Histology of Stemphylium solani and tomato interaction
Histology of Stemphylium solani and tomato interaction
复制标题
DOI：
10.1590/s0100-41582005000300002
复制
发表时间：
2005-05-01
期刊：
影响因子：
--
通讯作者：
Matsuoka, Kiyoshi
中科院分区：
文献类型：
--
作者：
Bentes, Jania L. S.;Matsuoka, Kiyoshi
采用组织化学、扫描和透射电镜技术研究了茄干霉侵染耐药番茄（Motelle）和易感番茄（Moneymaker）小叶的过程。抗性番茄和敏感番茄的刺入前分生孢子事件没有数量上的差异，表明抗性是刺入后反应的结果。组织学研究表明，抗性和易感植株的初始侵染事件相似。病原菌主要通过气孔侵入番茄叶片，气孔下腔内形成小泡。次生菌丝起源于囊泡，在接种后24和36 h内，两个品种的细胞间和细胞内均出现分支。抗性番茄叶肉细胞壁的附着阻止了细胞内定植。
The infection process of Stemphylium solani on resistant (Motelle) and susceptible (Moneymaker) tomato (Lycopersicon esculentum) leaflets was studied using histochemical, scanning and transmission electron microscopy techniques. No quantitative differences were found in the pre-penetration conidial events on resistant and susceptible tomatoes, indicating that resistance results from post-penetration responses. The histological studies showed that the initial infection events were similar in resistant and susceptible plants. The pathogen invaded the tomato leaf primarily through stomates and a vesicle developed inside the substomatal cavity. Secondary hyphae originated from the vesicle and within 24 and 36 h after inoculation had branched inter and intracellularly in both cultivars. Cell wall appositions in the mesophyll of resistant tomato prevented intracellular colonization.