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| 香蕉枯萎病菌毒素对香蕉叶片超微结构的影响 | |
| 引用本文： | 李赤,黎永坚,于莉,黄秉智.香蕉枯萎病菌毒素对香蕉叶片超微结构的影响[J].吉林农业大学学报,2011,33(2):158-164. |
| 作者姓名： | 李赤 黎永坚 于莉 黄秉智 |
| 作者单位： | 1. 广东海洋大学,湛江,524088 2. 广东海洋大学,湛江,524088;珠海市农业科学研究中心,珠海,519075 3. 广东农业科学院果树研究所,广州,510640 |
| 基金项目： | 湛江市科技招标项目(2004) |
| 摘 要： | 使用香蕉枯萎病菌4号小种粗毒素和纯品镰刀菌酸对新北蕉(耐病品种)和巴西蕉(感病品种)幼苗叶片进行处理,观察叶片超微结构发生的变化。结果表明:经100 mg／L粗毒素溶液处理2 h后,叶片细胞的超微结构开始受到破坏,12 h后破坏最为严重,表现为细胞发生质壁分离;叶绿体数量及其内部淀粉颗粒数量显著减少,出现大量的嗜锇颗粒,叶绿体片层膨胀扭曲并分解;线粒体变形,脊数量减少,最终膜局部破裂,内含物外流。耐病品种对粗毒素表现出较强的耐性,叶片超微结构遭到破坏的程度相对较轻。此外,粗毒素处理和镰刀菌酸处理的对比试验结果表明:镰刀菌酸对叶片超微结构的破坏与粗毒素相似,但破坏程度轻。 |
| 关 键 词： | 香蕉枯萎病 毒素 镰刀菌酸 超微结构 |
| 收稿时间： | 2010-06-01 |
Effects of Fusarium oxysporum f.sp.cubense Toxin on the Ultrastructure of Banana Leaves |
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| LI Chi,LI Yong-jian,YU Li,HUANG Bing-zhi.Effects of Fusarium oxysporum f.sp.cubense Toxin on the Ultrastructure of Banana Leaves[J].Journal of Jilin Agricultural University,2011,33(2):158-164. | |
| Authors: | LI Chi LI Yong-jian YU Li HUANG Bing-zhi |
| Institution: | 1. Guangdong Ocean University,Zhanjiang 524088, China|2. Zhuhai Agricultural Science Research Center,Zhuhai 519075,China|3. Institute of Fruit Tree Research,Guangdong Academy of Agricultural Sciences,Guangzhou 510640, China |
| Abstract: | The effects of fusaric acid and Fusarium oxysporum f.sp.cubense race 4 toxin on the ultrastructure of Xinbei banana and Baxi banana leaf tissue were studied.The results showed that the leaf ultrastructure of either Xinbei banana or Baxi banana began to appear damages after being treated with toxin in 2 hours,and 12 hours later the damages achieved the most seriously included plasmolysis;reduction of chloroplast and starch granules;appearance of osmiophilic granules;decomposition of chloroplast lamella;reduc... |
| Keywords: | banana vascular wilt toxin fusaric acid ultrastructure |
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