水稻白叶枯病菌诱导非寄主植物烟草过敏性反应及其信号物质

被引:1
作者
何晨阳
顾光昊
王金生
机构
[1] 南京农业大学植物保护学系
关键词
水稻白叶枯病菌; 烟草; 过敏性反应; 脂多糖; 多糖体;
D O I
暂无
中图分类号
S432.1 [植物病理学];
学科分类号
摘要
用注射接种法测定了水稻白叶枯病菌诱导烟草过敏性反应的能力,发现所有测试菌株在诱导烟草过敏性反应出现时间和组织中的菌量方面都有差异。不同来源和小种的原始菌株都具有诱导能力,转座子Tn5诱变的突变体菌株只有一个突变体 XcoM3105失去了诱导能力.亲本菌株在烟草叶片组织中的种群量迅速下降,细菌被限制在接种区内,突变体菌株在组织中可以繁殖和扩展。测定细菌细胞不同组分的诱导活性,发现脂多糖是诱导烟草过敏性反应的信号物质,诱导活性中心是多糖体组分.亲本菌株和突变体的脂多糖和多糖体表现相同的诱导活性。对这一结果进行了讨论.
引用
收藏
页码:32 / 36
页数:5
相关论文
共 6 条
  • [1] Evidence that contact with the plant cell is necessary for the hypersensitive reaction but not the susceptible reaction. Stall R E.and A A Cook. Physiological Plant Pathology . 1979
  • [2] Lipopolysaccharide composition of the wilt pathogen pseudomonas solanaearum:correlation with the hypersensitive response in tobacco. Whatley M H et al. Plant Physiology . 1980
  • [3] Interaction of bacteria and host cell walls:Its relation to mechanisms of induced resistance. Sequeira L,G Gaard and G A De Zoeten. Physiological Plant Pathology . 1977
  • [4] Fraction of Lipoplysaccharide form Escherichia colli 0111:B4 prepared by two extraction procedures. Morrison D C and Leive L. Journal of Biological Chemistry . 1975
  • [5] Purification of extracellular polysaccharides from Pseudomonas phaseolicola which induce water socking in besn leaves. EL-Banoby F E and Rudolph K. Physiological Plant Pathology . 1980
  • [6] In:Worris J R and Ribbous D N ed,Methods in Microbiology,Vol 5A. Work E:Cell Walls. . 1971