| 番荔枝根腐病病原菌的鉴定及其生防真菌的筛选 |
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| 引用本文： | 詹儒林,雷新涛,何衍彪,赵艳龙.番荔枝根腐病病原菌的鉴定及其生防真菌的筛选[J].果树学报,2005,22(3):234-237. |
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| 作者姓名： | 詹儒林 雷新涛 何衍彪 赵艳龙 |
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| 作者单位： | 中国热带农业科学院南亚热带作物研究所,广东,湛江,524091 |
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| 基金项目： | 中国热带农业科学院院校基金 |
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| 摘 要： | 番荔枝根腐病是番荔枝的严重病害。在广东湛江番荔枝果园中,从病根中分离到了5种不同的真菌菌株,其中有致病力的3种:寄生疫霉(Phytophthoraparasitica)、棕榈疫霉(P.palmivora)、镰刀菌(Fusariumsp.),镰刀菌的致病力最强,寄生疫霉次之,棕榈疫霉的致病力较弱。致病力测定表明了以上二3种真菌菌株均有可能为湛江番荔枝根腐病的病原菌。分别以各病原菌为靶标,用对峙培养法,从果园健康番荔枝的根际土壤和果实、叶片筛选到了3个对上述病原物都有较强拮抗活性的生防菌株,经初步鉴定均为木霉菌(Trichodermasp.)。防效测定表明,这些拮抗菌株均有很好的防效,是极具开发潜能的生防菌株。
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| 关 键 词： | 番荔枝 根腐病 鉴定 生物防治 木霉菌 |
| 文章编号： | 1009-9980(2005)03-234-04 |
| 修稿时间： | 2004年10月10 |
Identification of root rot diseases and screening of biocontrol fungi in sugar apple |
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| ZHAN Ru-lin,LEI Xin-tao,HE Yan-biao,ZHAO Yan-long.Identification of root rot diseases and screening of biocontrol fungi in sugar apple[J].Journal of Fruit Science,2005,22(3):234-237. |
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| Authors: | ZHAN Ru-lin LEI Xin-tao HE Yan-biao ZHAO Yan-long |
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| Abstract: | Root rot was a severe disease of sugar apple (A nona squamosa L). 5 isolates were isolated from the infected roots in Zhanjiang orchard,3 of them, Phytophthora parasitica, P. palmivora and Fusorium sp., were the pathogens caused the root rot of sugar apple trees. In biocontrol studies, 3 isolates, belonging to Trichoderma sp. were screened from the soil, leaves and fruit of sugar apple which were tested to be strong antagonistic to the root rot diseases by pairing culture on PDA. It is believed that these isolates have great potential for using as antagonistic fungi for control of sugar apple root rot diseases. |
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| Keywords: | Sugar apple Root rot disease Biocontrol fungi Trichoderma sp |
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