摘要
受病原体感染后,植物会获得一种持久广泛的抗性,称为系统获得性抗性,受到昆虫侵害时也会获得类似的系统获得性抗性。植物系统抗虫与抗病信号分子不同,前者是茉莉酸(JA)、甲基茉莉酸(Me-JA)或系统素,而后者是水杨酸(SA)。SA 介导的系统抗病信号途径与 JA 等介导的系统抗虫信号途径并非完全独立,而是存在所谓的“交叉对话”,但“交叉对话”结果是相互促进还是抑制仍不清楚。植物系统抗性信号及其互作研究无疑会完善植物保护策略。
After pathogen infection, plant will acquire a long lasting broad-spectrum resistance, known as systemic acquired resistance (SAR). Plant can also acquire a similar SAR after insect attack. The signal molecules of these two kinds of SAR are different: Of pathogen, it is salicylic acid (SA) ;And of insect, it is jasmonic acid (JA), methyl-jasmonic acid (Me-JA) or systemin. SAR signal transduction pathways mediated by JA, Me-JA or systermin is not thoroughly independent of by SA, but has a cross-talk between them, and whether the influence of their cross-talk on each other is promotion or reduction is still unknown. But it is undoubted that research on this subject will contribute to the foundation of plant protection strategies.
出处
《植物保护学报》
CAS
CSCD
北大核心
2005年第4期425-430,共6页
Journal of Plant Protection
基金
国家自然科学基金(30170238
30471133)资助
关键词
虫害
系统获得性抗性
水杨酸
茉莉酸
昆植互作
Insect pest
systemic acquired resistance
salicylic acid
jasmonic acid
insect-plant interaction