The fine structure of the rectal pads of Zorotypus caudelli Karny (Zoraptera, Insecta)

The fine structure of the rectal pads of Zorotypus caudelli Karny (Zoraptera, Insecta)

The rectal pads of a species of the controversial polyneopteran order Zoraptera were examined using histological sections and TEM micrographs. Six pads are present along the thin rectal epithelium. Each pad consists of a few large principal cells surrounded by flattened junctional cells, which exten...

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Veröffentlicht in:Ventricular Restraint Improves Outcomes in HF Patients with CRT. - 2011. - Amsterdam [u.a.]
1. Verfasser: Dallai, R. (VerfasserIn)
Weitere Verfasser: Mercati, D. (BerichterstatterIn), Mashimo, Y. (BerichterstatterIn), Machida, R. (BerichterstatterIn), Beutel, R.G. (BerichterstatterIn)
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016transfer abstract
Zugriff auf das übergeordnete Werk:Ventricular Restraint Improves Outcomes in HF Patients with CRT
Schlagworte:Zoraptera ultrastructure intercellular Junctions Insect excretory organs Hindgut ultrastructure
Umfang:9
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520 |a The rectal pads of a species of the controversial polyneopteran order Zoraptera were examined using histological sections and TEM micrographs. Six pads are present along the thin rectal epithelium. Each pad consists of a few large principal cells surrounded by flattened junctional cells, which extend also beneath the principal cells. The cells are lined by a thin apical cuticle. No basal cells and no cavity have been observed beneath the pad. Principal cells have a regular layer of apical microvilli and are joined by intercellular septate junctions, which are interrupted by short dilatations of the intercellular space. At these levels the two adjacent plasma membranes are joined by short zonulae adhaerentes. In the cytoplasm, a rich system of strict associations between lateral plasma membranes and mitochondria forms scalariform junctions. Rectal pads share ultrastructural features with similar excretory organs of several neopteran groups, in particular with Blattodea (roaches and termites) and Thysanoptera, and are involved in fluid reabsorption and ion regulation. 
520 |a The rectal pads of a species of the controversial polyneopteran order Zoraptera were examined using histological sections and TEM micrographs. Six pads are present along the thin rectal epithelium. Each pad consists of a few large principal cells surrounded by flattened junctional cells, which extend also beneath the principal cells. The cells are lined by a thin apical cuticle. No basal cells and no cavity have been observed beneath the pad. Principal cells have a regular layer of apical microvilli and are joined by intercellular septate junctions, which are interrupted by short dilatations of the intercellular space. At these levels the two adjacent plasma membranes are joined by short zonulae adhaerentes. In the cytoplasm, a rich system of strict associations between lateral plasma membranes and mitochondria forms scalariform junctions. Rectal pads share ultrastructural features with similar excretory organs of several neopteran groups, in particular with Blattodea (roaches and termites) and Thysanoptera, and are involved in fluid reabsorption and ion regulation. 
650 7 |a Zoraptera ultrastructure  |2 Elsevier 
650 7 |a intercellular Junctions  |2 Elsevier 
650 7 |a Insect excretory organs  |2 Elsevier 
650 7 |a Hindgut ultrastructure  |2 Elsevier 
700 1 |a Mercati, D.  |4 oth 
700 1 |a Mashimo, Y.  |4 oth 
700 1 |a Machida, R.  |4 oth 
700 1 |a Beutel, R.G.  |4 oth 
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