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Research progress in the diversity, functions, and applications of lactic acid bacteria in insect guts
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Tairu ZENG1, Xinya YANG1, Jianlong ZHANG2, Qiuxu LIU3, Cai WANG1
Acta Microbiologica Sinica | 2026, 66(5) : 2072 - 2090
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Acta Microbiologica Sinica | 2026, 66(5): 2072-2090
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Research progress in the diversity, functions, and applications of lactic acid bacteria in insect guts
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Tairu ZENG1, Xinya YANG1, Jianlong ZHANG2, Qiuxu LIU3, Cai WANG1
Affiliations
  • 1.College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong, China
  • 2.National Key Laboratory for Prevention and Control of Western Forest Biological Disasters, National Forestry and Grassland Administration, Northwest A&F University, Yangling, Shaanxi, China
  • 3.Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan, China
Published: 2026-05-04 doi: 10.13343/j.cnki.wsxb.20250723
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As a crucial group of probiotics, lactic acid bacteria (LAB) play a vital role in the gut microbial ecosystem of insects. This article comprehensively reviewed the species composition, ecological functions, and practical values of LAB in the guts of major insect orders, including Hymenoptera, Diptera, Coleoptera, Hemiptera, Lepidoptera, Blattodea, and Orthoptera. To date, multiple LAB genera including Lactobacillus, Lactococcus, Leuconostoc, Pediococcus, Enterococcus, Bifidobacterium, and Weissella were successfully identified from insect guts. The community composition of these bacteria was shaped by factors such as host phylogeny, dietary traits, developmental stages, gut microenvironment, and external ecological conditions. The LAB in insect guts not only assist the hosts in degrading recalcitrant complexes by secreting extracellular enzymes but also inhibit pathogens through the synthesis of antimicrobial substances such as bacteriocins. Additionally, they modulate host immune responses, promote growth and development, regulate host behavior, and participate in the metabolic detoxification of xenobiotics, thereby enhancing host survival and adaptability. Furthermore, insect-derived LAB held great potential in the production of resource insects, pest management, agricultural waste utilization, and green manufacturing. In summary, insect guts represent an important reservoir for the discovery and isolation of novel LAB.

insect microbiota  /  gut symbionts  /  immune modulation  /  antagonism against pathogens  /  probiotic potential
Tairu ZENG, Xinya YANG, Jianlong ZHANG, Qiuxu LIU, Cai WANG. Research progress in the diversity, functions, and applications of lactic acid bacteria in insect guts[J]. Acta Microbiologica Sinica, 2026 , 66 (5) : 2072 -2090 . DOI: 10.13343/j.cnki.wsxb.20250723
Funding
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  • The National Natural Science Foundation of China(31500530)
Appendix
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Year 2026 volume 66 Issue 5
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Article Info
doi: 10.13343/j.cnki.wsxb.20250723
  • Receive Date：2025-09-24
  • Online Date：2026-05-09
  • Published：2026-05-04
Article Data
Affiliations
History
  • Received：2025-09-24
  • Accepted：2025-12-30
Funding
The National Natural Science Foundation of China(31500530)
Affiliations
    1.College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong, China
    2.National Key Laboratory for Prevention and Control of Western Forest Biological Disasters, National Forestry and Grassland Administration, Northwest A&F University, Yangling, Shaanxi, China
    3.Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan, China

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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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