Induced Plant Resistance and Susceptibility to Late-Season Herbivores of Wild Radish
Induced Plant Resistance and Susceptibility to Late-Season Herbivores of Wild Radish
复制标题
野萝卜晚季食草动物的诱导植物抗性和易感性
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
M. Sherriffs
中科院分区：
文献类型：
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作者：
A. Agrawal;M. Sherriffs
摘要野生萝卜是一种一年生植物，对草食动物具有广谱诱导抗性。在两个试验中，我们在田间放置盆栽植物[对照、人工修剪和损坏的油菜螟幼虫]，测定油菜螟的产卵情况。Rapae（一种专业食草动物），跳蚤甲虫（一种专业食草动物）和兔子（一种通才食草动物）的损害。诱导反应吸引p产卵。增加了跳蚤甲虫的伤害，而对兔子的食草性影响很小。不同植物科对家兔取食和家兔产卵均有不同程度的抗性。菜花属，但不以蚤甲虫为食。人工修剪对植株的诱导效果不佳。野生萝卜的诱导反应是一把双刃剑，在一定条件下增加了一些食草动物的食草性，同时减少了其他食草动物的食草性。
Abstract Wild radish is an annual plant that exhibits broad spectrum induced resistance to herbivores. In two experiments, we placed potted plants [control, manually clipped, and damaged byPieris rapae(L.) larvae] in the field and assayed for oviposition byP. rapae(a specialist herbivore), damage by flea beetles (a specialist herbivore), and damage by rabbits (a generalist herbivore). Induced responses attracted oviposition byP. rapaeand increased damage by flea beetles, while having a minimal effect on rabbit herbivory. Plant families had different levels of resistance to herbivory by rabbits and to oviposition byP. rapae,but not to herbivory by flea beetles. Manual clipping was a poor inducer of plant responses. Induced responses in wild radish can be a double-edged sword, increasing herbivory by some herbivores under certain conditions, while reducing herbivory by other herbivores.