| 一串红叶斑病的病原菌鉴定 |
| Identification of Corynespora leaf spot pathogen of Salvia splendens |
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| 中文关键词:形态学，核糖体DNA，鉴定，致病性试验，种子带菌检验 |
| 英文关键词:morphology, rDNA, pathogenicity test, seed contaminating inspection |
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| 摘要点击次数: 1923 |
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| 中文摘要: |
| 一串红Salvia splendens叶斑病被发现在杭州市农科所栽培花卉的遮阳网大棚中，是由棒孢霉属真菌侵染引起的。在田间，病原菌侵染植株的茎和叶片，引起当年移植苗发生茎腐、落叶、植株枯萎和死亡。通过对病原菌形态学观察以及核糖体DNA ITS序列分析，证明侵染一串红的病原菌为决明生棒孢霉菌Corynespora cassiicola。致病性试验结果表明，一串红是决明生棒孢霉菌的寄主。种子带菌检验结果显示，种子带菌率仅为1%。 |
| 英文摘要: |
| The Corynespora leaf spot of Salvia splendens was found in the screenhouses covered with black plastic shade nettings for cultivating ornamental plants in the Institute of Hangzhou Agricultural Sciences. The fungal pathogen infected stems and leaves of the host plants and caused stem rot and leaf spots, resulting in earlier defoliation and plant wilting or even death. The morphological observation and rDNA ITS sequence analyses proved that the isolates of the causal agent were C. cassiicola. The pathogenicity tests confirmed that Salvia splendens is a natural host of C. cassiicola. Seed inspection showed that C. cassiicola contaminating rate was only 1%. |
| 张丽丽 张敬泽* 胡东维 徐同. 一串红叶斑病的病原菌鉴定[J]. 菌物学报, 2008, 27(5): 634-640 |
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