Bumble bee microbiota shows temporal succession and increase of lactic acid bacteria when exposed to outdoor environments

Frontiers in Cellular and Infection Microbiology, Journal Year: 2024, Volume and Issue: 14

Published: March 4, 2024

The large earth bumble bee (

Language: Английский

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Bumble bee gut microbial community structure differs between species and commercial suppliers, but metabolic potential remains largely consistent

Applied and Environmental Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

ABSTRACT Bumble bees are key pollinators for natural and agricultural plant communities. Their health performance supported by a core gut microbiota composed of few bacterial taxa. However, the taxonomic composition community structure bumble bee microbiotas can vary with species, environment, origin (i.e., whether colonies come from wild or commercial rearing facility), it is unclear metabolic capabilities therefore as well. Here we used metagenomic sequencing to examine composition, structure, potential across two different Bombus impatiens suppliers, B. , three other species sampled sites within native range all four species. We found that varied between populations origins suppliers. Notably, Apibacter consistently present in some species—suggesting may be previously unrecognized phylotype bees—and lack phylotypes populations. despite variation high-level was largely consistent hosts, including related host performance, though activity remains investigated. IMPORTANCE Our study first compare genome-level whole suppliers In addition, profiled full time. Overall, our results provide new insight into function will help researchers evaluate how well studies conducted one population translate Research on increasing relevance continue discover ways social influence health, decline abundance.

Language: Английский

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Host specificity of gut microbiota associated with social bees: patterns and processes

Microbiology and Molecular Biology Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

SUMMARYGut microbes provide benefits to some animals, but their distribution and effects across diverse hosts are still poorly described. There is accumulating evidence for host specificity (i.e., a pattern where different tend associate with distinct lineages), the causes consequences of this unclear. Combining experimental tests in laboratory broad surveys wild promising approach gaining comprehensive mechanistic understanding prevalence, origin, importance. Social bees represent an ideal testbed endeavor because they phylogenetically functionally diverse, host-specific, stable, tractable gut microbiota. Furthermore, western honeybee (Apis mellifera) emerging model system studying microbiota-host interactions. In review, we summarize data on prevalence strength social bee microbiota (bumblebees, stingless bees, honeybees), as well potential proven ecological molecular mechanisms that maintain specificity. Overall, found relatively strong likely results from several processes, including filtering mediated by immune priority effects. However, more research needed multiple species confirm these findings. To help future research, hypotheses field propose comparative tests. Finally, conclude review highlighting need understand how can influence health.

Language: Английский

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Core symbionts, age at inoculation and diet affect colonization of the bumblebee gut by a common bacterial pathogen

Journal of Animal Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Microbes shape the health of bumblebees, an important group pollinators, including species conservation concern. Most microbial research on bumblebees has focused eukaryotic and viral pathogens or core gut microbiome, a community host-specialized bacterial symbionts that helps protect hosts against pathogens. Bumblebees also harbour third class microbes: non-core bacteria, which are non-host specific vary among individuals. Understanding their functional role how they interact with is for bumblebee ecology management. We surveyed bacteria in wild workers (Bombus impatiens) conducted laboratory experiments gnotobiotic B. impatiens to examine factors shaping colonization by focal bacterium (Serratia marcescens) its consequences bee health. Non-core Serratia, frequently occur at high abundance roughly half individuals harbouring least 10% bacteria. Experiments showed Serratia marcescens better colonizes when bees inoculated early (within 1 day adult emergence) microbiome disrupted. A mixed wildflower pollen diet facilitated highest level infection compared two monofloral treatments. provide evidence pathogenic: exposing disrupted microbiomes strongly reduced lifespan and, as result, total reproduction. These results have three implications: first, widespread some opportunistic Second, plays crucial protecting these Third, timing inoculation relative age, well diet, key factor controlling pathogen gut. Overall, findings suggest could be target monitoring managing

Language: Английский

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Interplay between gut symbionts and behavioral variation in social insects

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 65, P. 101233 - 101233

Published: July 15, 2024

Social insects exhibit a high degree of intraspecific behavioral variation. Moreover, they often harbor specialized microbial communities in their gut. Recent studies suggest that these two characteristics social are interlinked: insect phenotypes affect gut microbiota composition, partly through exposure to different environments and diet, return, the has been shown influence behavior. Here, we discuss bidirectional relationship existing between variation composition insects.

Language: Английский

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A comparative genomic analysis of Fructobacillus evanidus sp. nov. from bumble bees

Systematic and Applied Microbiology, Journal Year: 2024, Volume and Issue: 47(2-3), P. 126505 - 126505

Published: March 22, 2024

Language: Английский

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Gut microbiome diversity and biogeography for Chinese bumblebee Bombus pyrosoma

mSystems, Journal Year: 2024, Volume and Issue: 9(7)

Published: June 27, 2024

Gut microbiota of the bumblebee is critical as it modulates health and fitness host. However, mechanisms underlying formation maintenance diversity gut bacteria over a long period evolution have yet to be elucidated. In particular, bacterial community assembly processes

Language: Английский

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The gut microbiome of honey-producing wasps has converged on that of social bees

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 27, 2024

ABSTRACT Honey-feeding social bees, including honey bees and bumble possess distinctive gut microbiomes that provide benefits to hosts, such as defense against pathogens parasites. Microbiome members are transmitted through interactions within colonies. The Mexican wasp ( Brachygastra mellifica) represents an independent origin of honey-storing a group Hymenoptera. Honey wasps feed on store honey, but they prey other insects protein source, do not consume pollen bees. We surveyed the across sites Texas using 16S rRNA community profiling, we estimated microbiome size qPCR. For comparison, also non-honey feeding from six families, collected in same region. found have large dominated by characteristic bacterial species, contrast wasps, which had smaller, more variable environmental bacteria. All contained strains Bifidobacterium Bombilactobacillus were closely related symbionts suggesting their acquisition via host-switching. Some individuals harbored close relative Candidatus Schmidhempelia bombi (Orbaceae), uncultured bee symbiont, again most prevalent species was Lactobacillus , L. acetotolerans potentially representing . switch feeding, combined with highly life history, appears facilitated establishment resembling those IMPORTANCE conserved among nestmates. bacteria consist host-associated benefit hosts providing parasites, contributing digestion. less studied, although some solitary Here, looked at diet much like predicting nectar stored available year-round enabled them acquire honey-feeding spp.) only honey. Their nests made paper, colonies survive for several years. similarities Several host switching. common member previously unknown Solitary paper make smaller bacteria, has shaped communities wasps.

Language: Английский

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The Gut Microbiome of Two Wild Bumble Bee Species Native of South America: Bombus pauloensis and Bombus bellicosus

Microbial Ecology, Journal Year: 2024, Volume and Issue: 87(1)

Published: Sept. 28, 2024

Language: Английский

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Insect immunity in the Anthropocene

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

ABSTRACT Anthropogenic activities result in global change, including climate landscape degradation and pollution, that can alter insect physiology immune defences. These changes may have contributed to decline the dynamics of insect‐transmitted diseases. The ability insects mount responses upon infection is crucial for defence against pathogens parasites. Suppressed defences reduce fitness by causing disease‐driven mortality elevated energy available invest other traits such as reproduction. Understanding impact anthropogenic factors on insect–pathogen interactions therefore key determining contribution change pathogen‐driven emergence transmission insect‐borne Here, we synthesise evidence immunity. We found factors, insecticides heavy metals, directly impacting inhibiting activation pathways. Alternatively, warming, heatwaves, CO 2 indirectly via reducing function. further review how pathogen clearance contribute an increase vector‐borne discuss cost reduced reproductive output this species extinction. most research has determined a single factor or resistance. recommend studying combined multiple stressors response resistance understand better affect conclude highlighting importance initiatives mitigate immunity, spread diseases, protect vulnerable ecosystems from emerging

Language: Английский

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