Effects of microbial symbionts on lipid metabolism in insects

Abstract:

Interactions between microbial symbionts and insects are essential for the growth, development, and reproduction of insects. This review focuses on how microbial symbionts regulate lipid metabolism in insects via signaling pathways. Microbial symbionts affect lipid metabolism in insects through a variety of mechanisms. Microbial symbionts provide lipids or lipid precursors such as steroids to their insect hosts. Microbial symbionts can also modulate host insulin signaling pathway by producing short-chain fatty acids or activating immune signaling pathways, thereby changing the lipid content of insects. In addition, microbial symbionts can activate target of rapamycin and adipokinetic hormone signaling pathways to regulate lipid metabolism in insects. Further research in the similarities and differences of these signaling pathways in different insect species is of great significance for comprehension of insect ecological adaptability and reproductive strategies, and development of new pest management strategies.