Enzymatic activity of the hypopharyngeal gland extract from workers and males of Scaptotrigona postica Lat. (Hymenoptera, Apidae, Meliponini)
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2003-03-15
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The objective of this research was to contribute to elucidation of the function of the hypopharyngeal glands of S. postica in enzyme production, using the Api Zym kit (Bio Mérieux). Dealing with a comparative analysis between the enzymatic content of the hypopharyngeal gland extracts from newly emerged, nurse and forager workers, as well as, newly emerged males and males mature for mating of S. postica. The hypopharyngeal glands from nurse workers of Apis mellifera, that produce part of the royal jelly, were used for comparison. While in A. mellifera, the hypopharyngeal glands are present only in workers, in S. postica, the hypopharyngeal glands are present and functioning in all adult individuals of the colony. The higher enzymatic activity was observed in the hypopharyngeal gland extracts from nurse workers and may be related to a larger demand for energy, compared to other individuals. The occurrence of large quantities of leucine arylamidase in all individuals may mean that protein processing is happening.
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Sociobiology, v. 41, n. 2, p. 269-279, 2003.
