Fungi associated with necrotic apical parts of Fraxinus excelsior shoots
Fungi associated with necrotic apical parts of Fraxinus excelsior shoots
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DOI：
10.1046/j.1439-0329.2002.00301.x
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发表时间：
2002-12-01
期刊：
影响因子：
1.4
通讯作者：
Przybyl, K
中科院分区：
文献类型：
--
作者：
Przybyl, K
在波兰东部、北部和中部的四个森林区划内，对2-3岁的欧洲白蜡树（ash Fraxinus excelsior）自种和人工林幼苗进行了茎坏死调查。从鲜坏死枝条的顶端分离得到真菌，并确定了部分真菌的致病性。有些物种在所有四个站点均被分离；该类群中最一致的成员是枝孢枝孢菌、ambiens胞孢子菌、Discula sp.、红土镰刀菌、Phoma sp.、scobopsis和P. controversa。残双倍虫在所有地点均有分离，但频率不同。在生长室内和温室条件下，对2月龄和2岁的牛蒡苗茎部进行伤口接种，可引起坏死性损伤。
Stem necrosis was investigated in 2-3-year-old seedlings of European ash Fraxinus excelsior, both self-sown and in plantations within four Forest Divisions in eastern, northern and central Poland. Fungi isolated from the apical parts of shoots showing fresh necroses were identified and the pathogenicity of some of them was determined. Some species were isolated at all four sites; the most consistent members of this group were Cladosporium cladosporioides, Cytospora ambiens, Discula sp., Fusarium lateritium, Phoma sp., Phomopsis scobina and P. controversa. Diplodia mutila was isolated at all the sites, but with variable frequency. It induced necrotic lesions following wound inoculation of stems of 2-month-old and 2-year-old seedlings of F. excelsior in growth chamber and greenhouse conditions.