellia distans

机译:Tilletia puccinelliae,一种新的网状孢子真菌,可感染Distan

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摘要

A shipment of Fults alkaligrass seed (Puccinellia distans) grown in Washington state containing bunted florets was intercepted by quarantine officials at China's Tianjin Entry-Exit Quarantine and Inspection Bureau. The bunted florets were filled with irregularly shaped, reticulately ornamented teliospores that germinated in a manner characteristic of systemically infecting Tilletia spp. on grass hosts in subfamily Pooideae. Based on morphological characters and a multigene phylogenetic analysis of the ITS region rDNA, eukaryotic translation elongation factor I alpha and a region of the second largest subunit of RNA polymerase II including a putative intein, the Puccinellia bunt is genetically distinct from known Species of Tilletia and is proposed as a new species, T. puccinelliae.
机译:在华盛顿州生长的一株Fults碱草种子(Puccinellia distans)装有彩条小花,被中国天津出入境检验检疫局的检疫人员截获。彩旗的小花充满不规则形状,网状装饰的丝状芽孢,该芽孢以系统感染Tilletia spp的特征为特征。在Po科亚科的草地寄主上。基于形态特征和ITS区域rDNA,真核翻译延伸因子Iα以及RNA聚合酶II第二大亚基区域(包括推定的内含蛋白)的多基因系统发育分析,Puccinellia bunt在遗传学上不同于已知的Tilletia和被提议为T. puccinelliae的新物种。

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