TRACHEAL ULTRASTRUCTURE OF PROTURA (INSECTA, APTERYGOTA)

Journal article

The tracheal systems of Sinentomon and Eosentomon (Apterygota : Protura) were examined in thin sections and compared with the tracheae of collembolan, Allacma. The tracheal system of Protura consists of spiracles and tracheae. The spiracle is a simple, concave cuticular cavity known as an atrium. A globular chamber is present between the atrium and trachea. The atrium of Eosentomon is decorated with ridges and has 2 small openings to tracheal recesses beside the central tracheal opening. The tracheae of Protura are characterized by a high frequency of taenidia and the absence of intima folds and intertaenidial spaces. The taenidia of Sinentomon have a rectangular section and those of Eosentomon are gable-shaped. The results also suggest that the tracheal recess of Eosentomon is a kind of stigmatic gland. The tracheal structure of Protura was compared with that of collembolans, insects, and other arthropods, and discussed in terms of phylogeny. © 1993.

Authors: Xue, L; Dallai, R; Yin, W

• Publication status: Published
• Journal: INTERNATIONAL JOURNAL OF INSECT MORPHOLOGY and EMBRYOLOGY
• Volume: 22
• Issue: 1
• Pages: 13-23
• Publication date: 1993-01-01
• DOI: 10.1016/0020-7322(93)90030-5
• ISSN: 0020-7322
• Language: English
• Keywords: SINENTOMON; ALLACMA; EOSENTOMON; SPIRACLE; PHYLOGENY; TRACHEAS; STIGMATIC GLAND; TRACHEAL RECESS