摘要
对大豆灰斑病抗病品种和感病品种的叶片组织结构 ,主要包括栅栏组织层数、栅栏组织密度、上下表皮细胞密度、蜡质含量及叶比重等 ,进行了比较研究。试验结果表明抗病品种叶片的栅栏组织排列整齐、紧密 ,而且层数相对较多 ,可以抵抗病菌的侵入和扩展 ,成为抗病的一个结构屏障 ;抗病品种的叶片蜡质含量高于感病品种 ,表明大豆叶片本身具有的蜡质层是抵抗和延迟病原菌侵入的另一个结构屏障。在叶比重上 。
There were different leaves structure between resistant and susceptible cultivars, the leaves structure studied included thickness of leaves, No.of palisade tissue, density of palisade tissue, thickness of the first line palisade cell, thickness of the second line palisade cell, density of inter-epidermal cell and density of exter-epidermal cell. The result showed that the palisade tissue arranged closely and in good order, this can be considered the second structure barrier to resist the hyphae of Cercospora sojina Hara penetrate in soybean leaves of resistant cultivars. And the wax content can be shown the third structural barrier in soybean leaves of resistant cultivars.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2002年第2期58-60,66,共4页
Chinese Journal of Oil Crop Sciences
基金
国家自然科学基金资助项目 (3 9470 496)
关键词
大豆
叶片结构
灰斑病
抗性
栅栏组织
蜡质含量
Soybean
Cercospora sojina Hara
Leaf structure
Palisade tissue
Wax content
