Journal of Insect Biotechnology and Sericology
Online ISSN : 1884-7978
Print ISSN : 1346-8073
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Ultrastructure of Maxillary Sensilla in the Silkworm, Bombyx mori: Differences among Strains?
Kiyoshi Asaoka
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2003 年 72 巻 2 号 p. 117-125

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Ultrastructure of sensilla on the maxilla of the silkworm, Bombyx mori L. was observed by light microscopy and by both scanning and transmission electron microscopy. Structural differences among different silkworm strains, if any, were also examined. Cuticular specializations reveal presence of eight sensilla on the maxillary galea and eight basiconic sensilla on the apical tip of the maxillary palpus. The two galeal styloconic sensilla are innervated by five neurons with one modified as a structure like a tubular body. Cuticular specializations of conical pegs of the galeal styloconic sensillum and the number of basiconic sensilla on the apical tip of the maxillary palpus vary among different strains and individuals. These structural differences are attributed to strain differences and not to feeding habits of strains.

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