Gut symbiotic bacteria enhance reproduction in Spodoptera frugiperda (J.E. Smith) by regulating juvenile hormone III and 20-hydroxyecdysone pathways DOI Creative Commons
Bo Chu,

Shishuai Ge,

Wei He

и другие.

Microbiome, Год журнала: 2025, Номер 13(1)

Опубликована: Май 23, 2025

The insect gut microbiota forms a complex, multifunctional system that significantly affects phenotypic traits linked to environmental adaptation. Strong reproductive potential underpins the migratory success, population growth and destructive impact of fall armyworm, Spodoptera frugiperda (J.E. Smith). However, precise role bacteria in S. processes, distribution transmission dynamics remains unclear. We examined major invasive agricultural pest, identifying Enterococcus, Enterobacter, Klebsiella as core microorganisms present throughout its life cycle. These microbes showed heightened activity during egg stage, early larval stages pre-oviposition period females. Using an axenic re-infection system, Enterococcus quebecensis FAW181, michiganensis FAW071 Enterobacter hormaechei FAW049 were found enhance host fecundity, increasing production by 62.73%, 59.95%, 56.71%, respectively. Metagenomic haemolymph metabolomic analyses revealed positive correlation between symbiotic hormone metabolism female frugiperda. Further analysis metabolites biosynthesis pathway, along with exogenous injection juvenile III 20-hydroxyecdysone, regulate these hormones, maintaining levels equivalent those control insects. This regulation supports improved fecundity frugiperda, aiding rapid colonization expansion. findings emphasize pivotal E. FAW049, K. enhancing reproduction modulating JH through JHAMT concurrently 20E precursors via PHM. Our results provide novel insights into microbe-host symbiosis pest management strategies for alien species. Video Abstract.

Язык: Английский

Gut symbiotic bacteria enhance reproduction in Spodoptera frugiperda (J.E. Smith) by regulating juvenile hormone III and 20-hydroxyecdysone pathways DOI Creative Commons
Bo Chu,

Shishuai Ge,

Wei He

и другие.

Microbiome, Год журнала: 2025, Номер 13(1)

Опубликована: Май 23, 2025

The insect gut microbiota forms a complex, multifunctional system that significantly affects phenotypic traits linked to environmental adaptation. Strong reproductive potential underpins the migratory success, population growth and destructive impact of fall armyworm, Spodoptera frugiperda (J.E. Smith). However, precise role bacteria in S. processes, distribution transmission dynamics remains unclear. We examined major invasive agricultural pest, identifying Enterococcus, Enterobacter, Klebsiella as core microorganisms present throughout its life cycle. These microbes showed heightened activity during egg stage, early larval stages pre-oviposition period females. Using an axenic re-infection system, Enterococcus quebecensis FAW181, michiganensis FAW071 Enterobacter hormaechei FAW049 were found enhance host fecundity, increasing production by 62.73%, 59.95%, 56.71%, respectively. Metagenomic haemolymph metabolomic analyses revealed positive correlation between symbiotic hormone metabolism female frugiperda. Further analysis metabolites biosynthesis pathway, along with exogenous injection juvenile III 20-hydroxyecdysone, regulate these hormones, maintaining levels equivalent those control insects. This regulation supports improved fecundity frugiperda, aiding rapid colonization expansion. findings emphasize pivotal E. FAW049, K. enhancing reproduction modulating JH through JHAMT concurrently 20E precursors via PHM. Our results provide novel insights into microbe-host symbiosis pest management strategies for alien species. Video Abstract.

Язык: Английский

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