Stimulatory effects of male accessory-gland extracts on the myogenicity and the adenylate cyclase activity of the oviduct of Locusta migratoria

Lafon-Cazal, Mireille; Gallois, Dominique; Lehouelleur, Jacques; Bockaert, Joël

doi:10.1016/0022-1910(87)90002-3

Cited by 13 publications

(4 citation statements)

References 12 publications

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“…Comparable to the action of love-dart mucus reported here, studies on insects show that male products can also directly induce contractions of the female reproductive system (e.g. Melanoplus sanguinipes [ 47 ]; Locusta migratoria [ 52 ]). However, differences may occur in the evolution of such substances between different sexual systems.…”

Section: Discussionmentioning

confidence: 53%

On the effect specificity of accessory gland products transferred by the love-dart of land snails

Lodi

Koene

2016

BMC Evol Biol

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BackgroundSexual selection favours the evolution of male bioactive substances transferred during mating to enhance male reproductive success by affecting female physiology. These effects are mainly well documented for separate-sexed species. In simultaneous hermaphrodites, one of the most peculiar examples of transfer of such substances is via stabbing a so-called love-dart in land snails. This calcareous stylet delivers mucous products produced by accessory glands into the mate’s haemolymph. In Cornu aspersum, this mucus temporarily causes two changes in the recipient. First, the spermatophore uptake into the spermatophore-receiving organ, called diverticulum, is probably favoured by contractions of this organ. Second, the amount of stored sperm increases by contractions of the copulatory canal, which close off the tract leading to the sperm digesting organ. However, it has yet to be determined whether these effects are similar across species, which would imply a common strategy of the dart in increasing male reproductive success.ResultsWe performed a cross-reactivity test to compare the in vitro response of the diverticulum and copulatory canal of C. aspersum (Helicidae) to its own and other species’ mucus (seven helicids and one bradybaenid). We found that the contractions in the diverticulum were only induced by dart mucus of certain species, while the copulatory canal responded equally to all but one species’ mucus tested. In addition, we report a newly-discovered effect causing the shortening of the diverticulum, which is also only caused by dart mucus of certain species. The advantage seems to be a distance reduction to the sperm storage organ.ConclusionsAll these findings are the first to shed light on the evolution of the different functions of accessory gland products in dart-bearing species. These functions may be achieved via common physiological changes caused by the substances contained in the dart mucus, since the responses evoked were similar across species’ mucus. Moreover, while these substances can act similarly in separate-sexed species as in simultaneous hermaphrodites, differences may occur in their evolution between the two sexual systems.Electronic supplementary materialThe online version of this article (doi:10.1186/s12862-016-0672-6) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 53%

On the effect specificity of accessory gland products transferred by the love-dart of land snails

Lodi

Koene

2016

BMC Evol Biol

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“…Epinastine, regarded as a high-affinity, highly specific antagonist of octopamine (Roeder et al, 1998), depressed light output after ingestion and when bathing the light organ, supporting its role as an antagonist of octopamine. Phentolamine, used in many studies as an octopamine receptor antagonist (Lafon-Cazal et al, 1987;Stevenson et al, 1992;Meyer-Fernandes et al, 2000;Cohen et al, 2002) caused a marked -up to fivefold -increase in total light output through the night following oral introduction. The effect is long lasting, persisting into the following photophase, as larvae do not show the normal light-induced dousing response to external light (Gatenby, 1959;Meyer-Rochow and Waldvogel, 1979).…”

Section: Octopamine and Antagonistsmentioning

confidence: 99%

Roles of biogenic amines in regulating bioluminescence in the Australian glowworm Arachnocampa flava

Rigby

Merritt

2011

Journal of Experimental Biology

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SUMMARY The glowworm Arachnocampa flava is a carnivorous fly larva (Diptera) that uses light to attract prey into its web. The light organ is derived from cells of the Malpighian tubules, representing a bioluminescence system that is unique to the genus. Bioluminescence is modulated through the night although light levels change quite slowly compared with the flashing of the better-known fireflies (Coleoptera). The existing model for the neural regulation of bioluminescence in Arachnocampa, based on use of anaesthetics and ligations, is that bioluminescence is actively repressed during the non-glowing phase and the repression is partially released during the bioluminescence phase. The effect of the anaesthetic, carbon dioxide, on the isolated light organ from the present study indicates that the repression is at least partially mediated at the light organ itself rather than less directly through the central nervous system. Blocking of neural signals from the central nervous system through ligation leads to uncontrolled release of bioluminescence but light is emitted at relatively low levels compared with under anaesthesia. Candidate biogenic amines were introduced by several methods: feeding prey items injected with test solution, injecting the whole larva, injecting a ligated section containing the light organ or bathing the isolated light organ in test solution. Using these methods, dopamine, serotonin and tyramine do not affect bioluminescence output. Exposure to elevated levels of octopamine via feeding, injection or bathing of the isolated light organ indicates that it is involved in the regulation of repression. Administration of the octopamine antagonists phentolamine or mianserin results in very high bioluminescence output levels, similar to the effect of anaesthetics, but only mianserin acts directly on the light organ.

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“…In Orthoptera, for female, multiple mating has many advantages [9]: preventing the females from sperm depletion [10], increasing the rate of oviposition [11][12][13][14][15], or providing material incorporated into eggs or female biomass [16,17]. Since the 1950, it has been shown that desert locust copulation occurs frequently, and multiple copulation appears to serve mainly as a stimulant to egg-laying [18].…”

Section: Introductionmentioning

confidence: 99%

Polyandry as a Signal of Phase Shift in Female Desert Locust Schistocerca gregaria

Dushimirimana¹,

Damien²,

Hance³

2017

Future Foods

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The multiple mating by female (polyandry) is a widespread behavior in insect species. This behavior is known to be a kind of itness maximization, but some case of sexual selection factors can explain the evolution of this behavior in relation with the phenotype plasticity model. In this paper, we analyze the role of polyandry in the reproductive success and in the phase shift process in the gregarious desert locust. In an applied perspective, knowledge on the reproductive success and in the phase shift process is essential to perform mass rearing for human food production. Our results suggest that multiple mating is not associated with itness beneits. Polyandry acts as a signal of phase shift through ofspring. We showed that hatchlings of gregarious females mated only once are smaller and green at 87.2% in irst egg pods and produced the solitary form of the desert locust. The coloration of ofspring in females mated with two males reaches only 15.2% of green forms versus 84.8% of mostly blacks. In this study, we showed that females mated more than two times with diferent males produce larger eggs, heavier, and black hatchlings characteristic of gregarious phase known in S. gregaria.

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Stimulatory effects of male accessory-gland extracts on the myogenicity and the adenylate cyclase activity of the oviduct of Locusta migratoria

Cited by 13 publications

References 12 publications

On the effect specificity of accessory gland products transferred by the love-dart of land snails

On the effect specificity of accessory gland products transferred by the love-dart of land snails

Roles of biogenic amines in regulating bioluminescence in the Australian glowworm Arachnocampa flava

Polyandry as a Signal of Phase Shift in Female Desert Locust Schistocerca gregaria

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