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外源茉莉酸和茉莉酸甲酯诱导植物抗虫作用及其机理 被引量:78
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作者 桂连友 刘树生 陈宗懋 《昆虫学报》 CAS CSCD 北大核心 2004年第4期507-514,共8页
综述了茉莉酸 (jasmonicacid ,JA)和茉莉酸甲酯 (methyljasmonate ,MJA)的分子结构和应用其诱导的植物抗虫作用及其机制。植物受外源茉莉酸或茉莉酸甲酯刺激后 ,一条反应途径是由硬脂酸途径激活防御基因 ,另一条途径是直接激活防御基因... 综述了茉莉酸 (jasmonicacid ,JA)和茉莉酸甲酯 (methyljasmonate ,MJA)的分子结构和应用其诱导的植物抗虫作用及其机制。植物受外源茉莉酸或茉莉酸甲酯刺激后 ,一条反应途径是由硬脂酸途径激活防御基因 ,另一条途径是直接激活防御基因。防御基因激活后导致代谢途径重新配置 ,并可能诱导植物产生下列 4种效应 :(1)直接防御 ,即植物产生对害虫有毒的物质、抗营养和抗消化的酶类 ,或具驱避性和妨碍行为作用的化合物 ;(2 )间接防御 ,即产生吸引天敌的挥发物 ;(3)不防御 ,即无防御反应 ;(4 )负防御 。 展开更多
关键词 茉莉酸 茉莉酸甲酯 植物抗虫作用 诱导
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Molecular strategies of plant defense and insect counter-defense 被引量:27
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作者 KEYANZHU-SALZMAN JIAN-LONGBI TONG-XIANLIU 《Insect Science》 SCIE CAS CSCD 2005年第1期3-15,共13页
The prediction of human population growth worldwide indicates there will be a need to substantially increase food production in order to meet the demand on food supply.This can be achieved in part by the effective man... The prediction of human population growth worldwide indicates there will be a need to substantially increase food production in order to meet the demand on food supply.This can be achieved in part by the effective management of insect pests. Since plants have co-evolved with herbivorous insects for millions of years, they have developed an array of defense genes to protect themselves against a wide variety of chewing and sucking insects.Using these naturally-occurring genes via genetic engineering represents an environmentally friendly insect pest-control measure. Insects, however, have been actively evolving adaptive mechanisms to evade natural plant defenses. Such evolved adaptability undoubtedly has helped insects during the last century to rapidly overcome a great many humanimposed management practices and agents, including chemical insecticides and genetically engineered plants. Thus, better understanding of the molecular and genetic basis of plant defense and insect counter-defense mechanisms is imperative, not only from a basic science perspective, but also for biotechnology-based pest control practice. In this review, we emphasize the recent advance and understanding of molecular strategies of attack-counterattack and defense-counter-defense between plants and their herbivores. 展开更多
关键词 insect-plant interaction coevolution plant resistance molecular biology
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