Results 171 to 180 of about 7,331 (229)

The coelocapitular sensillum, an antennal hygro- and thermoreceptive sensillum of the honey bee, Apis mellifera L.

Cell and Tissue Research, 1983
The sensillum coelocapitulum, a hygro- and thermoreceptive sensillum of the honey bee, Apis mellifera, was investigated by electron microscopy. The cuticular apparatus of the sensillum is a mushroom-shaped protrusion, devoid of pores, set in a narrow cylindrical pit positioned centrally within a cuticular, shallow depression. There may be three or four
F Yokohari
exaly   +3 more sources

Electroantennogram and Single Sensillum Recording in Insect Antennae

Methods in molecular biology, 2013
Electrophysiology is an invaluable technique to quickly and quantitatively assess the response of the olfactory system to odor stimuli. For measuring the response of the insect antenna, two basic techniques exist, electroantennography and single sensillum recording.
Olsson, S., Hansson, B.
openaire   +4 more sources

Mechanoreceptive sensillum fields at the tarsal tip of insect legs

Journal of Morphology, 2018
AbstractGroups of mechanoreceptive sensilla form small sensory fields on the ventral rim of the most distal tarsomeres in insects. Within these fields two or three sensilla are located closely together. Anterior and posterior fields are found in all three pairs of legs with only a few exceptions.
Anna‐Christin Joel, Hana Adamova, Peter Bräunig   +2 more
openaire   +3 more sources

Electrical circuitry of an insect olfactory sensillum

Neurocomputing, 2001
Abstract A biophysical model of an insect olfactory sensillum in steady-state conditions is presented. The model has two distinguishing features. Firstly, it describes analytically the extracellularly recorded potential, thus closing formally the gap between theoretical models and experimental results.
Arthur Vermeulen
exaly   +2 more sources

Pattern, time of birth, and morphogenesis of sensillum progenitors inDrosophila

Microscopy Research and Technique, 1997
In this paper we describe the spatiotemporal pattern of sensillum progenitors (SOPs), as well as the way in which these cells segregate from the ectoderm and proliferate. The birthdate of SOPs was determined by applying short heat pulses to embryos carrying the Nintra construct [Struhl et al. (1993), Cell, 74:331-345] which allows the overexpression of
Amelia Younossi-Hartenstein, Volker Hartenstein   +1 more
exaly   +3 more sources

Sensillum types on the proboscis of the Lepidoptera: a review

Annales de la Société entomologique de France (N.S.), 2013
Summary The external surface of lepidopteran proboscides may bear six morphological types of sensilla: chaeticum, basiconicum, styloconicum, coeloconicum, filiformium, and campaniformium, with the first three types being the most common. There are four types of pore-system: aporous, uniporous, multiporous, and uniporous-multiporous.
M. Faucheux
openaire   +2 more sources

A dual function of the Notch gene in Drosophila sensillum development

Developmental Biology, 1990
We have investigated the function of the neurogenic gene Notch (N) during development of the adult sensilla of Drosophila. Heat pulses were applied to flies carrying the temperature-sensitive Notch allele Nts1 at different larval and pupal stages. We can show that the reduction of Notch+ function during a short interval prior to the onset of sensillum ...
V, Hartenstein, J W, Posakony
openaire   +3 more sources

Age Dependency of Response in an Insect Chemoreceptor Sensillum

Nature, 1970
THE electrical responses of contact chemoreceptors on the mouthparts of many species of Diptera can determine whether or not a fluid medium is ingested. In the blowfly Phormia terranovae, the responses of the large bristle-like sensilla, which occur in two aboral patches on the labellar lobes, regulate the extension of the proboscis and the opening of ...
C. Rees
openaire   +3 more sources

Ultrastructure and physiology of the hooded sensillum, a bimodal chemo‐mechanosensillum of lobsters

Journal of Comparative Neurology, 2001
AbstractThe antennules of decapod crustaceans are covered with thousands of chemosensilla that mediate odor discrimination and orientation behaviors. Most studies on chemoreception in decapods have focused on the prominent aesthetasc sensilla. However, previous behavioral studies on lobsters following selective sensillar ablation have revealed that ...
Holly S, Cate, Charles D, Derby
openaire   +3 more sources

Integument and Sensillum Auriforme of the Opisthosoma of Rhipicephalus appendiculatus (Acari: Ixodidae) [PDF]

Journal of Medical Entomology, 1996
The opisthosomal integument and sensilla auriformia of Rhipicephalus appendiculatus Neumann larvae, nymphs, females and males, both unfed, fed, and during molt, were examined by light and electron microscopy in relation to semiochemical production. The integument consists of epidermis, endocuticle, exocuticle, epicuticle, a superficial wax layer and a ...
Walker, Alan R., Lloyd, Carolyn M., McGuire, Kirsty, Harrison, Scott J., Hamilton, J. G.C.   +4 more
openaire   +3 more sources