Department of Entomology, Pennsylvania State University, University Park, PA 16802, United States.
Department of Entomology, Pennsylvania State University, University Park, PA 16802, United States.
Curr Opin Insect Sci. 2017 Feb;19:61-69. doi: 10.1016/j.cois.2017.01.002. Epub 2017 Feb 7.
Lepidoptera herbivores deposit copious amounts of saliva when feeding. Their saliva is produced by the paired mandibular and labial glands and evidence indicates that it may play an important role in allowing an herbivore to establish on its host plant. Genomic studies of Lepidoptera saliva are beginning to reveal the role of saliva in herbivory. Molecules involved in digestion, detoxification, immunity, defense against plant secondary chemicals, chemoreception and so on have been identified using high throughput genomic tools. These genomic tools have also revealed changes that occur in Lepidoptera saliva when caterpillars feed on different host plants. However, there are other factors either biotic or abiotic (e.g., larval stage, larval health, temperature, water stress, etc.) that might also affect its composition. Though further functional and ecological studies are still necessary to fully understand the role of Lepidoptera saliva on herbivory, here we review current trends.
鳞翅目食草动物在进食时会分泌大量唾液。它们的唾液由成对的下颚和唇腺产生，有证据表明，唾液可能在食草动物在其寄主植物上立足方面发挥着重要作用。对鳞翅目唾液的基因组研究开始揭示唾液在取食中的作用。使用高通量基因组工具鉴定了参与消化、解毒、免疫、防御植物次生化学物质、化学感受等的分子。这些基因组工具还揭示了当毛毛虫以不同的寄主植物为食时，鳞翅目唾液中发生的变化。然而，还有其他因素（生物或非生物因素，例如幼虫阶段、幼虫健康状况、温度、水分胁迫等）也可能影响其组成。尽管还需要进一步的功能和生态研究来充分了解鳞翅目唾液在取食中的作用，但这里我们回顾了当前的趋势。
