Response profile of pheromone receptor neurons in male Grapholita molesta (Lepidoptera: Tortricidae)

Ammagarahalli, Byrappa; Gemeno, César

doi:10.1016/j.jinsphys.2014.10.011

Cited by 14 publications

(26 citation statements)

References 65 publications

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“…Correspondence between ST density and the ratio of sex pheromone components usually exists in species whose sensilla housed only one single OSN (Baker et al, ; Wu et al, ). Where two or more OSNs co‐occur in one sensillum, the major component OSN usually has a larger dendrite size (Ammagarahalli & Gemeno, ; Baker et al, ). Here, we observed that the OSN detecting Z3,epo6,Z9–18:H had larger amplitude spikes than those of other OSNs in both species (Figure ), which probably corresponds to larger diameter OSN dendrites (Hansson, Hallberg, Löfstedt, & Steinbrecht, ).…”

Section: Discussionmentioning

confidence: 99%

“…Peripheral coding of male moth antennal sensilla for shared sex pheromone components mainly depends on the size of the population of OSNs and neuron dendrite diameters (Ammagarahalli & Gemeno, ; Baker, Domingue, & Myrick, ; Wu et al, ). Under conditions of a single OSN housed per sensillum, the abundance of OSNs tuned to the major sex pheromone component is higher than that tuned to minor components (Wu et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Under conditions of a single OSN housed per sensillum, the abundance of OSNs tuned to the major sex pheromone component is higher than that tuned to minor components (Wu et al, ). When two OSNs are housed together in one sensillum, OSNs tuned to the major sex pheromone component have larger dendrite diameter than those tuned to the minor components (Ammagarahalli & Gemeno, ; Baker et al, ). Major and minor sex pheromone components are distinguished by dynamic flux transduction to the AL with the coding of population density and diameter of OSNs tuned to specific components (Baker et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of male antennal morphology and sensilla physiology for sex pheromone olfactory sensing between sibling moth species: Ectropis grisescens and Ectropis obliqua (Geometridae)

Liu

Luo

et al. 2019

Arch Insect Biochem Physiol

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Ectropis grisescens and Ectropis obliqua (Lepidoptera: Geometridae) are sibling pest species that co-occur on tea plants.The sex pheromone components of both species contain (Z,Z,Z)-3,6,9-octadecatriene and (Z,Z)-3,9-cis-6,7-epoxy-octadecadiene. E. obliqua has (Z,Z)-3,9-cis-6,7-epoxy-nonadecadiene as an additional sex pheromone component, which ensures reproductive segregation between the two species.To ascertain the detection mechanism of olfactory organs for sex pheromone components of E. grisescens and E. obliqua, we applied scanning electron microscopy and single sensillum recording to compare antennal morphology and sensillum physiology in the two species. There was no apparent morphological difference between the antennae of the two species. Both species responded similarly to all three sex pheromone components, including, E. obliqua specific component. The distribution patterns of antennal sensilla trichodea differed between the two species. Sex pheromone olfactory sensing in these sibling species appears to be determined by the density of different types of olfactory sensing neurons. Dose-dependent responses of sensilla trichodea type 1 to (Z,Z)-3,9-cis-6,7-epoxy-octadecadiene, the most abundant component, showed an "all or none" pattern and the other two components showed Arch. Insect Biochem. Physiol. 2019;101:e21545.wileyonlinelibrary.com/journal/arch

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of male antennal morphology and sensilla physiology for sex pheromone olfactory sensing between sibling moth species: Ectropis grisescens and Ectropis obliqua (Geometridae)

Liu

Luo

et al. 2019

Arch Insect Biochem Physiol

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“…These ratios correspond roughly with the proportion of the three pheromone components in the female blend (1:0.2:0.01, reviewed in [6]). Possibly, the proportion of ORNs tuned to each of the three pheromone compounds is relatively similar to the proportion of these compounds in the blend, as occurs in other moth species [28] and references therein. A single-cell electrophysiology study shows that 50% of the L. botrana male ORNs respond to E 7, Z 9-12:Ac [29], which supports this hypothesis.…”

Section: Discussionmentioning

confidence: 99%

EAG Responses of Adult Lobesia botrana Males and Females Collected from Vitis vinifera and Daphne gnidium to Larval Host-Plant Volatiles and Sex Pheromone

Pérez-Aparicio

Torres‐Vila

Gemeno

2019

Insects

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We analysed electroantennogram (EAG) responses of male and female adults of the European grapevine moth Lobesia botrana (Denis et Schiffermüller) (Lepidoptera: Tortricidae) collected as larvae from grapevine (Vitis vinifera L.) and flax-leaved daphne (Daphne gnidium L.). The host-plant odorants tested were either V. vinifera-specific [1-octen-3-ol, (E)-β-farnesene, (E)-4,8-dimethyl-1,3,7-nonatriene], D. gnidium-specific (2-ethyl-hexan-1-ol, benzothiazole, linalool-oxide, ethyl benzanoate), or were shared by both host-plants (linalool, methyl salicylate). Sex pheromone compounds were also tested. The male response to the major pheromone component (E7,Z9-12:Ac) was higher than to any other stimuli, whereas the response to the minor pheromone components (E7,Z9-12:OH and Z9-12:Ac) was not different from the response to the plant odorants. The female response to pheromone was lower or not different from that to plant odorants. Methyl salicylate elicited a higher response in females and (E)-β-farnesene elicited a higher response than several other plant odorants in both sexes. Non-significant interactions between host-plant odorant and sex indicated an absence of sex specialization for host-plant volatile detection. The lack of a significant interaction between plant volatiles and larval host-plants suggested that there was no specialization for plant-volatile detection between V. vinifera and D. gnidium individuals.

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“…There is an abundance of olfactory sensilla on antennae. Sensilla basiconica mainly sense host volatiles, and sensilla trichodea detect sex pheromones ( Ammagarahalli and Gemeno 2014 , Yan et al 2017 , Faucheux et al 2019 ). Furthermore, the high sensitivity and specificity of the olfactory system are closely related to olfactory proteins located in antennae, such as odorant binding proteins (OBPs), chemosensory proteins (CSPs), olfactory receptors (ORs), ionotropic receptors (IRs), sensory neuron membrane proteins (SNMPs), and odorant-degrading enzymes (ODEs) ( Pelosi et al 2006 , Vogt et al 2009 , Abuin et al 2011 , Leal 2013 , Pelosi et al 2018 , Fleischer et al 2018 ).…”

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confidence: 99%

Expression Profiles and Binding Properties of the Chemosensory Protein PxylCSP11 from the Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae)

ShuHui

Yan

et al. 2020

Journal of Insect Science

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The diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae) is one of the most destructive pests to cruciferous plants worldwide. The oligophagous moth primarily utilizes its host volatiles for foraging and oviposition. Chemosensory proteins (CSPs) are soluble carrier proteins with low molecular weight, which recognize and transport various semiochemicals in insect chemoreception. At present, there is limited information on the recognition of host volatiles by CSPs of P. xylostella. Here, we investigated expression patterns and binding characteristics of PxylCSP11 in P. xylostella. The open reading frame of PxylCSP11 was 369-bp encoding 122 amino acids. PxylCSP11 possessed four conserved cysteines, which was consistent with the typical characteristic of CSPs. PxylCSP11 was highly expressed in antennae, and the expression level of PxylCSP11 in male antennae was higher than that in female antennae. Fluorescence competitive binding assays showed that PxylCSP11 had strong binding abilities to several ligands, including volatiles of cruciferous plants, and (Z)-11-hexadecenyl acetate (Z11-16:Ac), a major sex pheromone of P. xylostella. Our results suggest that PxylCSP11 may play an important role in host recognition and spouse location in P. xylostella.

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Response profile of pheromone receptor neurons in male Grapholita molesta (Lepidoptera: Tortricidae)

Cited by 14 publications

References 65 publications

Comparison of male antennal morphology and sensilla physiology for sex pheromone olfactory sensing between sibling moth species: Ectropis grisescens and Ectropis obliqua (Geometridae)

Comparison of male antennal morphology and sensilla physiology for sex pheromone olfactory sensing between sibling moth species: Ectropis grisescens and Ectropis obliqua (Geometridae)

EAG Responses of Adult Lobesia botrana Males and Females Collected from Vitis vinifera and Daphne gnidium to Larval Host-Plant Volatiles and Sex Pheromone

Expression Profiles and Binding Properties of the Chemosensory Protein PxylCSP11 from the Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae)

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