Bernays E A, Chapman R F, Singer M S
Department of Ecology and Evolutionary Biology, University of Arizona, Tucson 85721-0088, USA.
J Comp Physiol A. 2000 Jan;186(1):13-9. doi: 10.1007/s003590050002.
Caterpillars of the arctiid moth, Grammia geneura, are polyphagous, but species of Plantago are amongst their preferred food plants. A neuron in the medial styloconic sensillum on the galea has been shown to have a general phagostimulatory function. Experiments with binary mixtures and cross-adaptation have demonstrated that it responds to some sugars, to several amino acids, and also to catalpol. Catalpol is a plant secondary compound in Plantago and a phagostimulant for the caterpillars. The possible significance of combining sensitivity to nutrient compounds with sensitivity to a secondary compound is discussed.
灯蛾科蛾类幼虫Grammia geneura是多食性的，但车前草属植物是它们偏爱的食草之一。已证明，位于盔状触角内侧柱形感器中的一个神经元具有一般的摄食刺激功能。对二元混合物和交叉适应的实验表明，它对一些糖类、几种氨基酸以及梓醇都有反应。梓醇是车前草中的一种植物次生化合物，对这些幼虫具有摄食刺激作用。本文讨论了对营养化合物的敏感性与对次生化合物的敏感性相结合的可能意义。
