Harnessing Insect–Microbe Chemical Communications To Control Insect Pests of Agricultural Systems

Beck, John J.; Vannette, Rachel L.

doi:10.1021/acs.jafc.6b04298

Cited by 63 publications

(44 citation statements)

References 58 publications

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“…Growing evidence suggests that microbes affect several key aspects of plant reproduction. For instance microbes can produce distinct and abundant volatile compounds that can in some cases strongly attract (Beck & Vannette ) or repel (Good et al . ) pollinating insects, and thus potentially act as an added filter on pollinator taxa visiting plant species.…”

Section: Emerging Frontiersmentioning

confidence: 99%

Reflections on, and visions for, the changing field of pollination ecology

et al. 2018

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Since the launch of Ecology Letters in 1998, the field of Pollination Ecology has changed considerably in its focus. In this review, we discuss the major discoveries across the past two decades. We quantitatively synthesise the frequency by which different concepts and topics appeared in the peer-reviewed literature, as well as the connections between these topics. We then look forward to identify pressing research frontiers and opportunities for additional integration in the future. We find that there has been a shift towards viewing plant-pollinator interactions as networks and towards understanding how global drivers influence the plants, pollinators and the ecosystem service of pollination. Future frontiers include moving towards a macroecological view of plant-pollinator interactions, understanding how ecological intensification and urbanisation will influence pollination, considering other interactions, such as plant-microbe-pollinator networks, and understanding the causes and consequences of extinctions. Pollination Ecology is poised to advance our basic understanding of the ecological and evolutionary factors that shape plant-animal interactions and to create applied knowledge that informs conservation decision making.

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Section: Emerging Frontiersmentioning

confidence: 99%

Reflections on, and visions for, the changing field of pollination ecology

et al. 2018

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“…However, whether volatiles produced by microbes, rather than their plant hosts, can alter ecological interactions remains poorly understood (but see Davis et al ., ), particularly for plant–pollinator interactions. If microorganisms directly modify a plant's chemical phenotype (chemotype), their influence could extend not only to pollination, but possibly other plant–insect interactions as well (Beck & Vannette, ).…”

Section: Introductionmentioning

confidence: 99%

Nectar‐inhabiting microorganisms influence nectar volatile composition and attractiveness to a generalist pollinator

et al. 2017

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SummaryThe plant microbiome can influence plant phenotype in diverse ways, yet microbial contribution to plant volatile phenotype remains poorly understood. We examine the presence of fungi and bacteria in the nectar of a coflowering plant community, characterize the volatiles produced by common nectar microbes and examine their influence on pollinator preference.Nectar was sampled for the presence of nectar-inhabiting microbes. We characterized the headspace of four common fungi and bacteria in a nectar analog. We examined electrophysiological and behavioral responses of honey bees to microbial volatiles. Floral headspace samples collected in the field were surveyed for the presence of microbial volatiles.Microbes commonly inhabit floral nectar and the common species differ in volatile profiles. Honey bees detected most microbial volatiles tested and distinguished among solutions based on volatiles only. Floral headspace samples contained microbial-associated volatiles, with 2-ethyl-1-hexanol and 2-nonanone -both detected by bees -more often detected when fungi were abundant.Nectar-inhabiting microorganisms produce volatile compounds, which can differentially affect honey bee preference. The yeast Metschnikowia reukaufii produced distinctive compounds and was the most attractive of all microbes compared. The variable presence of microbes may provide volatile cues that influence plant-pollinator interactions.

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“…Insect microbiomes can have important consequences for the outcome of insect pest-natural enemies-host plant interactions (Ferrari et al 2011). Strategies that involve modifying insect microbiomes are currently being evaluated for control and management of pests and vectors of plant diseases (Crotti et al 2012; Perilla-henao and Casteel 2016; Arora and Douglas 2017; Beck and Vannette 2017). Insect microbiomes play a key role in the adaptation of insect to their environment and are therefore a major and often poorly understood determinant of the host plant and geographic range of insect pests (Su et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Diversity of fall armyworm, Spodoptera frugiperda and their gut bacterial community in Kenya

Gichuhi

Subramanian

Khamis

et al. 2019

Preprint

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9The invasive fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) is a polyphagous pest that causes 10 widespread damage particularly to maize and sorghum in Africa. The microbiome associated with S. 11frugiperda could play a role in their success and adaptability. However, these bacterial communities remain 12 poorly studied, especially for S. frugiperda in Africa. We investigated the composition, abundance and 13 diversity of microbiomes associated with larval and adult specimens of S. frugiperda collected from four 14 maize growing regions in Kenya through high throughput sequencing of bacterial 16S rRNA gene. We 15 identified Proteobacteria and Firmicutes as the most dominant phyla and lesser proportions of 16 Bacteroidetes and Actinobacteria. We also observed differences in bacterial microbiome diversity between 17 larvae and adults that are a likely indication that some prominent larval bacterial groups are lost during 18 metamorphosis. Several bacterial groups were found in both adults and larvae suggesting that they are 19 transmitted across developmental stages. Reads corresponding to several known entomopathogenic 20 bacterial clades as well as the non-bacterial entomopathogen, Metarhizium rileyi (Farl.) Kepler, Rehner & 21 Humber (2014), were observed. Mitochondrial DNA haplotyping of the S. frugiperda population in Kenya 22 indicated the presence of both 'Rice' and 'Corn' strains, with a higher prevalence of the 'Rice' strain. Insights 23 into the microbiota may ultimately provide alternative avenues for controlling of this pest.24

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Harnessing Insect–Microbe Chemical Communications To Control Insect Pests of Agricultural Systems

Cited by 63 publications

References 58 publications

Reflections on, and visions for, the changing field of pollination ecology

Reflections on, and visions for, the changing field of pollination ecology

Nectar‐inhabiting microorganisms influence nectar volatile composition and attractiveness to a generalist pollinator

Diversity of fall armyworm, Spodoptera frugiperda and their gut bacterial community in Kenya

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