ULTRASTRUCTURAL STUDIES AND FUNCTION OF GREEN GLANDS (ANTENNAL GLANDS) IN CRAYFISH ASTACUS LEPTODACTYLUS

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KHODABANDEH SABER; SHOKRI N.

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Journal: IRANIAN JOURNAL OF BIOLOGY Year:2009 | Volume:22 | Issue:1 Page(s): 124-136

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Information Journal Paper

Title

ULTRASTRUCTURAL STUDIES AND FUNCTION OF GREEN GLANDS (ANTENNAL GLANDS) IN CRAYFISH ASTACUS LEPTODACTYLUS

Author(s)

KHODABANDEH SABER | SHOKRI N. | Issue Writer Certificate

Keywords

ASTACUS LEPTODACTYLUSQ3

ANTENNAL GLANDSQ3

IMMUNOLOCALIZATIONQ3

NA+- K+ATPASEQ3

Abstract

In this study, the general morphology, ultrastructure of the cells and the localization of Na+- K+ ATPase were examined in the ANTENNAL GLANDS of ASTACUS LEPTODACTYLUS. Each gland is composed of four units, including the coelomosac, the labyrinth, the tubule and a voluminous bladder, linked by a short duct to the urinary pore. Ultrastructural observations have shown that the cells of coelomosac possess podocytic feature. These cells have Golgy complex systems, vacuoles, endocytotic vesicles and they possess distinctive pedicels. The labyrinth cells (cuboidal and columnar cells) present basal membrane infoldings, apical vesicles, apical microvilli and apical cytoplasmic extrusions. The tubule is consist of two sub-unit (proximal and distal tubules) and the cells present in common basal membrane infoldings associated with mitochondria, and cytoplasm including numerous vacuoles and mitochondria. These cells have not apical microvilli and they also present distinctive characters in each sub-unit. Na+-K+ ATPase was detected through immunofluorescene in the tubule and bladder cells with an increasing concentration. A weak fluorescence was also shown in labyrinth and no immunofluorescence was detected in the coelomosac. The cells of the tubules and the bladder present morphological and enzymatic feature of ionocytes. Thus, the ANTENNAL GLANDS of the A. leptodactylus possess active ion exchanges capabilities and participles in osmoregulation.

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