Zinc methionine or zinc sulphate supplementation modulate the development of the hypopharyngeal gland and expression of major royal jelly protein genes in Apis mellifera L. bees
Abstract:We analysed whether the source of zinc (inorganic and organic) influences the morphology of the hypopharyngeal gland (HPG) and the relative expression of major royal jelly protein (MRJP) genes in nursing bees at 6 days of age. For this, 15 colonies of Apis mellifera bees were subjected to the following treatments: Zn0 (control), zinc methionine (50 ppm) and zinc sulphate monohydrate (50 ppm) during the off‐season (characterized by food reduction). MRJP1 and MRJP5 gene expression was analysed using real‐time PC… Show more
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