[Bloom J. V. D. (1993) Individual differentiation in behaviour of honey bee workers (Apis mellifera L.). Insectes Sociaux 40: 345-361.10.1007/BF01253898]Search in Google Scholar
[Bradford M. M. (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Analytical Biochemistry 72: 248-254.10.1016/0003-2697(76)90527-3]Search in Google Scholar
[Britto F. B., Caetano F. H., Moraes R. L. M. S. D. (2004) Comparative analysis of morphological, structural and morphometric Patterns of Polistes versicolor (Olivier) (Hymenoptera: Vespidae) hypopharyngeal glands. Neotropical Entomology 33(3): 321-326.10.1590/S1519-566X2004000300007]Search in Google Scholar
[Brouwers E. V. M. (1982) Measurement of hypopharyngeal gland activity in the honey bee. Journal of Apicultural Research 21:193-198.10.1080/00218839.1982.11100541]Search in Google Scholar
[Brouwers E. V. M. (1983) Activation of the hypopharyngeal glands of honeybees in winter. Journal of Apicultural Research 22: 137-141.10.1080/00218839.1983.11100576]Search in Google Scholar
[Costa A. M. F., Cruz-Landim C. (1977) Estudocomparativo das glandulas do sistema salivar dos Apidae sociais (Hymenoptera). Revista Brasileira de Biologia 37(3): 649-663.]Search in Google Scholar
[Costa R. A. C. (2002) Glandulas Hipofaringeas. In: Cruz- Landim C., Abdalla F. C. (Eds.) Glandula sexocrinas das abelhas. Funpec. Brasil: 91-110.]Search in Google Scholar
[Costa R. A. C., Cruz-Landim C. (1999) Occurrence and morphometry of the hypopharyngeal gland in Scaptotrigona postica Lat. (Hymenoptera, Apidae,Meliponinae). Journal of Bioscience 24: 97-102.10.1007/BF02941113]Search in Google Scholar
[Costa R. A. C., Cruz-Landim C. (2000) Comparative study of hypopharyngeal gland in queens, workers and males of Scaptotrigona postica Latreille (Hymenoptera,Apidae, Meliponini). Biocell 24: 39-48.]Search in Google Scholar
[Crailsheim K. (1991) Interadult feeding of jelly in honeybee (Apis mellifera L.) colonies. Journal of Comparative Physiology 161B: 55-66.10.1007/BF00258746]Search in Google Scholar
[Crailsheim K., Stolberg E. (1989) Influence of diet, age and colony condition upon intestinal proteloytic activity and size of the hypopharyngeal glands in the honey bee (Apis mellifera L.). Journal of Insect Physiology 35: 595-602.10.1016/0022-1910(89)90121-2]Search in Google Scholar
[Cruz-Landim C. (1967) Estudo comparativo de algumas glndulas das abelhas (Hym., Apoidea) erespectiva simplicates evolutivas. Arquivos de Zoologia 15(3): 177-290.10.11606/issn.2176-7793.v15i3p177-290]Search in Google Scholar
[Cruz-Landim C., Costa R. A. C. (1998) Structure and function of the hypopharyngeal glands of hymenoptera:a comparative approach. Journal of Comparative Biology 3(2): 151-163.]Search in Google Scholar
[Cruz-Landim C., Hadek R. (1969) Ultrastructure of Apis mellifera hypopharyngeal gland. In: Proceedings of the VI Congress. Bern- Switzerland. 15-20 September 1969: 121-130.]Search in Google Scholar
[Cruz-Landim C., Saenz M. H. P. (1972) Estudo comparativo de algumas glndulas dos Vespoidea (Hymenoptera). Papéis Avulsos do Departamento de Zoologia 25(24): 251-263.]Search in Google Scholar
[Cruz-Landim C., Costa R. A. C., Silva-De-Moraes R. L. M. (2000) Hypopharyngeal gland function, glandular senescence and gland reactivation. In: Austin A. D. (Ed.) Hymenoptera: Evolution, Biodiversity and Biological Control. CSIRO. Australia: 54-59.]Search in Google Scholar
[Cruz-Landim C., Silva-De-Moraes R. L. M., Costaleonardo A. M. (1987) Ultra-estrutura das glndulashipo far Ìngeasde Melipona quadrifasciata anthidioides Lep. (Hymenoptera, Apidae). Naturalia 11: 89-96. ]Search in Google Scholar
[Deseyn J., Billen J. (2005) Age-dependent morphology and ultrastructure of the hypopharyngeal gland of Apis mellifera workers (Hymenoptera, Apidae). Apidologie 36: 49-57.10.1051/apido:2004068]Search in Google Scholar
[Dey S. (1993) A new rapid air-drying technique for scanning electron microscopy using tetramethylsilane: application to mammalian tissue. Cytobios 73: 17-23.]Search in Google Scholar
[Fluri P., Lscher M., Wille H., Gerig L. (1982) Changes in weight of the pharyngeal gland and the haemolymph titres of juvenile hormone, protein and vitellogenin in worker honey bees. Journal of Insect Physiology 28: 61-68.10.1016/0022-1910(82)90023-3]Search in Google Scholar
[Gama V., Cruz-Landim C. (1982) Estudo comparative das glndulas do sistema salivar de formigas (Hymenoptera, Formicidae). Naturalia 7: 145-165.]Search in Google Scholar
[Hrassnigg N., Crailsheim K. (1998) Adaptation of hypopharyngeal gland development to the brood status of honeybee (Apis mellifera L.) colonies. Journal of Insect Physiology 44: 929-939.10.1016/S0022-1910(98)00058-4]Search in Google Scholar
[Huang Z. Y., Robinson G. (1996) Regulation of honey bee division of labor by colony age demography. Behavioral Ecology Sociobiology 39: 147-158.10.1007/s002650050276]Search in Google Scholar
[Huang Z. Y., Otis G. W., Teal P. E. A. (1989) Nature of brood signal activating the protein synthesis of hypopharyngeal gland in honeybees Apis mellifera (Apidae: Hymenoptera). Apidologie 20: 455-464.10.1051/apido:19890601]Search in Google Scholar
[Humason G. L. (1962) Animal tissue techniques. W. H. Freeman and Co. San Francisco. 468 pp. Klaudiny J., Hanes J., Kulifajova J., Albert S. (1994) Molecular cloning of two cDNAs from the head of the nurse honey bee (Apis mellifera L.) for coding related proteins of royal jelly. Journal of Apicultural Research 33: 105-111. ]Search in Google Scholar
[Knecht D., Kaatz H. H. (1990) Patterns of larval food production by hypopharyngeal glands in adult worker honey bees. Apidologie 21: 457-467.10.1051/apido:19900507]Search in Google Scholar
[Kratky E. (1931) Morphologie und Physiologie der DrseninKpf und Thorax der Honigbiene (Apis mellifera L.). Zeitschriftfür wissenschaft liche Zoologie 139: 120-200.]Search in Google Scholar
[Kubo T., Sasaki M., Nakamura J., Sasagawa H., Ohashi K., Takeuchi H., Natori S. (1996) Change in the expression of hypopharyngeal gland proteins of the worker honeybees (Apis mellifera L.) with age and/or role. Journal of Biochemistry 119: 291-295.10.1093/oxfordjournals.jbchem.a021237]Search in Google Scholar
[Lauer S. M. S. (1975) Estrutura macro e microscUpica das glndulas do sistemasalivarnascastas de Bombusatratus Franklin, 1913 (Hymenoptera-Apidae). Disserta o de Mestrado. Universidade Federal doParan. Curitiba. 74 pp.]Search in Google Scholar
[Michener C. D. (1974) True honey bees. In: Michener C. D. (Ed.) The social behavior of the bees. Harvard University Press. Cambridge. Massachussetts: 347-349.]Search in Google Scholar
[Mohammedi A., Crauser D., Paris A., Conte Y. L. (1996) Effect of a brood pheromone on honeybee hypopharyngeal glands. Neuroscience 319: 769-772.]Search in Google Scholar
[Moritz B., Crailsheim K. (1987) Physiology of protein digestion in the midgut of the honeybee (Apis mellifera L.). Journal of Insect Physiology 33: 923-931.10.1016/0022-1910(87)90004-7]Search in Google Scholar
[Ohashi K., Natori S., Kubo T. (1999) Expression of amylase and glucose oxidase in the hypopharyngeal gland with an age-dependent role change of the worker honeybee (Apis mellifera L.). European Journal of Biochemistry 265: 127-133.10.1046/j.1432-1327.1999.00696.x10491166]Search in Google Scholar
[Origin Pro 8 (Origin Lab, Northampton, MA).]Search in Google Scholar
[Patel N. G., Haydak M. H., Gochnauer T. A. (1960) Electrophoretic components of the proteins in honeybee larval food. Nature 186: 633-634.10.1038/186633a014430832]Search in Google Scholar
[Ribbands R. (1953) The behaviour and social life of the honeybees. Bee Research Association. London. 352 pp.]Search in Google Scholar
[Silva R. L. M. D. M., Caramello K. A., Feddersen A. Jr. (1985) Estudoscitofotom Etricosdasg lndulashipo faringeas de operrias de Scaptotrigona posticae Melipona quadrifasciata anthidioides Lep. (Hymenoptera, Apidae). Naturalia 10: 147-155.]Search in Google Scholar
[Snodgrass R. E. (1956) Anatomy of the honeybee. New York. Comstock Publisher Association. Ithaca. 334 pp.]Search in Google Scholar
[Suwannapong G., Chaiwongwattanakul S., Benbow M. E. (2010) Histochemical comparison of the hypopharyngeal gland in Apis cerana Fabricius, 1793 workers and Apis mellifera Linnaeus, 1758 workers. Psyche 2010(2010): 1-7. DOI: 10.1155/2010/181025 10.1155/2010/181025]Search in Google Scholar