Olfactory and Visual Stimuli Affecting Host Plant Detection in Homalodisca coagulata (Hemiptera: Cicadellidae)
Olfactory and Visual Stimuli Affecting Host Plant Detection in Homalodisca coagulata (Hemiptera: Cicadellidae)
复制标题
影响 Homalodisca coagulata 寄主植物检测的嗅觉和视觉刺激（半翅目：叶蝉科）
DOI：
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发表时间：
2007
影响因子：
1.7
通讯作者：
M. Sétamou
中科院分区：
文献类型：
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作者：
J. Patt;M. Sétamou
摘要采用新型嗅觉仪和析因实验设计，研究了视觉和嗅觉刺激对凝结平叶蝉Homalodisca coagulata Say幼、成虫寄主植物识别的相对影响。彩色、灰色和白色卡片用作视觉目标。每个卡片都连接到一个玻璃蓟管，从该管中可以闻到寄主植物的气味（来自豇豆L.）或空白，分配加湿空气。视觉+气味刺激组合在无选择测试中呈现。若虫被释放到目标下风处的一根栖木棒上。若虫对颜色+气味处理的反应通过定向行为的持续时间、在栖木上的停留时间和跳到目标的个体的百分比来测量。对该试验进行了修改，使成虫从栖木爬到目标上。成年人的反应是通过个体行为的持续时间来衡量的（例如，觅食）以及它们在目标上的位置和停留时间。观察刺激的主效应和交互效应。若虫表现出减少的方向和停留时间的彩色目标+主机气味处理和增加跳跃反应的灰色+主机气味处理。当成虫暴露于宿主气味时，觅食行为的持续时间增加，而爬行和趋光行为减少。尽管若虫和成虫对视觉刺激+空白空气处理有反应，但宿主气味增强了它们的反应。寄主气味对寄主探测行为的影响主要是增强H.对视觉线索的反应。
Abstract The relative effects of visual and olfactory stimuli on host plant detection in immature and adult Homalodisca coagulata Say (Homoptera: Cicadellidae) were studied using a novel olfactometer and factorial experimental designs. Colored, gray, and white cards were used as visual targets. Each card was attached to a glass thistle tube from which host-plant odor (from Vigna unguiculata L.) or blank, humidified air was dispensed. Visual + odor stimuli combinations were presented in no-choice tests. Nymphs were released onto a perch stick downwind from the target. Nymph response to color + odor treatments was measured by the duration of orientation behavior, residence time on the perch, and percentage of individuals that jumped to the target. The assay was modified so that adults crawled from the perch onto the target. Adult response was measured by the duration of individual behaviors (e.g., foraging) and by their position and residence time on the target. Both main effects and interactive effects of the stimuli were observed. Nymphs showed a decrease in orientation and residence times in the colored target + host odor treatments and increased jumping response in the gray + host odor treatment. When adults were exposed to host odor, the duration of foraging behavior increased, whereas crawling and phototactic behaviors decreased. Although nymphs and adults responded to visual stimuli + blank air treatments, host odor enhanced their responses. The primary effect of host odor on host detection behavior may be to enhance H. coagulata responsiveness to visual cues.