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Titolo:
Morphology of a thermosensitive multipolar neuron in the infrared organ ofMerimna atrata (Coleoptera, Buprestidae)
Autore:
Schmitz, H; Schmitz, A; Bleckmann, H;
Indirizzi:
Univ Bonn, Inst Zool, D-53115 Bonn, Germany Univ Bonn Bonn Germany D-53115 iv Bonn, Inst Zool, D-53115 Bonn, Germany
Titolo Testata:
ARTHROPOD STRUCTURE & DEVELOPMENT
fascicolo: 2, volume: 30, anno: 2001,
pagine: 99 - 111
SICI:
1467-8039(200111)30:2<99:MOATMN>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRETCH-RECEPTOR; WING-HINGE; BEHAVIOR; BEETLE;
Keywords:
thermoreceptor; infrared receptor; multipolar neuron; remote sensing; boid snakes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Schmitz, H Univ Bonn, Inst Zool, Poppelsdorfer Schloss, D-53115 Bonn, Germany Univ Bonn Poppelsdorfer Schloss Bonn Germany D-53115 , Germany
Citazione:
H. Schmitz et al., "Morphology of a thermosensitive multipolar neuron in the infrared organ ofMerimna atrata (Coleoptera, Buprestidae)", ARTHROP STR, 30(2), 2001, pp. 99-111

Abstract

Two pairs of infrared (IR) organs are situated ventrolaterally on the second and third abdominal sternites of the Australian fire beetle Merimna atrata (Buprestidae). In ventral view, each IR organ has a round IR absorbing area under which a sensory complex is attached to the epidermis. The main component of the complex is a single large multipolar neuron and its mass of highly branched dendrites. All parts of this neuron are enveloped in glial cells. The proximal primary dendrites, which arise from the soma, finally branch into several hundred tightly packed terminal dendrites, which containmany mitochondria. We term this unusual morphology of the dendritic regiona terminal dendritic mass (TDM). Additionally, two chordotonal organs werefound in each sensory complex. Their somata are integrated in the complex and the dendrites extend to the periphery of the absorbing area. The bauplan of the dendritic region is reminiscent of the thermosensitive trigeminal nerve fibers innervating the absorbing structures in the IR receptors in boid and crotalid snakes. Because this multipolar neuron also functions as a thermoreceptor, another example of a functional analogy between insect and vertebrate sensory systems could be demonstrated. (C) 2001 Elsevier ScienceLtd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 05:44:37