Abstract
The diseases of insects may be grouped in two main categories: those in which the pathological syndrome is generated by the presence of an inf ect ive agent, and those in which a genetic defect underlies the pathological condition. Hemocytes are involved in combating deleterious effects in both cases. In the case of infection we can be certain that the hemocytes are reacting to stimuli emitted by the presence of the infective agent. Cell-mediated defense responses of insects to foreign bodies in the hemocoel include phagocytosis and nodule formation by the hemocytes (Salt, 1970). Similar types of behavior are exhibited by hemocytes in some genetic diseases (Oftedal, 1953). However, in the latter cases, analysis of the pathological syndrome is complicated by the dif ficulty in determining whether the genetic lesion directly affects the hemocytes or the hemocytes are reacting to gene-conditioned disorders elsewhere in the body.
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References
Burdette, W. J. (1954). Effect of ligation of Drosophila larvae on tumor incidence. Cancer Res., 14, 780–782.
Harshbarger, J. C. and Taylor, R. L. (1968). Neoplasms of insects. Ann. Rev. Entomol., 13, 159–190.
Madhavan, K. (1972). Induction of melanotic pseudotumors in Drosophila me lanogaster by juvenile hormone. Wilhelm Roux’ Archiv., 169, 345–349.
Nappi, A. J. (1973). Hemocytic changes associated with the encapsulation and melanization of some insect parasites. Exp. Parasitol., 33, 285–302.
Oftedal, P. (1953). The histogenesis of a new tumor in Drosophila melanogaster and a comparison with tumors of five other stocks. Zeit. Induk. Abstammungs-. Vererbung., 85, 408–422.
Perotti, M. E. and Bairati, A. (1968). Ultrastructure of the melanotic masses in two tumorous strains of Drosophila me lanogas ter (tu B 3 and Fr eckl ed). J. Invert. Patho l., 10, 122–138.
Rizki, T. M. (1957). Alterations in the hemocyte population of Drosophila melanogaster. J. Morph., 100, 437–458.
Rizki, T. M. (1957b). Tumor format ion in relation to metamorphosis in Drosophila melanogaster. J. Morph., 100, 459472.
Rizki, T. M. (1960). Melanotic tumor formation in Drosophila. J. Morph., 106, 147–158.
Rizki, T. M. (1962). Experimental analysis of hemocyte morphology in insects. Amer. Zool., 2, 247–256.
Rizki, T. M. (1969). Hemocyte encapsulation of Streptococci in Drosophila. J. Invert. Pathol., 12, 339–343.
Rizki, T. M. (1978). Circulatory System. In: “The Genetics and Biology of Drosophila”, Vol. 2 (M. Ashburner and T. R. F. Wright, eds.). Academic Press, London.
Rizki, T. M. and Rizki, R. M. (1959). Functional significance of the crystal cells in the larva of Drosophila melanogaster. J. Biophys. Biochem. Cytol., 5, 235–240.
Rizki, T. M., Rizki, R. M., Allard, L. F., and Bigelow, W. C. (1976). Micromanipulation of tissues and cells of the Drosophila larva in the SEM. Scanning Electron Microscopy, IITRI 2, 611–618.
Salt, G. (1970). “The Cellular Defense Reactions of Insects.” Cambridge University Press.
Walker, I. (1959). Die Abwehrreaktion des Wirtes Drosophila melanogaster gegen die Zoophage Cynipidae Pseudeucoila bochei Weld. Rev. Suisse Zool., 66, 569–632.
Wilson, L. P., King, R. C., and Lowry, J. L. (1955). Studies on the tu-W strain of Drosophila melanogaster. I. Phenotypic and genotypic characterization. Growth, 19, 215–244.
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Rizki, T.M., Rizki, R.M. (1978). The Role of Hemocytes in Melanotic Tumor Formation. In: Bulla, L.A., Cheng, T.C. (eds) Invertebrate Models for Biomedical Research. Comparative Pathobiology, vol 4. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1278-0_6
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DOI: https://doi.org/10.1007/978-1-4757-1278-0_6
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