Structure of Raster in Melolonthine Larvae

Autor:	Liza J Miller, Bronwen W. Cribb, C. D. Hull, David K. Yeates, Christopher J. Moore
Rok vydání:	1998
Předmět:	Mechanoreceptor Larva medicine.anatomical_structure Insect Science Cuticle Ultrastructure medicine Seta Anatomy Biology Lepidiota frenchi Signal on Rhopaea magnicornis
Zdroj:	ResearcherID
ISSN:	1938-2901 0013-8746
DOI:	10.1093/aesa/91.2.202
Popis:	Ultrastructural and electrophysiological investigations carried out on larval rasters of Rhopaea magnicomis Blackburn, Lepidiota frerzclzi Black, and Antitr-ogus consanguineus Blackburn revealed that the raster is a complex of mechanoreceptive setae. Chemical and morphological investigations provide no evidence that the raster is a site for chemical emissions; however, species differences in hydrocarbon profiles were found among larval cuticle samples. Ultrastructure of the setae (pali) show that each seta is innervated by a single dendrite which ends in a tubular body at the base of the seta. The connection with the seta is on the proximal side, which corresponds to the production of a phasic-tonic electrophysiological signal on downward deflection. The dendrite is surrounded by a granular, electron-dense sheath which has inwardly directed arms distally and outwardly directed arms proximally. Two sheath cells are present, 1 forming a large receptor lymph cavity which is lamellate and lined with electron-dense material.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99f9fa741f8f1a20cbc11a3534b1dfd9 https://doi.org/10.1093/aesa/91.2.202 Zobrazit plný text záznamu