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KMID : 0381920090390020141
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Korean Journal of Microscopy
2009 Volume.39 No. 2 p.141 ~ p.147
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Microstructure of the Antennal Sensilla in the Millipede Anaulaciulus koreanus koreanus (Julida: julidae)
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Cheong Kyung-Hoon
Moon Myung-Jin
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Abstract
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The antennae of millipedes have a prominent function in detecting various types of environmental stimuli, and structural modification of the antennae is closely associated with the degree of sense recognition. Although the biological significance of the antennal sensillae to millipedes are widely understood, the structure and function of the antennal sensillae are still not clear and more precise analysis is required. We have analysed the ultrastructural characteristics of the antennal sensillae in a millipede Anaulaciulus koreanus koreanus using field emission scanning electron microscopy (FESEM). According to their morphological and substructural features, we could identify three different types of antennal sensillae as follows: trichoid sensilla (TS), chaetiform sensilla (CS) and basiconic sensilla (BS). The TS on the articles are long, blunt-tipped, almost straight hairs with deep longitudinal grooves in their lower parts whereas, the CS are long, sickleshaped bristles with longitudinal grooves acuminating toward the tip. The BS can be subdivided further into three subtypes which are the large-sized basiconic sensilla (BS1), the small-sized basiconic sensillae (BS2) and the spiniform basiconic sensillae (BS3). The BS between the terminal segment and distal margins of the other segments are clearly discriminated in this species.
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KEYWORD
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Antenna, Sensilla, Millipede, Anaulaciulus koreanus koreanus
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