An Accessory Olfactory Pathway in Lepidoptera: the Labial Pit Organ and Its Central Projections in Manduca Sexta and Certain Other Sphinx Moths and Silk Moths

Overview

Journal Cell Tissue Res

Specialties Anatomy & Histology
Cell Biology

Date 1986 Jan 1

PMID 3742559

Citations 42

Authors

K S Kent

I D Harrow

P QUARTARARO

J G Hildebrand

Affiliations

Soon will be listed here.

Abstract

In the hawkmoth, Manduca sexta, the third segment of each labial palp contains a pit, which houses a densely packed array of sensilla. We have named this structure the labial pit organ (LPO). The sensilla within the pit are typical of olfactory receptors, characterized by a grooved surface, wall pores, and pore tubules. Axons arising from receptor cells that innervate these sensilla project bilaterally to a single glomerulus in each antennal lobe. We have compared this central projection with that in three other species of Manduca (M. quinquemaculata, M. dilucida, and M. lanuginosa) and in the silkmoths Antheraea polyphemus and Bombyx mori. A bilateral projection to a single glomerulus in each antennal lobe is present in all cases. We suggest that the LPO serves as an accessory olfactory organ in adult Lepidoptera.

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References

ALTNER H, Routil C, Loftus R . The structure of bimodal chemo-, thermo-, and hygroreceptive sensilla on the antenna of Locusta migratoria. Cell Tissue Res. 1981; 215(2):289-308. DOI: 10.1007/BF00239116. View

Stewart W . Functional connections between cells as revealed by dye-coupling with a highly fluorescent naphthalimide tracer. Cell. 1978; 14(3):741-59. DOI: 10.1016/0092-8674(78)90256-8. View

ALTNER H, STETTER H, Wohlrab I . Poreless sensilla with inflexible sockets. A comparative study of a fundamental type of insect sensilla probably comprising thermo- and hygroreceptors. Cell Tissue Res. 1983; 234(2):279-307. DOI: 10.1007/BF00213769. View

Tyrer N, Bell E . The intensification of cobalt-filled neurone profiles using a modification of Timm's sulphide-silver method. Brain Res. 1974; 73(1):151-5. DOI: 10.1016/0006-8993(74)91014-2. View

Bacon J, ALTMAN J . A silver intensification method for cobalt-filled neurones in wholemount preparations. Brain Res. 1977; 138(2):359-63. DOI: 10.1016/0006-8993(77)90753-3. View

Pareto A . [Spatial distribution of sensory antennal fibres in the central nervous system of worker bees]. Z Zellforsch Mikrosk Anat. 1972; 131(1):109-40. View

Bermond N . [Enigmatic sensors in the antenna of certain Coeloptera. Comparative, electron microscopy study]. Z Zellforsch Mikrosk Anat. 1972; 127(1):9-33. View

Lazar G . Application of cobalt-filling technique to show retinal projections in the frog. Neuroscience. 1978; 3(8):725-36. DOI: 10.1016/0306-4522(78)90068-4. View

Sanes J, Hildebrand J . Structure and development of antennae in a moth, Manduca sexta. Dev Biol. 1976; 51(2):280-99. View

10.

Stocker R, Singh R, Schorderet M, Siddiqi O . Projection patterns of different types of antennal sensilla in the antennal glomeruli of Drosophila melanogaster. Cell Tissue Res. 1983; 232(2):237-48. DOI: 10.1007/BF00213783. View

11.

Boeckh J, Sandri C, Akert K . [Sensory inputs and synaptic connections in the insect CNS. Experimental degeneration in the antennal afferent pathway in the supraesophageal ganglia of flies and cockroaches]. Z Zellforsch Mikrosk Anat. 1970; 103(3):429-46. View

12.

Fleming A, Vaccarino F, Tambosso L, Chee P . Vomeronasal and olfactory system modulation of maternal behavior in the rat. Science. 1979; 203(4378):372-4. DOI: 10.1126/science.760196. View

13.

Marques D . Roles of the main olfactory and vomeronasal systems in the response of the female hamster to young. Behav Neural Biol. 1979; 26(3):311-29. DOI: 10.1016/s0163-1047(79)91300-1. View

14.

McIver S . Fine structure of pegs on the palps of female culicine mosquitoes. Can J Zool. 1972; 50(5):571-6. DOI: 10.1139/z72-078. View

15.

Rice M, Galun R, Margalit J . Mouthpart sensilla of the tsetse fly and their function. 3. Labrocibarial sensilla. Ann Trop Med Parasitol. 1973; 67(1):109-16. DOI: 10.1080/00034983.1973.11686868. View

16.

ALTNER H, Tichy H, Altner I . Lamellated outer dendritic segments of a sensory cell within a poreless thermo- and hygroreceptive sensillum of the insect Carausius morosus. Cell Tissue Res. 1978; 191(2):287-304. DOI: 10.1007/BF00222425. View

17.

Kent K, Hildebrand J . Cephalic sensory pathways in the central nervous system of larval Manduca sexta (Lepidoptera : Sphingidae). Philos Trans R Soc Lond B Biol Sci. 1987; 315(1168):1-36. DOI: 10.1098/rstb.1987.0001. View

18.

Stocker R, Schorderet M . Cobalt filling of sensory projections from internal and external mouthparts in Drosophila. Cell Tissue Res. 1981; 216(3):513-23. DOI: 10.1007/BF00238648. View