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首页> 外文期刊>European Journal of Plant Pathology >Pathogenicity testing of lesser-known fungal trunk pathogens associated with wood decay of almond trees
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Pathogenicity testing of lesser-known fungal trunk pathogens associated with wood decay of almond trees

机译：杏仁树木材腐烂相关的鲜为人知的真菌树干病原体的致病性测试

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摘要

Cross infection of multiple hosts by fungal trunk pathogens has been reported to occur worldwide. It supports the hypothesis that infected hosts adjacent to vineyards may serve as sources of inoculum for these pathogens. Among the alternative hosts, different studies have shown that almond represents a rich catch-crop for many fungal trunk pathogens. The hyphomycetes Collophora hispanica, Phaeoacremonium (Pm.) amygdalinum, Pm. iranianum and Pleurostomophora richardsiae have recently been isolated from wood samples with internal necroses and brown to black vascular streaking of almond trees showing symptoms of decline in Spain, although their status as pathogens was so far unknown. We inoculated almond trees cv. Ferragnes with these fungal species in greenhouse experiments to determine their pathogenic potential. All of them infected, colonised and produced lesions statistically different from the control, Pl. richardsiae being the most aggressive. Therefore, Co. hispanica, Pm. amygdalinum, Pm. iranianum and Pl. richardsiae should be considered as trunk pathogens of almond trees.
机译：据报道，真菌主干病原体对多种宿主的交叉感染已在世界范围内发生。它支持以下假说：邻近葡萄园的被感染宿主可能是这些病原体的接种源。在替代寄主中，不同的研究表明，杏仁代表了许多真菌树干病原体的丰富捕获。嗜盐菌西班牙集藻，扁藻扁桃体（Pm。amygdalinum，Pm。）。最近从带有内部坏死和杏仁树棕色至黑色血管斑纹的木材样品中分离出了铱和菊苣，尽管西班牙作为病原体的地位目前尚不清楚。我们给杏仁树接种了简历。 Ferragnes与这些真菌种类在温室实验中确定其致病潜力。从统计学上讲，它们全部感染，定植并产生的损伤均与对照P1不同。理查德亚斯最积极。因此，Co。hispanica，Pm。杏仁核，Pm。铱和Pl。理查德西亚斯应被视为杏仁树的树干病原体。

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