Biomaterial Database

[Ultrastructure of the antennal sensillae of the bug, Rhodnius prolixus (Hemiptera, Reduviidae)]. 1980

S Iu Chaĭka

On the antenna of the bug R. prolixus we found numerous receptors which can be classified into three categories: mechanoreceptors (sensilla chaetica), olfactory (sensillae trichodea, basiconica and caeloconica) and gustatory (sensilla trichodea) receptors. The number, size and distribution on the antenna of each type have been recorded. A description of each of these sense organs is given. Tactile hairs are present on all of the antennal segments while thin-walled chemoreceptors are limited to segments 3 and 4. The tactile hairs are innervated by a single bipolar sensory cells. In fine structure each dendrite reveals the following successive regions; a broad inner segment, a ciliary region, a region with neurotubules. Two types of thin-walled sensilla trichoidae differ in the structure of the walls and internal parts. It was shown that the cuticular part of the olfactory trichoid hairs has pores; the cuticular part of the basiconic sensillae had longitudinal canals.

UI	MeSH Term	Description	Entries
D007814	Larva	Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.	Maggots,Tadpoles,Larvae,Maggot,Tadpole
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012239	Rhodnius	A genus of the subfamily TRIATOMINAE. Rhodnius prolixus is a vector for TRYPANOSOMA CRUZI.
D012679	Sense Organs	Specialized organs adapted for the reception of stimuli by the NERVOUS SYSTEM.	Sensory System,Organ, Sense,Sense Organ,Sensory Systems,System, Sensory
D014225	Triatominae	A subfamily of assassin bugs (REDUVIIDAE) that are obligate blood-suckers of vertebrates. Included are the genera TRIATOMA; RHODNIUS; and PANSTRONGYLUS, which are vectors of TRYPANOSOMA CRUZI, the agent of CHAGAS DISEASE in humans.