Rhizobacterial colonization of roots modulates plant volatile emission and enhances the attraction of a parasitoid wasp to host-infested plants

Pangesti, Nurmi; Weldegergis, Berhane T.; Langendorf, Benjamin; Loon, Joop J. A. van; Dicke, Marcel; Pineda, Ana

doi:10.1007/s00442-015-3277-7

Cited by 85 publications

(92 citation statements)

References 60 publications

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“…Similar patterns of pest-inhibition were shown in response to insect herbivores. Inoculation of Arabidopsis with Pseudomonas fluorescens WCS417r altered the plant volatile emission profile in response to an herbivorous caterpillar; this correlated with recruitment of an insecticidal parasitoid wasp [89]. …”

Section: Genetic Control Of Beneficial Plant-microbe Interactionsmentioning

confidence: 99%

Understanding and exploiting plant beneficial microbes

Finkel

Castrillo

Paredes

et al. 2017

Current Opinion in Plant Biology

571

335

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After a century of incremental research, technological advances, coupled with a need for sustainable crop yield increases, have reinvigorated the study of beneficial plant-microbe interactions with attention focused on how microbiomes alter plant phenotypes. We review recent advances in plant microbiome research, and describe potential applications for increasing crop productivity. The phylogenetic diversity of plant microbiomes is increasingly well characterized, and their functional diversity is becoming more accessible. Large culture collections are available for controlled experimentation, with more to come. Genetic resources are being brought to bear on questions of microbiome function. We expect that microbial amendments of varying complexities will expose rules governing beneficial plant-microbe interactions contributing to plant growth promotion and disease resistance, enabling more sustainable agriculture.

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Section: Genetic Control Of Beneficial Plant-microbe Interactionsmentioning

confidence: 99%

Understanding and exploiting plant beneficial microbes

Finkel

Castrillo

Paredes

et al. 2017

Current Opinion in Plant Biology

571

335

View full text Add to dashboard Cite

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“…Therefore, we expected P. simiae WCS417r to have a positive effect on plant growth in potting soil as well (Pangesti et al ., ). However, since rhizobacteria‐induced resistance against M. brassicae was variable in our previous studies (Pangesti et al ., ; Pangesti et al ., ; Pangesti et al ., ), we expected to observe again a variable effect. Additionally, based on previous evidence showing that (1) P. simiae WCS417r–mediated ISR requires an intact JA signal‐transduction pathway (Pangesti et al ., ; Pieterse et al ., ), (2) that drought induces ABA (Fujita et al ., ; Yoshida et al ., ), and (3) that ABA has a synergistic effect on the MYC2‐branch of the JA pathway against chewing insects (Vos et al ., ), we expected drought to strengthen the negative effect of rhizobacteria on herbivore performance.…”

Section: Introductionmentioning

confidence: 99%

Does drought stress modify the effects of plant‐growth promoting rhizobacteria on an aboveground chewing herbivore?

et al. 2017

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Soil microbes have important effects on the interactions of plants with their environment, by promoting plant growth, inducing resistance to pests or by conferring tolerance to abiotic stress. However, their effects are variable and the factors responsible for this variation are mainly unknown. Our aim was to assess how drought stress modifies the effect of the nonpathogenic rhizobacterium Pseudomonas simiae WCS417r on plant growth and resistance against the generalist leaf-chewing caterpillar Mamestra brassicae. We studied Arabidopsis thaliana Col-0 plants, as well as mutants altered in the biosynthesis of the phytohormones jasmonic acid (JA) and abscisic acid (ABA). Caterpillars did not prefer rhizobacteria-treated plants, independently of drought stress. Rhizobacteria colonization had a variable effect on caterpillar performance, which ranged from positive in one experiment to neutral in a second one. Drought had a consistent negative effect on herbivore performance; however, it did not modify the effect of rhizobacteria on herbivore performance. The effect of drought on herbivore performance was JA-mediated (confirmed with the use of the dde2-2 mutant), but it was still present in the ABA-deficient mutant aba2-1. Plant biomass was reduced by both drought and herbivory but it was enhanced by rhizobacterial colonization. Pseudomonas simiae WCS417r is able to promote plant growth even when plants are suffering herbivory. Nevertheless, the microbial effect on the herbivore is variable, independently of drought stress. To get the best possible outcome from the rhizobacteria-plant mutualism it is important to understand which other factors may be responsible for its context-dependency.

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“…Haney et al, ) could influence the ability of plants to produce volatiles that attract herbivore natural enemies, as volatile production is dependent on these same pathways (Okada, Abe, & Arimura, ). While single rhizosphere microbial strains can modify the attraction of parasitoid wasps to their hosts (Pangesti et al, ; Pineda et al, ), it is not well‐established how the soil community and feedbacks among plants and the soil community influence parasitoid attraction (see Pineda et al, , Cameron, Neal, Wees, & Ton, ). Due to emergent properties from the whole soil microbiome (Vandenkoornhuyse, Quaiser, Duhamel, Van, & Dufresne, ), studies are increasingly testing the effects of plant–soil feedbacks on foliar insect interactions rather than isolating specific taxa (Kaplan et al, ), yet no such study has examined effects on parasitoid attraction.…”

Section: Introductionmentioning

confidence: 99%

Domesticated tomatoes are more vulnerable to negative plant–soil feedbacks than their wild relatives

Carrillo

Ingwell

et al. 2019

Journal of Ecology

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Domesticated plants can differ from their wild counterparts in the strength and outcome of species interactions, both above‐ and belowground. Plant–soil feedbacks influence plant success, and plant‐associated soil microbial communities can influence plant interactions with herbivores and their natural enemies, yet, it remains unclear if domestication has changed these relationships. To determine the effects of domestication on plant–soil interactions, we characterized soil microbial communities associated with various cultivars of domesticated tomato and some of its wild relatives. We measured the strength and direction of plant–soil feedbacks for domesticated and wild tomatoes, and the effects of soil on plant resistance to specialist herbivory by Manduca sexta, and the attraction of a parasitoid wasp, Cotesia congregata. Domesticated tomatoes and their wild relatives had negative plant–soil feedbacks, as conspecifics cultivated soil that negatively impacted performance of subsequent plants (longer germination time, lower biomass) than if they grew in non‐tomato soils. Significant variation existed among domesticated and wild tomato varieties in the strength of these feedbacks, ranging from neutral to strongly negative. For above‐ground plant biomass, tomato wild relatives were unaffected by growing in tomato‐conditioned soil, whereas domesticated tomatoes grew smaller in tomato soil, indicating effects of plant domestication. Overall, increased microbial biomass within the rhizosphere resulted in progressively less‐negative plant–soil feedbacks. Plant cultivars had different levels of resistance to herbivory by M. sexta, but this did not depend on plant domestication or soil type. The parasitoid C. congregata was primarily attracted to herbivore damaged plants, independent of plant domestication status, and for these damaged plants, wasps preferred some cultivars over others, and wild plants grown in tomato soil over wild plants grown in non‐tomato soil. Synthesis. These results indicate that crop tomatoes are more likely to show negative plant–soil feedbacks than wild progenitors, which could partially explain their sensitivity to monocultures in agricultural soils. Furthermore, cultivar‐specific variation in the ability to generate soil microbial biomass, independent of domestication status, appears to buffer the negative consequences of sharing the same soil. Last, soil legacies were relatively absent for herbivores, but not for parasitoid wasps, suggesting trophic level specificity in soil feedbacks on plant–insect interactions.

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Rhizobacterial colonization of roots modulates plant volatile emission and enhances the attraction of a parasitoid wasp to host-infested plants

Cited by 85 publications

References 60 publications

Understanding and exploiting plant beneficial microbes

Understanding and exploiting plant beneficial microbes

Does drought stress modify the effects of plant‐growth promoting rhizobacteria on an aboveground chewing herbivore?

Domesticated tomatoes are more vulnerable to negative plant–soil feedbacks than their wild relatives

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