Linking aboveground and belowground interactions via herbivore-induced plant volatiles

Sun, Xiao; Sun, Yumei; Ma, Ling; Liu, Zhen; Zhang, Chujun; Huang, Wei; Siemann, Evan; Ding, Jianqing

doi:10.1127/entomologia/2022/1344

Cited by 9 publications

(2 citation statements)

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“…US herbivore-free plants. It has been shown that China populations of T. sebifera differ in the amounts and types of VOCS produced depending on the identity of the herbivore that attacks them (Sun et al 2019, 2022, He et al 2021) as is the case for most plants (Takabayashi 2022). Differences in the VOCs of native vs. invasive plants have also been shown, with some showing greater VOCs for invasive populations or different relative concentrations of compounds, depending on population origin (Zangerl et al 2008, Wolf et al 2011, Franks et al 2012, Lin et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Behavior of higher trophic levels associated with an invasive plant varies among populations

Ismail,

Siemann,

Ding

2023

Environmental Entomology

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Invasive plants from their native and introduced ranges differ in their interactions with herbivores but it is not known whether they also vary in their interactions with herbivore natural enemies. Here, we used olfactometer bioassays and cage experiments to investigate how foraging behaviors of 2 parasitoid and 1 hyperparasitoid species depended on plant population origin. Triadica sebifera (Euphorbiaceae) is native to China but invasive in the United States. In China, it is fed on by a specialist noctuid Gadirtha fusca (Lepidoptera: Nolidae), which hosts a parasitoid Apanteles sp. (Hymenoptera: Microgastinae) and hyperparasitoid (Hymenoptera: Eurytomidae) plus a generalist aphid Toxoptera odinae (Homoptera: Aphidiidae) parasitized by Lysiphlebus confusus (Hymenoptera: Aphidiinae). Both parasitoids preferred plants infested by their host over herbivore-free plants in olfactometer bioassays. Apanteles sp. and Eurytomid wasps preferred G. fusca infested plants from China populations over those from US populations in olfactometer bioassays but L. confusus wasps did not discriminate between T. odinae infested plants from China vs. US populations. Similarly, G. fusca caterpillars on China population plants were more likely to be parasitized than ones on US population plants when they were in the same cage but odds of parasitism for T. odinae did not differ for those on China vs. US population plants. These results suggest that populations from the native and introduced ranges may differ in traits that impact higher trophic levels. This may have implications for successful control of invasive plants as biocontrol agents are introduced or herbivores begin to feed on them in their introduced ranges.

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Section: Discussionmentioning

confidence: 99%

Behavior of higher trophic levels associated with an invasive plant varies among populations

Ismail,

Siemann,

Ding

2023

Environmental Entomology

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“…Plants emit HIPVs from directly damaged tissues, as well as systemic nondamaged tissues. Systemic HIPVs are induced by insect herbivory either aboveground or belowground, and these chemical cues are often distinct from HIPVs emitted by directly damaged tissues (Danner et al, 2015; Sun et al, 2022). In this study, we characterised systemic aboveground volatiles of nondamaged and belowground larvae‐damaged plants.…”

Section: Discussionmentioning

confidence: 99%

Belowground insect herbivory induces systemic volatile emissions that strengthen neighbouring plant resistance aboveground

Thompson,

Arriaga,

Bradford

et al. 2023

Plant Cell & Environment

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Plants transmit ecologically relevant messages to neighbouring plants through chemical cues. For instance, insect herbivory triggers the production of herbivore‐induced plant volatiles (HIPVs), which can enhance neighbouring plant defences. HIPVs are emitted from directly damaged plant tissues and from systemic, nondamaged tissues. Although volatile‐mediated interplant interactions have been observed both above‐ and belowground, it remains unknown whether belowground herbivory induces systemic HIPVs aboveground that influence neighbouring plants. To explore how belowground herbivory affects interplant interactions aboveground, we characterised systemic HIPVs from squash induced by belowground striped cucumber beetle (Acalymma vittatum) larval herbivory. We exposed squash ‘receiver plants’ to systemic HIPVs or volatiles from nondamaged plants. We then measured herbivore resistance by challenging ‘receiver plants’ with aboveground‐feeding herbivores: adult beetles (A. vittatum) or squash bugs (Anasa tristis). We discovered belowground‐damaged plants emitted more (E)‐β‐ocimene, a key volatile from the systemic HIPV blend, than nondamaged controls, and that exposure to systemic HIPVs enhanced neighbouring plant resistance to aboveground squash bugs, but not adult beetles. Further investigations into the mechanism of interplant interaction revealed β‐ocimene alone can elicit plant resistance against squash bugs. Overall, our findings reveal a novel form of volatile‐mediated interactions between plants spanning across aboveground–belowground plant systems.

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Bemisia tabaci infection of tomato plant alters bumblebee foraging behaviour

Li¹,

Huang²,

Xu³

et al. 2023

J Pest Sci

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Linking aboveground and belowground interactions via herbivore-induced plant volatiles

Cited by 9 publications

References 0 publications

Behavior of higher trophic levels associated with an invasive plant varies among populations

Behavior of higher trophic levels associated with an invasive plant varies among populations

Belowground insect herbivory induces systemic volatile emissions that strengthen neighbouring plant resistance aboveground

Bemisia tabaci infection of tomato plant alters bumblebee foraging behaviour

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