Insects from the Dermestidae family (Dermestes ater and Dermestes maculatus) are synanthropic insects, which are household, agricultural and warehouse pests. Their lipidomics and the insects’ ability to use compounds present in their bodies to protect them against pathogens are not fully understood. Therefore, the purpose of this work was to determine the composition of compounds present in the bodies of two insect species, Dermestes ater and Dermestes maculatus, by the MALDI technique. Several free fatty acids and acylglycerols were found to be present as a result of the research. Significant differences in the composition and number of identified compounds have been shown, depending on the tested species and on the development stage. In lipids of D. ater, a greater variety of free fatty acids were found than in those of the second species. Biological studies have determined the high resistance of both species of Dermestidae to fungal infection with Conidiobolus coronatus. These results provide baseline data for further studies on the possible role of lipids.

中文翻译：

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Dermestes ater和Dermestes maculatus不同发育阶段的脂质组成及其对昆虫病原真菌Conidiobolus coronatus的易感性

来自 Dermestidae 科的昆虫（Dermestes ater 和 Dermestes maculatus）是同源昆虫，它们是家庭、农业和仓库害虫。它们的脂质组学和昆虫利用它们体内存在的化合物来保护它们免受病原体侵害的能力尚不完全清楚。因此，这项工作的目的是通过 MALDI 技术确定存在于两种昆虫物种 Dermestes ater 和 Dermestes maculatus 体内的化合物的组成。研究结果发现存在几种游离脂肪酸和酰基甘油。已显示出已识别化合物的组成和数量存在显着差异，具体取决于测试物种和发育阶段。在 D. ate 的脂质中，发现的游离脂肪酸种类比第二种的种类更多。生物学研究已确定两种皮蠹科对真菌感染 Conidiobolus coronatus 具有高度抵抗力。这些结果为进一步研究脂质的可能作用提供了基线数据。