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Review
. 2024 Oct;80(10):4828-4840.
doi: 10.1002/ps.8261. Epub 2024 Jun 17.

Functions and regulations of insect gut bacteria

Shuncai Han  1   2   3   4 , Muhammad Rehan Akhtar  1   2   3   4 , Xiaofeng Xia  1   2   3   4
Affiliations
Review

Functions and regulations of insect gut bacteria

Shuncai Han et al. Pest Manag Sci. 2024 Oct.

Abstract

The insect gut is a complicated ecosystem that inhabits a large number of symbiotic bacteria. As an important organ of the host insect, the symbiotic bacteria of the insect gut play very important roles in regulating physiological and metabolic processes. Recently, much progress has been made in the study of symbiotic bacteria in insect guts with the development of high-throughput sequencing technology and molecular biology. This review summarizes the primary functions of symbiotic bacteria in insect guts, such as enhancing insecticide resistance, facilitating food digestion, promoting detoxification, and regulating mating behavior and egg hatching. It also addresses some possible pathways of gut bacteria symbiont regulation governed by external habitats, physiological conditions and immunity of the host insect. This review provides solid foundations for further studies on novel theories, new technologies and practical applications of symbiotic bacteria in insect guts. © 2024 Society of Chemical Industry.

Keywords: gut bacterial symbionts; hologenome; host plant specialization; immunity; insecticide resistance.

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References

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