Insect pests and the evolution of defensive glandular trichomes in alfalfa
Insect pests and the evolution of defensive glandular trichomes in alfalfa
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苜蓿害虫与防御性腺毛的进化
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
E. Small
中科院分区：
文献类型：
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作者：
E. Small
腺毛可以保护苜蓿属物种免受多种昆虫目中的食草动物的侵害。具有高浓度腺毛的野生苜蓿出现在该物种地理范围的有限部分（苜蓿属）。广义上说），特别是在高加索，乌克兰和苏联的邻近地区。这些观察结果表明，这种适应是为了保护苜蓿免受具有相似地理分布的害虫的侵害。分枝豆荚被腺毛覆盖的sativa植物往往比豆荚没有腺毛的植物种子更大，如果更少的话，这也表明了对食草动物的适应。由于腺毛主要发生在子房和豆荚上，害虫可能以种子为食。在考虑了栽培苜蓿的主要苏联害虫的生物学和地理学之后，得出的结论是，最有可能对豆荚腺体的局部进化负责的昆虫是Tychius（鞘翅目：拟胡蜂科）的物种。
Glandular trichomes can defend (Medicago species from herbivores in a variety of insect orders. Wild alfalfas with high concentrations of glandular trichomes occur in a restricted portion of the geographical range of the species (Medicago saliva L. sensu lato), especially in the Caucasus, Ukraine, and adjacent areas of the USSR. These observations suggest that this adaptation was developed to defend the alfalfa against insect pests with similar geographical distribution. That M. sativa plants with pods covered with glandular hairs tend to have larger, if fewer, seeds than plants with pods lacking the hairs also suggests an adaptation against herbivores. Because the glandular trichomes occur primarily on the ovaries and pods, the pests likely feed on seeds. After considering the biology and geography of the major Soviet insect pests of cultivated alfalfa, it was concluded that the most likely insects responsible for the localized evolution of pod glandularity are species of Tychius (Coleoptera: Curculionid...