Journal of Food, Agriculture and Environment

The effect of lower salinity on microstructure of antennary gland of Litopenaeus vannamei

Author(s):

Xugang He *, Guangfu Hu, Guangtao Lu

Recieved Date: 2012-09-26, Accepted Date: 2013-01-10

Abstract:

The antennary gland is Crustacea’s renal organ, which plays an important role for osmotic and ionic regulation in both freshwater and marine crustaceans. Knowledge on the histological changes under lower salinity condition and the structure of the antennary gland might help to raise Pacific white shrimp survival rate by providing guidelines for salinity acclimation. The microstructure of antennary gland of Litopenaeus vannamei was observed and the effect of lower salinity on this microstructure was studied. The results show that antennary gland consists of coelomosac, labyrinth and nephridial canal. The coelomosac lies in the center of the antennary gland, and takes up most of the gland. The coelomosac wall is composed of podocytes and basement membrance. The projections of the podocytes are connected with the basement membrance. The labyrinth closes the whole gland, and its columnar cells are possessed of microvilli and basal plasmalemmal invaginations. The nephridial canal cells also have microvilli but shorter, and its basal plasmalemmal invaginations are deeper and wider. When the shrimp was cultured with lower salinity, the clearance and the volume of coelomosac of its antennary gland are smaller, while the length and density of microvilli on the apical side of labyrinth and nephridial canal is longer and the basal plasmalemmal invaginations are wider. 

Keywords:

Antennary gland, microstructure, lower salinity

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Environment
Pages: 782-785

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