Amending soil with insect exuviae improves herbivore tolerance, pollinator attraction and seed yield of Brassica nigra plants

Barragán-Fonseca, Katherine Y.; Greenberg, Liana O.; Gort, Gerrit; Dicke, Marcel; Loon, J.J.A. van

doi:10.1016/j.agee.2022.108219

Cited by 7 publications

(13 citation statements)

References 49 publications

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“…In a previous study, we observed that plants growing in soil amended with BSF exuviae were visited more frequently by insect pollinators compared to flowers of control plants. This effect was independent of herbivory (Barragán‐Fonseca et al, 2023 ). In the present study, we also explored the effects of mealworm and house cricket exuviae, which showed different effects on the VOCs depending on the treatment (Figure 6 , Supporting Information: Table S2 ).…”

Section: Discussionmentioning

confidence: 97%

“…Additionally, even with a low number of pollinators, a large number of flowers can increase plant reproductive success by increasing the availability of pollen thereby enhancing pollen transfer efficiency (Motzke et al, 2015). In B. nigra, visual and chemical cues of flowering plants influence the behaviour of different pollinator species (Barragán-Fonseca et al, 2020). The syrphid fly Episyrphus balteatus and the butterfly P. brassicae, reported insect pollinators of brassicaceous species, exhibited a strong bias for visual cues over volatile chemical cues when both cues were offered separately; however, insect pollinators exploit visual and odour information simultaneously, thus visual and chemical plant traits both contribute to foraging pollinator preferences (Milet-Pinheiro et al, 2012;Raguso & Willis, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…These flower traits have been found to be good predictors for the number of visits by insect pollinators (Kuppler et al, 2021 ; Salisbury et al, 2015 ). By altering plant traits attractive to pollinators in response to soil amendment with insect exuviae, plants may alter pollinator attraction and subsequently impact seed production (Barragán‐Fonseca et al, 2023 ).…”

Section: Discussionmentioning

confidence: 99%

“…OPLS-DA, orthogonal partial least squares-discriminant analysis. attraction and subsequently impact seed production (Barragán-Fonseca et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

“…However, the indirect interactions between belowground and aboveground organisms via changes in floral traits are understudied (Barber & Soper Gorden, 2014 ). Recently, we showed that amending soil with Hermetia illucens exuviae can alter plant traits, such as plant size and flower abundance, with consequences for insect pollinators and seed production (Barragán‐Fonseca et al, 2023 ). However, it remains unexplored whether soil amendment with insect residual streams affects specific floral traits that are used by insect pollinators when foraging for floral resources.…”

Section: Introductionmentioning

confidence: 99%

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Insect exuviae as soil amendment affect flower reflectance and increase flower production and plant volatile emission

Barragán-Fonseca

Rusman

Mertens

et al. 2022

Plant Cell & Environment

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Soil composition and herbivory are two environmental factors that can affect plant traits including flower traits, thus potentially affecting plant–pollinator interactions. Importantly, soil composition and herbivory may interact in these effects, with consequences for plant fitness. We assessed the main effects of aboveground insect herbivory and soil amendment with exuviae of three different insect species on visual and olfactory traits of Brassica nigra plants, including interactive effects. We combined various methodological approaches including gas chromatography/mass spectrometry, spectroscopy and machine learning to evaluate changes in flower morphology, colour and the emission of volatile organic compounds (VOCs). Soil amended with insect exuviae increased the total number of flowers per plant and VOC emission, whereas herbivory reduced petal area and VOC emission. Soil amendment and herbivory interacted in their effect on the floral reflectance spectrum of the base part of petals and the emission of 10 VOCs. These findings demonstrate the effects of insect exuviae as soil amendment on plant traits involved in reproduction, with a potential for enhanced reproductive success by increasing the strength of signals attracting pollinators and by mitigating the negative effects of herbivory.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…OPLS-DA, orthogonal partial least squares-discriminant analysis. attraction and subsequently impact seed production (Barragán-Fonseca et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Insect exuviae as soil amendment affect flower reflectance and increase flower production and plant volatile emission

Barragán-Fonseca

Rusman

Mertens

et al. 2022

Plant Cell & Environment

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View full text Add to dashboard Cite

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Insect–microbe interactions and their influence on organisms and ecosystems

Holt,

Cavichiolli de Oliveira,

Medina

et al. 2024

Ecology and Evolution

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Microorganisms are important associates of insect and arthropod species. Insect‐associated microbes, including bacteria, fungi, and viruses, can drastically impact host physiology, ecology, and fitness, while many microbes still have no known role. Over the past decade, we have increased our knowledge of the taxonomic composition and functional roles of insect‐associated microbiomes and viromes. There has been a more recent shift toward examining the complexity of microbial communities, including how they vary in response to different factors (e.g., host genome, microbial strain, environment, and time), and the consequences of this variation for the host and the wider ecological community. We provide an overview of insect–microbe interactions, the variety of associated microbial functions, and the evolutionary ecology of these relationships. We explore the influence of the environment and the interactive effects of insects and their microbiomes across trophic levels. Additionally, we discuss the potential for subsequent synergistic and reciprocal impacts on the associated microbiomes, ecological interactions, and communities. Lastly, we discuss some potential avenues for the future of insect‐microbe interactions that include the modification of existing microbial symbionts as well as the construction of synthetic microbial communities.

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Construction of a beneficial microbes‐enriched rhizosphere system assists plants in phytophagous insect defense: current status, challenges and opportunities

Liu,

Xia,

Tan

et al. 2024

Pest Management Science

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The construction of a plant rhizosphere system enriched with beneficial microbes (BMs) can efficiently help plants defend against phytophagous insects. However, our comprehensive understanding of this approach is still incomplete. In this review, we methodically analyzed the progress made over the last decade, identifying both challenges and opportunities. The main methods for developing a BMs‐enriched rhizosphere system include inoculating exogenous BMs into plants, amending the existing soil microbiomes with amendments, and utilizing plants to shape the soil microbiomes. BMs can assist plants in suppressing phytophagous insects across many orders, including 13 Lepidoptera, seven Homoptera, five Hemiptera, five Coleoptera, four Diptera, and one Thysanoptera species by inducing plant systemic resistance, enhancing plant tolerance, augmenting plant secondary metabolite production, and directly suppressing herbivores. Context‐dependent factors such as abiotic and biotic conditions, as well as the response of insect herbivores, can affect the outcomes of BM‐assisted plant defense. Several challenges and opportunities have emerged, including the development of synthetic microbial communities for herbivore control, the integration of biosensors for effectiveness assessment, the confirmation of BM targets for phytophagous insect defense, and the regulation of outcomes via smart farming with artificial intelligence. This study offers valuable insights for developing a BM‐enriched rhizosphere system within an integrated pest management approach. © 2024 Society of Chemical Industry.

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Amending soil with insect exuviae improves herbivore tolerance, pollinator attraction and seed yield of Brassica nigra plants

Cited by 7 publications

References 49 publications

Insect exuviae as soil amendment affect flower reflectance and increase flower production and plant volatile emission

Insect exuviae as soil amendment affect flower reflectance and increase flower production and plant volatile emission

Insect–microbe interactions and their influence on organisms and ecosystems

Construction of a beneficial microbes‐enriched rhizosphere system assists plants in phytophagous insect defense: current status, challenges and opportunities

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