Polypeptides of Acrolepiopsis assectella cocoon (Lepidoptera: Yponomeutoidea): an external host-acceptance kairomone for the parasitoid Diadromus pulchellus (Hymenoptera: Ichneumonidae)

Bénédet, Fabrice; Bigot, Yves; Renault, Sylvie; Pouzat, J.; Thibout, É.

doi:10.1016/s0022-1910(98)00136-x

Cited by 14 publications

(14 citation statements)

References 46 publications

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“…Moreover, it has seldom been possible to clarify which chemicals and which particular chemosensory receptors are involved in which behaviour. In the present study, the infochemicals and their source (Bénédet et al 1999) and the speci c sensillar receptors involved in the host-recognition behaviour exhibited by D. pulchellus females were clearly identi ed.…”

Section: Discussionmentioning

confidence: 69%

“…Two criteria were used to quantify host-acceptance behaviour: the total contact time and abdomen bending and probing (Bénédet et al 1999). The values of the rst criterion for a given experimental group of females were averaged, and then compared using the non-parametric Kruskal-Wallis test for independent samples.…”

Section: (D ) Isolation Of the Protein Kairomones And Behavioural Expmentioning

confidence: 99%

“…In the parasitoid Diadromus pulchellus, a specialist solitary endoparasitoid of the leek moth Acrolepiopsis assectella, host-acceptance behaviour is principally triggered following the perception of protein kairomones from the leek moth cocoon (Bénédet et al 1999). Behavioural observations (Bénédet et al 1999) and an experiment after removal of the antennae (Labeyrie 1960) performed on D. pulchellus females strongly suggest that chemoreceptors involved in host acceptance are present on the antennae.…”

Section: Introductionmentioning

confidence: 99%

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Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid

Bénédet¹,

Leroy²,

Gauthier

et al. 2002

Proc. R. Soc. Lond. B

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Proteins isolated from the host cocoon of Acrolepiopsis assectella (Lepidoptera: Yponomeutoidea) act as kairomones for host acceptance by the endoparasitoid wasp Diadromus pulchellus Wesmael (Hymenoptera: Ichneumonidae). In this study, morphological, ultrastructural and electrophysiological studies were carried out in order to identify the contact chemoreceptive sensilla on the parasitoid antennae that perceive the protein kairomones. Three types of sensillum on the antennae of the females were found to have a chemosensory function. The receptor cell(s) of one sensillar type were shown to give a positive electrophysiological response to protein kairomones. This sensillar type is apically multiporous and female specific. Consequently, this sensillum could be the one implicated in the perception of the protein kairomone that triggers the host-acceptance behaviour of D. pulchellus females.

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Section: Discussionmentioning

confidence: 69%

Section: (D ) Isolation Of the Protein Kairomones And Behavioural Expmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid

Bénédet¹,

Leroy²,

Gauthier

et al. 2002

Proc. R. Soc. Lond. B

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“…Although polypeptides and proteins have previously been reported as chemical signals in the host selection process by hymenopteran parasitoids (Weseloh, 1977; Bénédet et al, 1999; Gauthier et al, 2004), the definitive identification of such protein or polypeptide has never been achieved.…”

Section: Discussionmentioning

confidence: 99%

The use of salivary α-amylase as an evolutionary solution to host selection in parasitoids

Bichang'a

Mailhan³

et al. 2017

Preprint

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Foraging parasitoids use chemical signals in host recognition and selection processes. Thereby, chemicals from the herbivore hosts play a crucial role. When different herbivores are present in the same plant or field, the perception of specific volatiles and contact compounds emitted from the host itself enable the parasitoids both to differentiate between hosts and non-hosts and to estimate the health status of its host. During the host feeding process, contact between the parasitoid and its host is very crucial, and oral secretions from the host play a key role during the first contact for such evaluation by the parasitoid. Using an integration of behavioral observations, biochemical and sensory physiological approaches we demonstrate that female parasitoids of Cotesia flavipes recognize their host and oviposit in reaction to an α-amylase, which is present in the oral secretions of the larvae of their host, Chilo partellus. This activity was also mediated by a purified α-amylase synthetized from Drosophila melanogaster. Using this synthetized enzyme, we further demonstrate that the conformation of the enzyme rather than its catalytic site is responsible for this activity. This enzyme is activating gustatory neurons of the terminal antennal sensilla chaetica of C. flavipes females. α-amylases are therefore good candidates for an evolutionary solution to host selection in parasitoids, thus opening new avenues for investigations in hosts-parasitoids interactions.

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“…Many of the chemicals used in host location are also likely to be involved in host acceptance. In addition, nonvolatile chemicals present on the surface of the host have also been shown to be the stimuli for oviposition by several parasitoid species ((Bénédet et al, 1999;Battaglia et al, 2000;Calatayud et al, 2001;Conti et al, 2003;Takasu & Lewis, 2003). Chemical cues may act in conjunction with shape, size, and texture (Hare & Luck, 1994).…”

Section: Foraging and Oviposition Behaviormentioning

confidence: 99%

Effect of competition between Aphytis chrysomphali (Mercet) and A. melinus (Hymenoptera:Aphelinidae), on their coexistence and efficacy as biological control agents of Aonidiella aurantii (Hemiptera: Diaspididae)

Cebolla¹

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Polypeptides of Acrolepiopsis assectella cocoon (Lepidoptera: Yponomeutoidea): an external host-acceptance kairomone for the parasitoid Diadromus pulchellus (Hymenoptera: Ichneumonidae)

Cited by 14 publications

References 46 publications

Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid

Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid

The use of salivary α-amylase as an evolutionary solution to host selection in parasitoids

Effect of competition between Aphytis chrysomphali (Mercet) and A. melinus (Hymenoptera:Aphelinidae), on their coexistence and efficacy as biological control agents of Aonidiella aurantii (Hemiptera: Diaspididae)

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