Pathogenicity and genetic variation of Phytophthora cactorum from silver birch and strawberry
Pathogenicity and genetic variation of Phytophthora cactorum from silver birch and strawberry
复制标题
银桦和草莓疫霉的致病性及遗传变异
DOI：
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发表时间：
1998
影响因子：
1.8
通讯作者：
H. Nuorteva
中科院分区：
文献类型：
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作者：
A. Lilja;R. Karjalainen;P. Parikka;K. Kammiovirta;H. Nuorteva
从垂枝桦（Betula pendula）幼苗的茎坏死病斑和草莓（Fragaria）上分离到恶疫霉菌株
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患冠腐病的ananassa植物对其宿主植物是致病的。只有从桦树分离物造成明确的病变，非受伤的桦树树皮。从桦树上分离到的恶疫霉对草莓没有危害。随机扩增多态性DNA（RAPD）分析表明，P. cactorum内的变化，分离自银具有不同的带型比那些从草莓。UPGMA分析将来自银和草莓植株的分离物聚类成单独的组。数据表明，芬兰最近爆发的桦树P. cactorum不可能是由受冠腐病影响的草莓植物进口引起的。
AbstractPhytophthora cactorum strains isolated from necrotic stem lesions on Betula pendula seedlings or from Fragaria
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ananassa plants suffering from crown rot were pathogenic to their host plants. Only isolates from birch caused clear lesions on non-wounded bark of birch. P. cactorum isolates from birch were not detrimental to strawberry. Random Amplified Polymorphic DNA (RAPD) analysis revealed variation within P. cactorum, isolates from silver birch having different banding patterns than those from strawberry. UPGMA analysis clustered isolates from silver birch and strawberry plants into separate groups. The data show that the recent outbreak in Finland of P. cactorum in birch could not be caused by the import of strawberry plants affected by crown rot.