CONTACT CHEMORECEPTORS ON THE OVIPOSITOR OF <i>LOCUSTA MIGRATORIA</i> L.

Rice, M. J.; McRae, Thomas M.

doi:10.1111/j.1440-6055.1976.tb01718.x

Cited by 12 publications

(6 citation statements)

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“…The mechanosensitive function of the longer hairs near the base of the cerci, which was morphologically similar to that of the sensilla trichodea in this study, has also been indicated (Zacharuk 1985). Rice and McRae (1976) indicated that sensilla on the ovipositors of insects provide information pertaining to the elicitation of oviposition behavior. Likewise, sensillae on the female terminalia of mosquito, Aedes aegypti (Linnaeus), have also been suggested as having function in copulation and oviposition behaviors (Rossignol and McIver 2005).…”

Section: Discussionmentioning

confidence: 99%

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

et al. 2008

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The fine structure of the reproductive system of Chrysomya megacephala (Fabricius), a blow fly species of medical importance, was studied using scanning electron microscopy (SEM) to contribute detailed morphological information on the external sexual organs or genitalia of this species. Analysis of the male genitalia or hypopygium revealed that the epandrium is a broad organ resembling a crescent shape, while the ejaculatory apodeme and aedeagal apodeme show similarity in their lengths. The cercus is significantly longer than the surstylus with its apical end being more or less rounded. Dense patches of long bristles, morphologically similar to the sensilla chaetica and sensilla trichodea, were found along the lower half of the cercus. The surstylus has a stout triangular shape, and the proximal half is greatly endowed with sensilla thought to be sensilla chaetica and sensilla trichodea. The aedeagus per se is prominent and has a clavate shape formed by the base theca and elongated phallus. The vesica of the phallus is a smooth bilobed structure, which curves inward. The juxta and juxta process are armed with many rows of strong spines resembling thorns in their appearance. The harpe is slender, recurved anteriorly, and distally pointed like a sickle. Regarding the female genitalia or ovipositor, SEM observation of the supraanal plate revealed it to be sclerotized and more or less triangular-shaped, lying between a pair of short cerci. Several types of sensilla were found on the supraanal plate, subanal plate and cercus, including the sensilla trichodea, sensilla basiconica, sensilla placodea, and probably, sensilla styloconica. The possible functions of sensilla distributed in particular regions of the fly genitalia are discussed.

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Section: Discussionmentioning

confidence: 99%

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

et al. 2008

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“…It suggests that most of the sensory hairs on the ovipositor are mechanosensory, but there are receptors for at least moisture content and salinity of the oviposition site on the ovipositor (Rice and McRae 1976). (In connection with this, it is interesting to note that we were never able to obtain digging CPG activity from preparations in which the abdomen was wet with saline.)…”

Section: Discussionmentioning

confidence: 87%

The role of sensory input in maintaining output from the locust oviposition digging central pattern generator

Belanger

Orchard

1992

J Comp Physiol A

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A quantitative EMG analysis is presented of the effects of deafferentation on the motor program for oviposition digging in the locust Locusta migratoria. We examined the activity of two groups of antagonistic muscles, the opener and closer muscles of the ventral ovipositor valves, in terms of the cycle frequency, burst duration, and relative burst onset times. There were no significant differences between the pattern frequency produced in intact, semi-intact, or deafferented animals within 10 min of the onset of the pattern. Over time, however, the pattern in deafferented animals showed a significant decrease in frequency, which it did not do in intact or semi-intact animals. Seven out of 10 deafferented preparations ceased producing the digging rhythm within 35 min of onset, but none of the semi-intact preparations did so. Mechanosensory hairs cover the ovipositor valves, and are in a position to supply sensory input to the digging pattern generator during the natural behaviour. When nerves carrying sensory axons from these hairs were electrically-stimulated tonically, the motor pattern was restored in deafferented animals. The effects of the stimulation outlasted the stimulation itself for several minutes, and could be repeated several times. We suggest that tonic input is necessary for the maintenance of the digging rhythm, possibly by maintaining levels of some modulatory substance(s) within the CNS. Abbreviations." CPG central pattern generator; DUM dorsal unpaired median neuron; EMG electromyogram; LC left ovipositor ventral closer muscle; LCDUR duration of activity of LC; LCFREQ frequency of activity bursts in LC; LCONSET onset of activity in LC relative to LO; LO left ovipositor ventral opener muscle; LODUR duration of activity of LO; LOFREQ frequency of activity bursts of LO; RO right ovipositor ventral opener muscle; ROD UR duration of activity in RO; ROFREQ frequency of activity bursts of RO

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“…Some entomophagous hymenopterans utilize abdominal chemoreceptors to distinguish between parasitized and nonparasitized hosts (Vinson, 1972;Ganesalingam, 1974). Abdominal contact chemosensory hairs were also found in the migratory locust, Locusta migratoria (Rice & McRae, 1976), the flea beetle Attica lythri (Phillips, 1978) and in the lepidopteran species Chilo partellus, Spodoptera littoralis (Chadha & Roome, 1980), Phthorimaea operculella (Valencia & Rice, 1982) and Eldana saccharina (Waladde, 1983). Abdominal contact chemosensory hairs were also found in the migratory locust, Locusta migratoria (Rice & McRae, 1976), the flea beetle Attica lythri (Phillips, 1978) and in the lepidopteran species Chilo partellus, Spodoptera littoralis (Chadha & Roome, 1980), Phthorimaea operculella (Valencia & Rice, 1982) and Eldana saccharina (Waladde, 1983).…”

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confidence: 99%

“…The ovipositor of the sheep blowfly, Lucilia cuprina, is provided with a number of chemosensilla containing at least three neurons sensitive to various chemicals (Rice, 1976). One of these neurons was found to be specifically sensitive to monovalent cations (Rice, 1977).…”

mentioning

confidence: 99%

“…In the desert locust, Schistocerca gregaria, oviposition is partly guided by sensory information on soil quality, acquired by chemosensilla located at the ovipositor (Norris, 1968). Abdominal contact chemosensory hairs were also found in the migratory locust, Locusta migratoria (Rice & McRae, 1976), the flea beetle Attica lythri (Phillips, 1978) and in the lepidopteran species Chilo partellus, Spodoptera littoralis (Chadha & Roome, 1980), Phthorimaea operculella (Valencia & Rice, 1982) and Eldana saccharina (Waladde, 1983).…”

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confidence: 99%

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Perception of the oviposition deterring pheromone by tarsal and abdominal contact chemoreceptors in Pieris brassicae

Klijnstra

Roessingh

1986

Entomologia Exp Applicata

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Perception of the oviposition deterring pheromone by contact chemoreceptors in female Pieris brassicae was studied employing a tip recording technique. Electrophysiological responses of tarsal taste hairs to eggwash solutions show a marked increase in frequency of spikes originating from only one sensory cell. This suggests that in foretarsal taste hairs females, apart from the glucosinolate cells also possess sense cells specifically sensitive to the oviposition deterring pheromone.Morphological studies by means of the scanning electron microscope revealed that the ovipositor of P. brassicae is provided with two groups of contact chemoreceptors. Electrophysiological recordings from these sensilla indicate the presence of at least three sensory cells, one of them being a mechanoreceptor. Stimulation with eggwash evokes a slight increase in spike frequency which cannot be ascribed to one particular sense cell. This indicates that abdominal taste hairs in some way may participate in the perception of the oviposition deterring pheromone. Responses to glucosinolates do not differ significantly from control stimulations.

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CONTACT CHEMORECEPTORS ON THE OVIPOSITOR OF LOCUSTA MIGRATORIA L.

Cited by 12 publications

References 3 publications

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

The role of sensory input in maintaining output from the locust oviposition digging central pattern generator

Perception of the oviposition deterring pheromone by tarsal and abdominal contact chemoreceptors in Pieris brassicae

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