By A. P. Gupta

The functionality of insect blood cells has lengthy questioned scientists. This much-needed quantity, first released in 1979, makes an attempt to give an explanation for the kinds and features of insect hemocytes, making a sturdy foundation from which paintings within the box may possibly continue. Insect Hemocytes had its origins in a symposium held on the XV foreign Congress of Entomology (1976). it's a coherent presentation whose members have been essentially the most eminent experts within the box.

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Extra resources for Insect Hemocytes: Development, Forms, Functions and Techniques

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50 /. A. Hoffmann et al. functions: hemopoietic or macrophagic. The interrelationship between these two functions is illustrated by the injection of iron saccharate, which stimulates the phagocytotic function of the reticular cells and, as a result, hampers the hemopoietic differentiation for several days; as a consequence, a marked decrease in the number of circulating hemocytes is observed (Fig. 22). Interestingly, severe hemorrhages in L. migratoria expel the reticular cells into circulation, as monitored by ultrastructural studies.

Insect Physiol. 22:865-9. Postembryonic development and differentiation: hemopoietic tissues and their functions in some insects J. A. HOFFMANN, D. ZACHARY, D. HOFFMANN, M. BREHELIN, Laboratory of General Biology, Louis Pasteur University, Research Group ofCNRS #118, 12 rue de VUniversite, 67000. Strasbourg, France A. 1. 2. 3. 4. 5. 6. 7. 1. Introduction The blood cells of many higher animals are formed in specialized tissues called hemocytopoietic tissues (blood-cell-making tissues; poiesis = "making") or hemopoietic tissues.

Erythrocephala, the hemopoietic centers appear in the last three abdominal segments of the blow fly larva; these cell accumulations are found on both sides of the dorsal vessel and extend to the two laterodorsal trunks (Fig. 24). They are irregular in outline and are not surrounded by any connective tissue sheath. No structural organization is recognized. Ultrastructural study shows that the accumulations contain both dv Fig. 24. Ventral view of hemopoietic tissue of C. erythrocephala larva. Tissue extends on both sides of dorsal vessel in posterior abdominal segments (abd.

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