The ultrastructure of campaniform sensilla on the eye of the cricket, Gryllus campestris

Müller, Marie-Luise; Honegger, Hans‐Willi; Nickel, E.; Westphal, Christel

doi:10.1007/bf00236731

Cited by 8 publications

(2 citation statements)

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“…In the cricket Gryllus campestris, the surface of the eye is covered with interommatidial bristles and campaniform sensilla (Honegger, 1977;Muller et al, 1978). Severing the branch of the dorsal tegumentary nerve (DTN), which contains the axons of these receptors, makes it impossible to elicit eye-cleaning behavior via mechanical or chemical stimulation of the eye's surface (Honegger, Reit, and Muller, 1979).…”

Section: Introductionmentioning

confidence: 99%

“…A possible additional source of sensory influence on mantis head-cleaning behavior could be at the eye's surface, sensory receptors of various types being quite common on the insect cornea (Hinton, 1970;Chi and Carlson, 1976). In the cricket Gryllus campestris, the surface of the eye is covered with interommatidial bristles and campaniform sensilla (Honegger, 1977;Muller et al, 1978). Severing the branch of the dorsal tegumentary nerve (DTN), which contains the axons of these receptors, makes it impossible to elicit eye-cleaning behavior via mechanical or chemical stimulation of the eye's surface (Honegger, Reit, and Muller, 1979).…”

Section: Introductionmentioning

confidence: 99%

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Interommatidial sensilla of the praying mantis: Their central neural projections and role in head‐cleaning behavior

Zack

Bacon

1981

J. Neurobiol.

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The compound eye of the praying mantis is covered with approximately 600 bristles and campaniform sensilla. Their afferents project to the brain, and to the suboesophageal and prothoracic ganglia. Cutting the eye branch of the dorsal tegumentary nerve (DTN), the peripheral nerve innervating the corneal sensilla, makes it impossible to initiate head grooming by tactile stimulation of the eye. This stimulus is a strong releaser of grooming behavior in normal animals. Head grooming can be initiated, after cutting the eye branch of the DTN, by stimulation of the frons (the operation leaves the sensory innervation of this part of the cuticle intact). Frame-by-frame analysis of films of head grooming after cutting the nerve reveals a reduction of the speed at which the forelimb is brushed across the surface of the head and eye. The significance of this finding is discussed in terms of a putative feedback loop from the corneal sensilla to the motor neurons controlling the grooming movements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interommatidial sensilla of the praying mantis: Their central neural projections and role in head‐cleaning behavior

Zack

Bacon

1981

J. Neurobiol.

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The mechanosensory apparatus of the femoral tactile spine of the cockroach, Periplaneta americana

French

Sanders

1981

Cell Tissue Res.

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Tactile spines are large cuticular sense organs that appear to provide insects with a sense of touch which is spatially coarse but of great sensitivity. Cockroach legs have a number of these spines on each leg and a particularly prominent spine on the end of each femur, the femoral tactile spine. The ease of recording afferent activity from this spine during mechanical stimulation has made it one of the most thoroughly studied insect mechanoreceptors and yet it has never been examined by electron microscopy. We report here the results of an examination of the femoral tactile spine by both scanning and transmission electron microscopy, as well as by light microscopy. The spine is shown to be innervated by a single sensory bipolar neuron with its soma located in the base of the spine. A canal through the wall of the spine leads to the outside and emerges just above the junction between the base of the spine and its articulating socket membrane. The sensory dendrite of the neuron passes from the soma through this canal and forms a modified ciliary sensory ending with the typical dendritic sheath and dense tubular body that is characteristic of insect mechanosensory cuticular sensilla. The tubular body is embedded in a cuticular terminal plug which closes the exterior end of the canal but appears to be fastened to the spine by a very flexible ring of cuticle. This plug is connected to the socket membrane by a specialized socket attachment which presumably serves to move the plug relative to the wall of the spine during movement of the spine within the socket. The morphology of this sensillum is discussed in terms of the possible ways in which it is stimulated by movements of the spine and also in light of the dynamic behaviour of the receptor which is now very well described.

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The coxo-trochanteral muscle receptor organ of locusts

1986

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The ultrastructure of campaniform sensilla on the eye of the cricket, Gryllus campestris

Cited by 8 publications

References 10 publications

Interommatidial sensilla of the praying mantis: Their central neural projections and role in head‐cleaning behavior

Interommatidial sensilla of the praying mantis: Their central neural projections and role in head‐cleaning behavior

The mechanosensory apparatus of the femoral tactile spine of the cockroach, Periplaneta americana

The coxo-trochanteral muscle receptor organ of locusts

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