不同抗性甘薯品种感染疮痂病后的细胞超微结构  

Cell ultrastructure of different sweet potato varieties under the stress of sweet potato scab

作　　者：余文英[1] 潘廷国[1] 柯玉琴[1] 王湘平[2] 艾育芳[1] 阮妙鸿[1] 

机构地区：[1]福建农林大学生命科学学院,福建福州350002 [2]福建农林大学测试中心,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2005年第2期248-251,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省自然科学基金资助项目(B0210013)

摘　　要：在甘薯疮痂病胁迫下,抗病性不同的甘薯品种金山1255(感病)和广薯8870(抗病)染病后,叶片细胞的超微结构都发生了变化,最敏感的部位均是细胞膜;活性氧产生的两个主要部位(叶绿体和线粒体)也受到了不同程度的攻击;感病品种的叶绿体和线粒体外膜外突成致密的小球,产生了大量的吞噬体,抗病品种则产生了大量用于修复细胞膜的高尔基小泡.Under sweet potato scab (Sphaceloma batatas Sawada) stress, the ultrastructure changed in two sweet potato varieties with different responses to sweet potato scab stress (Guangshu 88-70-disease resistant, Jinshan 1255-disease sensitive). The most sensitive part was cell membrane. Mitochondrion and chloroplast which produced active oxygen were decomposed at different rates. There were lots of phagosome in sensitive variety and lots of transitional vesicle in resistant variety. The transitional vesicle were closed related to repair-deficiency of cell membrane.

关 键 词：甘薯品种 细胞超微结构 疮痂病 感染 抗性 金山1255 叶片细胞 感病品种 抗病品种 细胞膜 线粒体 叶绿体 抗病性 活性氧 吞噬体 部位 外膜 小泡 

分 类 号：S531.023[农业科学—作物学] X503.233[环境科学与工程—环境工程]