Bees just wanna have fungi: a review of bee associations with nonpathogenic fungi

FEMS Microbiology Ecology, Год журнала: 2023, Номер 99(8)

Опубликована: Июль 7, 2023

Abstract Bee–fungus associations are common, and while most studies focus on entomopathogens, emerging evidence suggests that bees associate with a variety of symbiotic fungi can influence bee behavior health. Here, we review nonpathogenic fungal taxa associated different species bee-related habitats. We synthesize results examining effects behavior, development, survival, fitness. find communities differ across habitats, some groups restricted mostly to flowers (Metschnikowia), others present almost exclusively in stored provisions (Zygosaccharomyces). Starmerella yeasts found multiple habitats association many species. Bee widely the abundance identity hosted. Functional suggest affect foraging, pathogen interactions, though few have been examined this context. Rarely, obligately beneficial symbionts bees, whereas facultative associates unknown or ecologically contextual effects. Fungicides reduce alter potentially disrupting bee–fungi associations. recommend future study non-honeybee examine life stages document composition, abundance, mechanistic bees.

Язык: Английский

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Cladosporium—Insect Relationships

Journal of Fungi, Год журнала: 2024, Номер 10(1), С. 78 - 78

Опубликована: Янв. 19, 2024

The range of interactions between

Язык: Английский

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Glyphosate and a glyphosate-based herbicide affect bumblebee gut microbiota

FEMS Microbiology Ecology, Год журнала: 2023, Номер 99(7)

Опубликована: Июнь 14, 2023

Pollinator decline is one of the gravest challenges facing world today, and overuse pesticides may be among its causes. Here, we studied whether glyphosate, world's most widely used pesticide, affects bumblebee gut microbiota. We exposed diet to glyphosate a glyphosate-based herbicide quantified microbiota community shifts using 16S rRNA gene sequencing. Furthermore, estimated potential sensitivity bee microbes based on previously reported presence target enzyme. Glyphosate increased, whereas decreased diversity, indicating that negative effects are attributable co-formulants. Both treatments significantly relative abundance potentially glyphosate-sensitive bacterial species Snodgrasella alvi. However, Candidatus Schmidhempelia genera increased in bumblebees treated with glyphosate. Overall, 50% detected were classified as resistant while 36% sensitive. Healthy core have been shown protect bees from parasite infections, change metabolism, decrease mortality. Thus, heavy use herbicides implications ecosystems.

Язык: Английский

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Combined effects of spinetoram and Microcystis aeruginosa on Daphnia pulex offspring: Maternal effects and multigenerational implications

Chemosphere, Год журнала: 2024, Номер 352, С. 141376 - 141376

Опубликована: Фев. 3, 2024

Язык: Английский

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Assessment of Lambda-Cyhalothrin and Spinetoram Toxicity and Their Effects on the Activities of Antioxidant Enzymes and Acetylcholinesterase in Honey Bee (Apis mellifera) Larvae

Insects, Год журнала: 2024, Номер 15(8), С. 587 - 587

Опубликована: Авг. 1, 2024

Honeybees play a crucial role as agricultural pollinators and are frequently exposed to various pollutants, including pesticides. In this study, we aimed evaluate the toxicity of lambda-cyhalothrin (LCY) spinetoram (SPI) in honey bee larvae reared vitro through single (acute) repeated (chronic) exposure. The acute LD50 values for LCY SPI were 0.058 (0.051–0.066) 0.026 (0.01–0.045) μg a.i./larva, respectively. chronic exposure, 0.040 (0.033–0.046) 0.017 (0.014–0.019) no-observed-effect dose was 0.0125 a.i./larva. Adult deformation rates exceeded 30% all treatment groups, showing statistically significant differences compared solvent control group (SCG). Similarly, SPI-treated bees exhibited significantly more deformities than SCG. Furthermore, examined activities several enzymes, namely, acetylcholinesterase (AChE), glutathione-S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), larvae, pupae, newly emerged after exposure at larval stage (honey LD50, LD50/10 (1/10th LD50), LD50/20 (1/20th LD50)). induced changes detoxification antioxidative (SOD CAT), signaling enzymes (AChE) during developmental stages (larvae, adults) sublethal residue levels. Our results indicate that may affect development alter activity associated with oxidative stress, detoxification, neurotransmission. These highlight potential risks pose health normal bees.

Язык: Английский

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Glyphosate and spinetoram alter viral communities with different effects on antibiotic resistance genes in the bumblebee gut

Journal of Environmental Management, Год журнала: 2025, Номер 374, С. 124079 - 124079

Опубликована: Янв. 10, 2025

Язык: Английский

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History and future perspectives of spinosad for mosquito control

Pest Management Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Abstract Since the initial discovery of soil‐dwelling actinomycete Saccharopolyspora spinosa in 1982, its metabolites spinosyns and modified spinosoids have been developed to control a wide variety arthropod pests economic importance. The most intensively studied are spinosad consisting natural spinosyn A D, as well spinetoram comprising J L. unique mode‐of‐action, high bioactivity generally benign environmental safety profile add significant value this class pesticides origin. Currently, products based on available >85 countries since global registration 1996. In US, found >80 registered pesticide products, mostly being used agricultural crops, ornamental plants, stored grains, urban environments, pets. Some approved for use organic farming. earliest recognition mosquito 2000s, numerous customized formulations controlling different species diverse habitats. Thus far, satisfactory bioactivities effectiveness against mosquitoes by documented worldwide. At same time, concerns over nontarget aquatic invertebrate fauna gradually emerged when considering relatively selective pesticide. Resistance cross‐resistance following repeated applications, their management pressing concern. © 2025 Society Chemical Industry.

Язык: Английский

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No impacts of glyphosate or Crithidia bombi, or their combination, on the bumblebee microbiome

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Июнь 2, 2023

Pesticides are recognised as a key threat to pollinators, impacting their health in many ways. One route through which pesticides can affect pollinators like bumblebees is the gut microbiome, with knock-on effects on immune system and parasite resistance. We tested impacts of high acute oral dose glyphosate microbiome buff tailed bumblebee (Bombus terrestris), glyphosate's interaction (Crithidia bombi). used fully crossed design measuring bee mortality, intensity bacterial composition estimated from relative abundance 16S rRNA amplicons. found no impact either glyphosate, C. bombi, or combination any metric, including composition. This result differs studies honeybees, have consistently an potentially explained by use exposure, rather than chronic difference test species. Since A. mellifera model species represent more broadly risk assessment, our results highlight that caution needed extrapolating other

Язык: Английский

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Insect α-Amylases and Their Application in Pest Management

Molecules, Год журнала: 2023, Номер 28(23), С. 7888 - 7888

Опубликована: Дек. 1, 2023

Amylase is an indispensable hydrolase in insect growth and development. Its varied enzymatic parameters cause insects to have strong stress resistance. gene replication a very common phenomenon insects, different copies of amylase genes enable changes its location function. In addition, the classification, structure, interaction between inhibitors amylases also invoked attention researchers. Some plant-derived inhibitory activities against even mammalian amylases. recent years, increasing number studies clarified effects pesticides on activity target non-target pests, which provides theoretical basis for exploring safe efficient pesticides, while exact lethal mechanisms safety field applications remain unclear. Here, we summarize most advances studies, including sequence characteristics regulation (α-AIs). Importantly, application as nanocide trigger, RNAi, or other kinds pesticide targets will be discussed. A comprehensive foundation provided applying development new-generation management tools improving specificity, stability, pesticides.

Язык: Английский

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Gut microbiome helps honeybee (Apis mellifera) resist the stress of toxic nectar plant (Bidens pilosa) exposure: Evidence for survival and immunity

Environmental Microbiology, Год журнала: 2023, Номер 25(10), С. 2020 - 2031

Опубликована: Июнь 8, 2023

Abstract Honeybee ( Apis mellifera ) ingestion of toxic nectar plants can threaten their health and survival. However, little is known about how to help honeybees mitigate the effects plant poisoning. We exposed different concentrations Bidens pilosa flower extracts found that B. exposure significantly reduced honeybee survival in a dose‐dependent manner. By measuring changes detoxification antioxidant enzymes gut microbiome, we superoxide dismutase, glutathione‐S‐transferase carboxylesterase activities were activated with increasing changed structure causing significant reduction abundance Bartonella p < 0.001) an increase Lactobacillus . Importantly, by using Germ‐Free bees, colonization microbes apis Apilactobacillus kunkeei (original classification as increased resistance upregulated bee‐associated immune genes. These results suggest systems possess level A. may augment stress improving host immunity.

Язык: Английский

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