Chemical interaction between undamaged plants – Effects on herbivores and natural enemies

Glinwood, Robert; Ninkovic, Velemir; Pettersson, Jan

doi:10.1016/j.phytochem.2011.02.010

Cited by 50 publications

(40 citation statements)

References 78 publications

(88 reference statements)

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“…Volatile compounds released by undamaged plants also affect the attractiveness of neighbours to insect herbivores and insect natural enemies. Fewer aphids (Pettersson et al 1999;Glinwood et al 2004;Ninkovic et al 2009) and more aphid natural enemies (ladybirds and parasitoids) (Ninkovic and Pettersson 2003;Glinwood et al 2009) have been reported to be attracted to barley plants exposed to the volatiles emitted by undamaged weeds [Cirsium spp., Chenopodium album L.] or conspecifics (for reviews, see Ahman and Ninkovic 2010;Glinwood 2010;Ninkovic 2010;Glinwood et al 2011).…”

Section: Vocs Play Important Ecological Roles In Plant-plant Interactmentioning

confidence: 99%

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

et al. 2016

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Background Aboveground, plants release volatile organic compounds (VOCs) that act as chemical signals between neighbouring plants. It is now well documented that VOCs emitted by the roots in the plant rhizosphere also play important ecological roles in the soil ecosystem, notably in plant defence because they are involved in interactions between plants, phytophagous pests and organisms of the third trophic level. The roles played by root-emitted VOCs in between-and withinplant signalling, however, are still poorly documented in the scientific literature. Scope Given that (1) plants release volatile cues mediating plant-plant interactions aboveground, (2) roots can detect the chemical signals originating from their neighbours, and (3) roots release VOCs involved in biotic interactions belowground, the aim of this paper is to discuss the roles of VOCs in between-and withinplant signalling belowground. We also highlight the technical challenges associated with the analysis of root-emitted VOCs and the design of experiments targeting volatile-mediated root-root interactions. Conclusions We conclude that root-root interactions mediated by volatile cues deserve more research attention and that both the analytical tools and methods developed to study the ecological roles played by VOCs in interplant signalling aboveground can be adapted to focus on the roles played by root-emitted VOCs in between-and within-plant signalling.

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Section: Vocs Play Important Ecological Roles In Plant-plant Interactmentioning

confidence: 99%

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

et al. 2016

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“…As well as using volatiles to determine taxonomic identity, aphids can also use plant volatiles to discriminate between the suitability of different plants within the same species (Webster 2012). The emission of volatiles from plants is significantly changed in plants under stress caused by abiotic factors (Gouinguene and Turlings 2002), mechanical damage (Piesik et al 2010), pathogens (Rajabaskar et al 2013b), herbivory (Arimura et al 2009), or co-existence with other con-and hetero-specific plants (Ninkovic et al 2002;Ninkovic 2003;Le Guigo et al 2012;Glinwood et al 2011) than in unstressed plants. These changes in their volatile profiles can play important roles in aphid behavior and host plant search.…”

Section: Introductionmentioning

confidence: 99%

Changed host plant volatile emissions induced by chemical interaction between unattacked plants reduce aphid plant acceptance with intermorph variation

2014

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Olfactory orientation by aphids is guided by specific volatile blends released from their hosts. Host plants that co-exist with other plants may be less attractive for aphids due to volatile interactions between neighboring plants which can lead to changes in their volatile emissions. These changes in host plant volatile profiles induced by interactions between undamaged plants could be used to manage aphid populations in crops. When potato plants are exposed to volatiles from onion plants, the volatile profile of potato changes in relation to that of unexposed plants with consistently greater quantities of two terpenoids released. We examined the host plant searching behavior of aphids and showed that induced changes in plant volatile emissions affect aphid behavior. We assessed olfactory responses of winged and wingless aphids, Myzus persicae Sulzer (Hemiptera: Aphididae) to the changed volatile emissions. Both morphs were significantly less attracted to odors of potato plants that had been exposed to volatiles from onion than to odors of unexposed potato plants. Further, both morphs were significantly less attracted to synthetic blends mimicking volatiles emitted by onionexposed potato plants than to blends mimicking nonexposed controls, and to single compounds emitted in greater quantities by exposed potato. Aphid morphs were repelled differently depending on the concentration of odor sources; winged aphids responded to higher doses than did wingless aphids. The aphid responses to changes in plant volatile profiles induced by neighboring plants may facilitate refinement of habitat manipulation strategies (e.g., intercropping) for integrated pest management to reduce aphid occurrence in crops.

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“…7 However, it has been shown that volatile interaction between unattacked plants 8 can also occur, reducing attractiveness of the receiving plants to insect herbivores. [9][10][11] Further, volatile interaction between unattacked plants can also lead to attraction of predatory insects, despite the absence of prey feeding on the plants. 8,12,13 Increasing diversity of plant species, or even the presence of different genotypes of the same plant species within an environment, has an impact on the abundance of phytophagous insects and their natural enemies.…”

mentioning

confidence: 99%

Volatile interaction between undamaged plants affects tritrophic interactions through changed plant volatile emission

Vucetic

Dahlin

Petrović-Obradović

et al. 2014

Plant Signaling & Behavior

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Chemical interaction between undamaged plants – Effects on herbivores and natural enemies

Cited by 50 publications

References 78 publications

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

Changed host plant volatile emissions induced by chemical interaction between unattacked plants reduce aphid plant acceptance with intermorph variation

Volatile interaction between undamaged plants affects tritrophic interactions through changed plant volatile emission

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