Ultrastructure of a chordotonal and a sinusoidal peg organ in the antenna of larval Aedes aegypti (L.)

Capa:Ultrastructure of a chordotonal and a sinusoidal peg organ in the antenna of larval Aedes aegypti (L.)

Autor(es): Zacharuk R Y,Blue S G


Resumo: Two specialized sensilla in the antenna of fourth-instar larvae of Aedes aegypti are described and their probable functions are speculated. One has an external peg innervated to the tip by a dendrite from a single neuron. The central portion of the dendrite is broken up into numerous fine branches within a large sinus formed by the trichogen cell around this region. The suggested function is osmo-reception. The second sensillum is of a simple chordotonal type. It is suspended within the antennal cavity and is attached within the antennal cone. Suggestions are that it functions either as a stretch receptor or as a monitor for low-frequency vibrations in the adjacent aquatic environment.


Imprenta: Canadian Journal of Zoology, v. 49, n. 9, p. 1223-1230


Identificador do objeto digital: 10.1139/z71-185


Descritores: Aedes aegypti - Cell ; Aedes aegypti - Pathogenesis


Data de publicação: 1971