Activation of defence in sweet pepper, <i>Capsicum annum</i>, by <i>cis</i>‐jasmone, and its impact on aphid and aphid parasitoid behaviour

Dewhirst, Sarah Y.; Birkett, Michael A.; Loza-Reyes, Elisa; Martin, J. L.; Pye, B. J.; Smart, Lesley E.; Hardie, Jim; Pickett, John A.

doi:10.1002/ps.3326

Cited by 37 publications

(36 citation statements)

References 43 publications

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“…Therefore, overexpressing the isomerase in appropriate plant systems could provide an interesting biotechnological route to increase the attractiveness of plants to the parasitoids of caterpillars. Additionally, the exposure of intact plants to cis-jasmone can induce their indirect defence metabolisms (Pickett et al, 2007;Bruce et al, 2008;Moraes et al, 2009;Dewhirst et al, 2012). For example, wheat (Triticum aestivum) plants sprayed with formulated cis-jasmone were less susceptible after 24 h to attack by Sitobion avenae than control plants (Bruce et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

An odorant receptor mediates the attractiveness of cis‐jasmone to Campoletis chlorideae, the endoparasitoid of Helicoverpa armigera

Sun

Dong

Ning

et al. 2018

Insect Molecular Biology

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Parasitic wasps rely on olfaction to locate their hosts in complex chemical environments. Odorant receptors (ORs) function together with well-conserved odorant coreceptors (ORcos) to determine the sensitivity and specificity of olfactory reception. Campoletis chlorideae (Hymenoptera: Ichneunmonidae) is a solitary larval endoparasitoid of the cotton bollworm, Helicoverpa armigera, and some other noctuid species. To understand the molecular basis of C. chlorideae's olfactory reception, we sequenced the transcriptome of adult male and female heads (including antennae) and identified 211 OR transcripts, with 95 being putatively full length. The tissue expression profiles, as assessed by reverse-transcription PCR, showed that seven ORs were expressed only or more highly in female antennae. Their functions were analysed using the Xenopu slaevis oocyte expression system and two-electrode voltage-clamp recordings. CchlOR62 was tuned to cis-jasmone, which was attractive to female C. chlorideae adults and H. armigera larvae in the subsequent behavioural assays. Further bioassays using caged plants showed that the parasitism rate of H. armigera larvae by C. chlorideae on cis-jasmone-treated tobacco plants was higher than on the control plants. Thus, cis-jasmone appears to be an important infochemical involved in the interactions of plants, H. armigera and C. chlorideae, and CchlOR62 mediates the attractiveness of cis-jasmone to C. chlorideae.

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Section: Discussionmentioning

confidence: 99%

An odorant receptor mediates the attractiveness of cis‐jasmone to Campoletis chlorideae, the endoparasitoid of Helicoverpa armigera

Sun

Dong

Ning

et al. 2018

Insect Molecular Biology

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“…Successful experimental field trials in wheat against the grain aphid, Sitobion avenae , showed long‐term protection after defensive genes were switched on by an electrostatically sprayed aqueous formulation of cis ‐jasmone as an emulsifiable concentrate (Bruce et al ., ). In laboratory experiments, similarly encouraging results were obtained for cis ‐jasmone‐induced attraction of the egg parasitoid, Telenomus podisi , of soybean stink bug pests (Moraes et al ., ), antixenosis against the cotton aphid, Aphis gossypii (Hegde et al ., ), and increased parasitoid behaviour against the aphid Aulacorthum solani on sweet pepper Capsicum annuum in the glasshouse (Dewhirst et al ., ). The cis ‐jasmone‐induced indirect defence, in each case, involved signalling with volatile oxidation products of the isoprenoid pathway, including the tetranorterpenes ( E )‐4,8‐dimethyl‐1,3,7‐nonatriene (DMNT) and TMTT.…”

Section: Plant Volatile‐mediated Signalling Between Plants Via Airmentioning

confidence: 99%

Plant volatile‐mediated signalling and its application in agriculture: successes and challenges

2016

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SummaryThe mediation of volatile secondary metabolites in signalling between plants and other organisms has long been seen as presenting opportunities for sustainable crop protection. Initially, exploitation of interactions between plants and other organisms, particularly insect pests, foundered because of difficulties in delivering, sustainably, the signal systems for crop protection. We now have mounting and, in some cases, clear practical evidence for successful delivery by companion cropping or next-generation genetic modification (GM). At the same time, the type of plant signalling being exploited has expanded to signalling from plants to organisms antagonistic to pests, and to plant stress-induced, or primed, plant-to-plant signalling for defence and growth stimulation.

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“…Aphids use plant volatiles to locate suitable hosts and to avoid unfavourable plants by detecting chemical signals emitted by plants in response to aphid feeding and nutrient condition. Aphids are specifically sensitive to the homoterpenes such as ( E )-4,8-dimethyl-1,3,7-nonatriene and ( E , E)- 4,8,12-trimethyltrideca-1,3,7,11-tetraene which are produced by plants attacked by aphids and which reduce colonisation or attraction of predators or parasitoids in cotton aphids [14] and other aphids [15]. Thus, studying how aphid’s respond to pheromones and plant volatiles at the molecular level offers promising ways to explain the ecological context of aphid-aphid and aphid-plant interactions.…”

Section: Introductionmentioning

confidence: 99%

Identification and Expression Profiling of Odorant Binding Proteins and Chemosensory Proteins between Two Wingless Morphs and a Winged Morph of the Cotton Aphid Aphis gossypii Glover

Guo

et al. 2013

PLoS ONE

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Insects interact with their environment and respond to the changes in host plant conditions using semiochemicals. Such ecological interactions are facilitated by the olfactory sensilla and the use of olfactory recognition proteins. The cotton aphid Aphis gossypii can change its phenotype in response to ecological conditions. They reproduce mainly as wingless asexual morphs but develop wings to find mates or new plant hosts under the influence of environmental factors such as temperature, plant nutrition and population density. Two groups of small soluble proteins, odorant binding proteins (OBPs) and chemosensory proteins (CSPs) are believed to be involved in the initial biochemical recognition steps in semiochemical perception. However, the exact molecular roles that these proteins play in insect olfaction remain to be discovered. In this study, we compared the transcriptomes of three asexual developmental stages (wingless spring and summer morphs and winged adults) and characterised 9 OBP and 9 CSP genes. The gene structure analysis showed that the number and length of introns in these genes are much higher and this appears to be unique feature of aphid OBP and CSP genes in general. Another unique feature in aphids is a higher abundance of CSP transcripts than OBP transcripts, suggesting an important role of CSPs in aphid physiology and ecology. We showed that some of the transcripts are overexpressed in the antennae in comparison to the bodies and highly expressed in the winged aphids compared to wingless morphs, suggesting a role in host location. We examined the differential expression of these olfactory genes in ten aphid species and compared the expression profile with the RNA-seq analyses of 25 pea aphid transcriptome libraries hosted on AphidBase.

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Activation of defence in sweet pepper, Capsicum annum, by cis‐jasmone, and its impact on aphid and aphid parasitoid behaviour

Abstract: There is evidence that treatment with cis-jasmone has the potential to improve protection of sweet pepper against insect pests.

Cited by 37 publications

References 43 publications

An odorant receptor mediates the attractiveness of cis‐jasmone to Campoletis chlorideae, the endoparasitoid of Helicoverpa armigera

An odorant receptor mediates the attractiveness of cis‐jasmone to Campoletis chlorideae, the endoparasitoid of Helicoverpa armigera

Plant volatile‐mediated signalling and its application in agriculture: successes and challenges

Identification and Expression Profiling of Odorant Binding Proteins and Chemosensory Proteins between Two Wingless Morphs and a Winged Morph of the Cotton Aphid Aphis gossypii Glover

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