Olfactory sensitivity to major, intermediate and trace components of sex pheromone in Ceratitis capitata is related to mating and circadian rhythm

Sollai, Giorgia; Solari, Paolo; Crnjar, Roberto Massimo

doi:10.1016/j.jinsphys.2018.08.007

Cited by 27 publications

(17 citation statements)

References 85 publications

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“…In parallel, female antennae increased their sensitivity to isoamyl acetate significantly after mating, which is coherent with the attractant role of this compound emitted by fresh fruit to mated females (Revadi et al 2015;Crava et al 2019). In Ceratitis capitata, sensitivity of antennae and palps to pheromone components emitted by sexually mature males, which attract both males and females, decreases after mating in both sexes (Sollai et al 2018). However, the mechanisms leading to mating-induced changes in antennal sensitivity are unknown so far.…”

Section: Reproductive Statementioning

confidence: 53%

Plasticity and modulation of olfactory circuits in insects

Anton

Rößler

2020

Cell Tissue Res

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Olfactory circuits change structurally and physiologically during development and adult life. This allows insects to respond to olfactory cues in an appropriate and adaptive way according to their physiological and behavioral state, and to adapt to their specific abiotic and biotic natural environment. We highlight here findings on olfactory plasticity and modulation in various model and non-model insects with an emphasis on moths and social Hymenoptera. Different categories of plasticity occur in the olfactory systems of insects. One type relates to the reproductive or feeding state, as well as to adult age. Another type of plasticity is context-dependent and includes influences of the immediate sensory and abiotic environment, but also environmental conditions during postembryonic development, periods of adult behavioral maturation, and short- and long-term sensory experience. Finally, plasticity in olfactory circuits is linked to associative learning and memory formation. The vast majority of the available literature summarized here deals with plasticity in primary and secondary olfactory brain centers, but also peripheral modulation is treated. The described molecular, physiological, and structural neuronal changes occur under the influence of neuromodulators such as biogenic amines, neuropeptides, and hormones, but the mechanisms through which they act are only beginning to be analyzed.

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Section: Reproductive Statementioning

confidence: 53%

Plasticity and modulation of olfactory circuits in insects

Anton

Rößler

2020

Cell Tissue Res

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“…Before each stimulation sequence (i.e., the five increasing solutions of each compound) in each experiment, the response to air (blank control) was also tested and, if present, its value was subtracted from those obtained in response to chemical stimuli. Stimuli were presented in a randomized sequence, with a blank interstimulus interval long enough to allow for complete repolarization, according to Sollai, Solari, and Crnjar (2018). Between test sessions, the glass pipette was plugged at both ends and kept frozen at −20°C.…”

Section: Methodsmentioning

confidence: 99%

Association between olfactory sensitivity and behavioral responses of Drosophila suzukii to naturally occurring volatile compounds

Corda

Solari

Dettori

et al. 2020

Arch Insect Biochem Physiol

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Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive, destructive crop pest that originated in South East Asia. D. suzukii recently invaded Western countries and is threatening both European and American fruit industries. It is extremely attracted to otherwise undamaged, ripening fruits, unlike most other Drosophila species that attack only decaying or rotten fruits. Recent studies on different insect species showed that several naturally occurring compounds of easy market availability showing deterrent action may be used to supplement mass catches with food traps. Based on these considerations, the aim of the present work was to test the effects of some natural compounds (alone or in the mixture) on the olfactory system of the D. suzukii and the behavioral responses evoked. We measured by electroantennogram (EAG) recordings, the olfactory sensitivity of antennae to increasing concentrations of eugenol, vanillin, menthol, cis-jasmone; eugenol + vanillin, +menthol, +cis-jasmone; vanillin + menthol, +cis-jasmone. In addition, the behavioral responses to the same compounds and mixtures were evaluated. Our electrophysiological results show a dose-response relationship between the EAG amplitudes and the increasing 2 of 14 | CORDA ET AL.

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“…From the concentrated fruit and leaf extract, 50 µL of solution was pipetted onto a pleated strip of filter study (80 × 5 mm) [58,59]. Stimuli were administered in a randomized sequence and a blank interstimulus interval was allowed for a complete receptor repolarization, according to Sollai et al [25].…”

Section: Stimulimentioning

confidence: 99%

“…In animals, the ability to identify mating partners, oviposition sites and food sources is strongly influenced by information arising from their chemical senses, olfaction and taste [1][2][3][4][5][6][7][8][9][10][11][12][13]. In both vertebrates and invertebrates-chemosensory performance varies among organisms belonging to the same species, and this diversity depends on age, sex, physiological state, diet, population, habitat and genetic factors [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Insects have developed sophisticated olfactory systems that allow them to detect odorous chemical signals, such as sexual pheromones, aggregation pheromones and food odors.…”

Section: Introductionmentioning

confidence: 99%

Differences in the Olfactory Sensitivity of Ceratitis capitata to Headspace of Some Host Plants in Relation to Sex, Mating Condition and Population

2020

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The Mediterranean fruit fly, Ceratitis capitata Wied., is among the most serious pests in horticulture worldwide, due to its high reproductive potential, difficulty of control and broad polyphagy. The aim of this study was to measure—by means of the electroantennogram recordings— the antennal olfactory sensitivity of virgin, mated, male, female, lab-reared and wild C. capitata following stimulation with fruit and leaf headspace of some host-plants: clementine, orange, prickly pear, lemon and apple. The results show that: (a) lab-reared mated males are more sensitive to host-plant fruit and leaf headspace than females, while the opposite was true for wild insects; (b) antennae of wild virgin males were more sensitive than the mated ones, while no difference was observed among lab-reared medflies; (c) lab-reared virgin females were more sensitive than mated ones, while few differences were found within wild medflies; (d) in mated insects, lab-reared males were more sensitive to both host-plant fruits and leaves than the wild ones, while the opposite was found for females. Taken together, these results show that the olfactory sensitivity to host-plant odors differs between virgin and mated and lab-reared and wild flies.

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Olfactory sensitivity to major, intermediate and trace components of sex pheromone in Ceratitis capitata is related to mating and circadian rhythm

Cited by 27 publications

References 85 publications

Plasticity and modulation of olfactory circuits in insects

Plasticity and modulation of olfactory circuits in insects

Association between olfactory sensitivity and behavioral responses of Drosophila suzukii to naturally occurring volatile compounds

Differences in the Olfactory Sensitivity of Ceratitis capitata to Headspace of Some Host Plants in Relation to Sex, Mating Condition and Population

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