| 赵 丽，张 蕊，孙 国，江 峰，闫京艳,,高原驯养过程中黑水虻肠道微生物差异研究[J].环境昆虫学报,(): |
| 高原驯养过程中黑水虻肠道微生物差异研究 |
| Study on the differences in gut microbiota of Hermetia illucens during high-altitude domestication |
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| DOI： |
| 中文关键词: 肠道微生物 高海拔适应 多样性和功能差异 代谢 免疫 |
| 英文关键词:Gut microbiota high altitude adaption diversity and functional differences metabolism immunity |
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| 中文摘要: |
| 研究发现黑水虻Hermetia illucens（双翅目：水虻科）的肠道菌群在黑水虻营养代谢和生理行为中起着至关重要的作用，但肠道菌群在其高原适应中的变化和作用尚不清楚。为了研究肠道微生物在黑水虻高海拔适应中的作用，本研究利用16S rRNA测序技术分析了低海拔地区黑水虻种群以及转移至高原驯养传代后黑水虻种群的肠道微生物群的多样性和功能差异。本研究结果揭示了低海拔黑水虻幼虫和高海拔驯养传代黑水虻肠道微生物群群落结构的显著差异。值得注意的是，肠球菌和厌氧单胞菌等菌属在高海拔处理组更为丰富，而致病菌主要存在于低海拔处理组中。在高海拔地区，肠道微生物群在碳水化合物代谢、聚糖生物合成和代谢方面的功能较强，而其他代谢途径的活性降低。本研究结果表明，将低海拔黑水虻种群转移至高海拔地区饲养驯化时，黑水虻生理状态改变可能导致其肠道菌群变化。黑水虻通过降低代谢和增强免疫功能来应对高海拔环境应激。 |
| 英文摘要: |
| Research has shown that the gut microbiota of the black soldier fly, Hermetia illucens (Diptera: Stratiomyidae), plays a crucial role in its nutritional metabolism and physiological behavior. However, the specific alterations and contributions of the gut microbiota during the black soldier fly's adaptation to high-altitude environments remain unclear. To investigate the role of gut microbiota in the high-altitude adaptation of the black soldier fly, this study employed 16S rRNA sequencing technology to assess the diversity and functional variations of the gut microbial communities in populations from low-altitude regions compared to those that were subsequently transferred and domesticated at high altitudes. This finding revealed significant differences in the community structure of the gut microbiota between low-altitude larvae and their high-altitude domesticated counterparts. Notably, genera such as Enterococcus and Clostridium were more prominent in the high-altitude treatment group, while pathogenic bacteria were primarily observed in the low-altitude group. In high-altitude environments, the gut microbiota exhibited enhanced functionality in carbohydrate metabolism, polysaccharide biosynthesis, and general metabolism; however, the activity of other metabolic pathways was reduced. The results suggested that the physiological changes experienced by black soldier flies during their transition from low-altitude to high-altitude regions for domestication may result in significant alterations to their gut microbiota. Furthermore, the black soldier fly appears to mitigate high-altitude environmental stress by lowering its metabolism and enhancing its immune function. |
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