实蝇肠杆菌科共生菌的研究进展

实蝇与体内微生物的共生关系是目前较受关注的研究课题。其中,肠杆菌科细菌是这些内共生微生物中的重要一类,广泛存在于实蝇肠道和生殖系统中。研究证明,共生肠杆菌科细菌在参与实蝇的碳氮循环、营养代谢、生殖免疫及生物防治等方面都发挥着极大的作用。近年来,人们利用分子生物学技术已鉴定出部分实蝇内共生肠杆菌科细菌的类群,发现许多优势的益生肠杆菌种和代谢产物,它们能增强实蝇的健康,提高昆虫不育技术的应用高效性。本文对实蝇共生肠杆菌科细菌的种类、分布和作用,以及它们在不育昆虫技术中的应用进展作一综述,这不仅有助于人们更深入地了解宿主与共生菌群落间的互作关系,而且对人类开发新型实蝇防治饵剂以及将此类共生益生菌应用于实蝇不育技术有重要意义。

Advance on the study of symbiotic enterobacteria in fruit flies

The symbiotic relationship between fruit flies and microorganisms has been a research focus at present. The Enterobacteriaceae are an especially important family of these symbiotic microorganisms, widely found in the gut and reproductive system of fruit flies. They play important roles in the carbon-nitrogen cycle, nutrition, metabolism, and reproductive immunity of their fruit fly hosts. Numerous enterobacteria have been identified by molecular techniques, and several metabolic products of enterobacteria enhance fitness. These findings can improve the efficiency of sterile insect technique (SIT). So, research on symbiotic enterobacteria is helpful not only to understand the interaction between fruit flies and symbionts, but also to exploit new control techniques of tephritid pests.