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首页> 外文期刊>Forests >Eutypella parasitica and Other Frequently Isolated Fungi in Wood of Dead Branches of Young Sycamore Maple ( Acer pseudoplatanus ) in Slovenia
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Eutypella parasitica and Other Frequently Isolated Fungi in Wood of Dead Branches of Young Sycamore Maple ( Acer pseudoplatanus ) in Slovenia

机译：Eutyypella parasitica和其他经常孤立的真菌在斯洛文尼亚的年轻梧桐枫叶（acer pseudoplatanus）的死分支。

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Eutypella parasitica R.W. Davidson and R.C. Lorenz is the causative agent of Eutypella canker of maple, a destructive disease of maples in Europe and North America. The fungus E. parasitica infects the trunk through a branch stub or bark wound. Because the fungal community may have an impact on infection and colonization by E. parasitica , the composition of fungi colonizing wood of dead branches of sycamore maple ( Acer pseudoplatanus L.) was investigated in five sampling sites in Slovenia. Forty samples from each sampling site were collected between the November 2017 and March 2018 period. Isolations were made from the wood in the outer part of dead branches and from discoloured wood in the trunk that originated from a dead branch. Pure cultures were divided into morphotypes, and one representative culture per morphotype was selected for further molecular identification. From a total of 2700 cultured subsamples, 1744 fungal cultures were obtained, which were grouped into 212 morphotypes. The investigated samples were colonized by a broad spectrum of fungi. The most frequently isolated species were Eutypa maura (Fr.) Sacc., Eutypa sp. Tul. and C. Tul., Fusarium avenaceum (Fr.) Sacc., Neocucurbitaria acerina Wanas., Camporesi, E.B.G. Jones and K.D. Hyde and E. parasitica . In this study, we distinguished species diversity and the fungal community. There were no significant differences in the diversity of fungal species between the five sampling sites, and branch thickness did not prove to be a statistically significant factor in fungal species diversity. Nevertheless, relatively low Jaccard similarity index values suggested possible differences in the fungal communities from different sampling sites. This was confirmed by an analysis of similarities, which showed that the isolated fungal community distinctly differed between the five sampling sites and between the different isolation sources. Eutypella parasitica was isolated from all five investigated sampling sites, although Eutypella cankers were observed in only three sampling sites, indicating the possibility of asymptomatic infection.
机译：Eutypella Parasitica R.W. Davidson和R.C. Lorenz是枫叶菌腐败蜜蜂的致病因子，欧洲和北美的枫树破坏性疾病。真菌E. Parasitica通过分支存根或树皮伤口感染树干。因为真菌群落可能对E. parasitica的感染和定植产生影响，因此在斯洛文尼亚的五个取样位点研究了梧桐枫（Acer Pseudoctatanus L.）的死亡分枝的真菌殖民木材的组成。 2017年11月至2018年3月期间，收集了来自每个抽样网站的四十个样本。分离是由死枝外部的木材制成的，并且在源自死区的树干中的变色木材。将纯培养物分为Mor型型，选择每种不同型的一个代表性培养物用于进一步分子鉴定。从总共2700个培养的副产品，获得1744种真菌培养物，将其分为212个Mor型薄膜。所研究的样品通过广谱的真菌来殖民。最常见的物种是Eutypa maura（Fr.）Sacc。，Eutypa sp。托尔。和C. tul。，镰刀菌，佛罗里大学（Fr.）Sacc。，Neocucurbitaria Acerina Wanas。，Camporesi，E.B.G.琼斯和K.D.海德和E.寄生虫。在这项研究中，我们杰出物种多样性和真菌群落。五个采样位点之间的真菌物种的多样性没有显着差异，分支厚度并未证明是真菌物种多样性的统计学意义。然而，相对较低的Jaccard相似性指标值表明来自不同抽样网站的真菌社区可能的差异。通过对相似性的分析证实了这一点，这表明分离的真菌群体在五个取样位点和不同隔离源之间明显不同。尽管仅在三个采样位点观察到eUtypella溃疡，但表明无症状感染的可能性，均为eutypella溃疡癌的分离出eutyopella parasitica。

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