Gut microbiota facilitate adaptation of invasive moths to new host plants

The ISME Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 1, 2024

Abstract Gut microbiota are important in the adaptation of phytophagous insects to their plant hosts. However, interaction between gut microbiomes and pioneering populations invasive during new hosts, particularly initial phases invasion, has been less studied. We studied contribution microbiome host globally recognized pest, Hyphantria cunea, as it expands its range into southern China. The population H. cunea shows effective Metasequoia glyptostroboides exhibits greater larval survival on than original population. Genome resequencing revealed no significant differences functions related two populations. compatibility M. a correlation abundance several bacteria genera (Bacteroides, Blautia, Coprococcus) survival. Transplanting from northern enhanced adaptability latter previously unsuitable glyptostroboides. This research provides evidence that can enhance pests hosts enable more rapid habitats.

Язык: Английский

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Gut bacteria of lepidopteran herbivores facilitate digestion of plant toxins

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(42)

Опубликована: Окт. 11, 2024

Lepidopterans commonly feed on plant material, being the most significant insect herbivores in nature. Despite resistance to herbivory, such as producing toxic secondary metabolites, have developed mechanisms encoded their genomes tolerate or detoxify defensive compounds. Recent studies also highlight role of gut microbiota mediating detoxification herbivores; however, convincing evidence supporting contribution symbionts is rare Lepidoptera. Here, we show that growth various lepidopteran species was inhibited by a mulberry-derived metabolite, 1-deoxynojirimycin (DNJ); expected, specialist silkworm Bombyx mori grew well, but interestingly, early-instar silkworms affected DNJ level, and several bacterial responded positively enriched DNJ. Among these, strain isolated from ( Pseudomonas fulva ZJU1) can degrade utilize sole energy source, after inoculation into nonspecialists (e.g., beet armyworm Spodoptera exigua ), P. ZJU1 increased host significantly promoted growth. We used genomic transcriptomic analyses identify genes potentially involved degradation, CRISPR-Cas9-mediated mutagenesis verified function ilvB , key binding protein, metabolizing Furthermore, deletion mutant, exhibiting normal growth, could no longer enhance nonspecialist performance, degradation vivo. Therefore, our study demonstrated causality between microbiome chemical defense Lepidoptera, facilitating mechanistic understanding host–microbe relationships across this complex, abundant group.

Язык: Английский

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Primer selection impacts the evaluation of microecological patterns in environmental microbiomes

iMeta, Год журнала: 2023, Номер 2(4)

Опубликована: Сен. 17, 2023

This study revealed that primer selection substantially influences the taxonomic and predicted functional composition characterization of microecological patterns, which was not alleviated by close-reference clustering. Biases were relatively consistent across different habitats in community profiling but patterns. These biases could be attributed to multiple aspects, including taxa specificity, regional hypervariability, amplification efficiency.

Язык: Английский

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The humoral immune response of the lepidopteran model insect, silkworm Bombyx mori L., to microbial pathogens

Current Research in Insect Science, Год журнала: 2024, Номер 6, С. 100097 - 100097

Опубликована: Янв. 1, 2024

Язык: Английский

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Enhanced bioaccumulation and toxicity of Fenpropathrin by polystyrene nano(micro)plastics in the model insect, silkworm (Bombyx mori)

Journal of Nanobiotechnology, Год журнала: 2025, Номер 23(1)

Опубликована: Янв. 23, 2025

Nano(micro)plastics (NMPs) and agrochemicals are ubiquitous pollutants. The small size physicochemical properties of NMPs make them potential carriers for pollutants, affecting their bioavailability impact on living organisms. However, little is known about interactions in terrestrial ecosystems. This study investigates the adsorption Fenpropathrin (FPP) onto two different sizes polystyrene examines impacts an insect model, silkworm Bombyx mori. We analyzed systemic effects acute exposure to FPP, individually combined, at organismal, tissue, cellular, gut microbiome levels. Our results showed that can adsorb with smaller particles having higher capacity, leading size-dependent increases bioaccumulation toxicity FPP. These led mortality, reduced body weight, delayed development, decreased cocoon production silkworms. Additionally, pollutants caused physical oxidative damage midgut altered gene expression related juvenile hormone (JH) silk protein synthesis. analysis revealed significant changes abundance potentially beneficial bacteria. Thus, aggravated induced by was size-dependent, (NPs) a greater impact. demonstrates role as contaminants, increasing findings have implications ecosystem health biodiversity.

Язык: Английский

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Effects of baculovirus-killed cadavers on plant defenses and insect behavior

Arthropod-Plant Interactions, Год журнала: 2025, Номер 19(1)

Опубликована: Янв. 28, 2025

Язык: Английский

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The role of host plants in driving pathogen susceptibility in insects through chemicals, immune responses and microbiota

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

In this comprehensive exploration, we delve into the pivotal role of host plants in shaping intricate interactions between herbivorous insects and their pathogens. Recent decades have seen a surge studies that demonstrate are crucial drivers pathogens, providing novel insights direct indirect shape tri-trophic interactions. These built on wide range from viruses to bacteria, protozoans fungi. We summarise these studies, discuss mechanisms plant-mediated insect resistance infection, ranging toxicity plant chemicals pathogens enhancement anti-pathogen immune responses, modulation insect's microbiome. Although provide evidence for roles all mechanisms, also point out majority existing phenomenological, describing patterns without addressing underlying mechanisms. To further our understanding interactions, therefore urge researchers design enable them specifically distinguish by which affect susceptibility

Язык: Английский

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The host phylogeny and climate determine the gut bacteria of global insects

The Science of The Total Environment, Год журнала: 2025, Номер 966, С. 178812 - 178812

Опубликована: Фев. 1, 2025

Язык: Английский

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Gut bacteria in potato tuberworm (Phthorimaea operculella) populations are dominated by Enterococcus spp. and these play a significant role in carbohydrate metabolism and host growth

Journal of Pest Science, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Язык: Английский

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Gut bacteria mediated adaptation of diamondback moth, Plutella xylostella, to secondary metabolites of host plants

mSystems, Год журнала: 2023, Номер 8(6)

Опубликована: Ноя. 1, 2023

In this study, we identify an important role of gut bacteria in mediating the adaptation diamondback moth (DBM) to plant secondary metabolites. We demonstrate that kaempferol's presence radish seedlings greatly reduces fitness DBM with depleted biota. Reinstatement biota, particularly Enterobacter sp. EbPXG5, improved insect performance by degrading kaempferol. This bacterium was common larval DBM, lining epithelium as a protective film. Our work highlights symbiotic herbivore defenses and provides practical mechanistic framework for developing more comprehensive understanding insect-gut microbe-host co-evolution.

Язык: Английский

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