| 氨基寡糖素对黄瓜白粉病菌侵染的抑制作用* |
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| 引用本文： | 马青 孙辉 杜昱光 赵小明 商鸿生. 氨基寡糖素对黄瓜白粉病菌侵染的抑制作用*[J]. 菌物学报, 2004, 23(3): 423-428 |
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| 作者姓名： | 马青 孙辉 杜昱光 赵小明 商鸿生 |
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| 作者单位： | 1. 西北农林科技大学植物保护学院,杨凌,712100
2. 中国科学院大连化学物理研究所,大连,116023 |
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| 基金项目： | 高技术研究发展计划项目(2002AA245131)和中科院知识创新工程重要方向资助项目(KSC×2-SW-301-03) |
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| 摘 要： | 用透射电子显微镜,研究了寡聚糖类药剂中科6号(2%氨基寡糖素)处理黄瓜Cucumis sativus 植株叶片后对白粉病菌Sphaerotheca fuliginea侵染的抑制作用。超微结构观察表明,病菌发育受到明显抑制,表现为白粉菌菌丝细胞质凝聚,细胞器解体和细胞组织崩解;吸器内的原生质电子致密度加深,吸器畸形,吸器壁增厚,细胞器解体,最终吸器坏死。
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| 关 键 词： | 寡聚糖 菌丝 吸器 抑制 |
| 文章编号： | 1672-6472(2004)03-0423-0428 |
| 修稿时间： | 2003-10-24 |
INHIBITION OF AMINO OLIGOCHITOSAN TO THE INFECTION OF CUCUMBER POWDERY MILDEW |
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| Abstract: | After treating cucumber leaves with amino oligochitosan, the inhibition of the oligosaccharide to the infection of cucumber powdery mildew, Sphaerotheca fuliginea, was studied by means of TEM. The results showed that the mycelial development treated with oligosaccharides was remarkably inhibited. The cytoplasm of powdery mildew mycelium was aggregated. Its organelles disintegrated and its cytoplasm collapsed. The protoplasm in haustoria became electronically dense. Haustoria became malformed and haustorial wall thickened. Organelles disintegrated, and eventually the haustoria necrotized. |
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| Keywords: | Oligosaccharide mycelium haustorium inhibition |
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