In Brazil, Paspalum species are commonly used in sports lawns, landscape projects, and as forage for livestock. Paspalum guenoarum plants showing symptoms of take‐all disease were observed in the state of Rio Grande do Sul, Brazil. The fungus Gaeumannomyces graminis is the only species reported associated with this disease on Paspalum. In recent years, new species of Gaeumannomyces have been proposed based on molecular studies, which demonstrated the existence of a species complex. Take‐all affects rice and wheat, but the aetiology of this disease on P. guenoarum is still unknown; this work aimed to elucidate the aetiology of the take‐all on P. guenoarum in Brazil and evaluate possible alternative hosts of agricultural importance. Based on combined phylogenetic analyses of ITS, LSU, TEF‐1α, and RPB1 sequences, the fungal pathogen was identified as Atripes paspali gen. et sp. nov., which is proposed as a new genus in the Magnaporthaceae family. A representative isolate of A. paspali was inoculated on healthy P. guenoarum plants and reproduced the same symptoms of take‐all observed in the field. Furthermore, this fungus is also able to cause take‐all on wheat plants; temperature directly affected the incidence and development of the disease in wheat. Take‐all on P. guenoarum is caused by A. paspali.

中文翻译：

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Atripes paspali gen。等。十一月 （Magnaporthaceae）在巴西的Paspalum guenoarum上引起全盘疾病

在巴西，Paspalum种常用于运动草坪，景观项目以及用作牲畜的饲料。在巴西南里奥格兰德州发现了显示出全盘感染症状的巴氏spa藜植物。真菌Gaeumannomyces graminis是在Paspalum上唯一与这种疾病相关的物种。近年来，基于分子研究提出了新的Gaeumannomyces物种，这证明了物种复合体的存在。通吃会影响稻米和小麦，但是这种疾病的病因在P上。豚鼠仍然未知；这项工作旨在阐明P上通吃的病因。巴西的guenoarum，并评估可能具有农业重要性的替代宿主。基于对ITS，LSU，TEF-1α和RPB1序列的综合系统发育分析，该真菌病原体被确定为Atripes paspali gen。等。十一月，被提议为Magnaporthaceae家族的新属。一位代表株A.雀稗接种于健康P。在野外观察到的人参植物和重现了通吃的相同症状。此外，这种真菌还可以对小麦植株产生全盘危害。温度直接影响小麦病害的发生和发展。继续P. guenoarum是造成A.雀稗。