Author/Editor		Lipovšek, S; Devetak, D; Štrus, J; Pabst, MA
Title		A contribution to the functional morphology of the femoral chordotonal organ in the green lacewing Chrysoperla carnea (Neuroptera)
Type		članek
Source		Anat Histol Embryol
Vol. and No.		Letnik 32
Publication year		2003
Volume		str. 291-6
Language		eng
Abstract		The femoral chordotonal organ (FCO) and the subgenual organ (SGO) of the green lacewing Chrysoperla carnea were examined by conventional light and confocal laser scanning microscopy in order to search for neuroactive substances which are used for neurotransmission in sensory cells of these organs. Antibodies against serotonin, histamine and choline acetyltransferase were tested immunohistochemically. In the FCO, antiserum against serotonin strongly labelled cell bodies and axons of about 16 sensory cells. In the proximal scoloparium all 12 sensory cells showed immunoreaction with antiserotonin. In the distal scoloparium only four of 40 sensory cells were immunoreactive. These results suggest that different neuroactive substances are employed as neurotransmitters in the FCO of the green lacewing and that the proximal scoloparium and the distal scoloparium are functionally differentiated. Contrary to the FCO in the locust, acetylcholine was not found as a neurotransmitter in the FCO of the green lacewing. Additionally, histamine showed a negative result in the sensory cells of the FCO. Other neuroactive substances seem to be used as transmitters in the SGO because none of the tested antibodies showed positive reaction.
Descriptors		MECHANORECEPTORS SENSE ORGANS NEUROTRANSMITTERS ARTHROPODS MICROSCOPY, CONFOCAL IMMUNOHISTOCHEMISTRY SEROTONIN HISTAMINE CHOLINE ACETYLTRANSFERASE FLUORESCENT ANTIBODY TECHNIQUE