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- Title
Fine structure of the antennal sensilla of the millipede Orthomorphella pekuensis (Polydesmida: Paradoxosomatidae).
- Authors
Chung, Kyung-Hwun; Moon, Myung-Jin
- Abstract
The fine structural characteristics of various sensory receptors on the antenna of a millipede, Orthomorphella pekuensis, were observed with field emission scanning electron microscopy. The antenna of this millipede has eight segments, called articles. On the surface of the antenna, there are a variety of sensory receptors, including olfactory and mechanical receptors. According to their morphological and fine structural characteristics, we could identify four basic types of antennal sensillum: chaetiform sensilla (CS), trichoid sensilla (TS), basiconic sensilla (BS) and apical cone sensilla (AS). The BS are divided further into three subtypes: large basiconic sensilla (BS1) on the 5th and 6th articles; small basiconic sensilla (BS2) on the 5th article; and a distinct type of basiconic spiniform sensilla (BS3) on the 7th article. The most prominent sensilla are four large AS on the distal tip of the 8th segment. Based on our results, we conclude that the main function of the CS and TS are related to mechanical reception, and that the BS and AS are likely to function in olfactory reception of volatile odors of plants, as these sensilla have base and apex pores, respectively.
- Subjects
MILLIPEDES; MYRIAPODA; POLYDESMIDA; SENSORY receptors; NEURAL receptors
- Publication
Entomological Research, 2006, Vol 36, Issue 3, p172
- ISSN
1738-2297
- Publication type
Article
- DOI
10.1111/j.1748-5967.2006.00029.x