文档介绍：
甲醇处理寄主萝卜对桃蚜和美洲斑潜蝇的
影响#
慕莉莉,李国清**
5
10
(南京农业大学植保学院,南京 210095)
摘要:甲醇广泛存在于自然界和人类生活环境中。甲醇的分子式为 CH3OH, 由于分子量小,
没有碳-碳共价键,是非常有用的氢载体。甲醇极易分解而提供能源,且供应氢分子。甲醇
在很多国家已经作为石油的替代燃料而被广泛应用。可见,甲醇污染已成为不可忽视的环境
问题。环境中的甲醇也影响植食性昆虫。本文比较了对照、叶施或根施 2%、5%和 10%甲醇
水溶液的萝卜苗对桃蚜和美洲斑潜蝇的影响,发现甲醇处理减少了这两种害虫的定殖,降低
了它们的为害。暗示甲醇处理启动了萝卜苗防御相关途径,增加异硫氰酸酯类合成以忌避桃
蚜和美洲斑潜蝇。
关键词:甲醇;萝卜苗;桃蚜;美洲斑潜蝇;寄主选择
中图分类号:
15
Influence of methanol-treated Raphanus sativus on Myzus
persicae and Lirimyza sativae
MU Lili, LI Guoqing
(Plant Protection College, Nanjing Agricultural University, NanJing 210095)
20
25
30
35
40
Abstract: Methanol is widely distributed in nature and man-made environment. The chemical
formula is CH3OH, which makes it extremely useful as a hydrogen carrier fuel, since it is packed
with hydrogen and has no carbon to carbon chemical bonds. Methanol is easy to break down for
obtaining energy. This means methanol has a great potential for use in fuel cells because of the
ease of gaining H2 when broken down. Therefore, methanol has been widely used as new fuel to
replance oil. This results in environmental population and affects pest insects on plants. The radish
seedlings were treated with the foliar and root application of 2%, 5% and 10% methanol aqueous
solutions, and the host preference and damage to treated plants by two polyphages, the green
peach aphid (Myzus persicae) and the v