Changes in the haemocyte profile of Spilostethus hospes (Fab) (Heteroptera: Lygaeidae) in relation to eclosion, sex and mating.
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Date
1996-12
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Abstract
Five types of haemocytes have been identified in the haemolymph of Spilostethus hospes.
Their morphology and micrometric measurements have been provided. Changes in the total and
differential haemocyte population [total haemocyte count (THC) and differtial haemocyte count
(DHC)] as well as in the absolute number of haemocytes in circulation have been assessed in relation
to eclosion, sex and mating. The haemogram profile was studied prior to and immediately after
eclosion and also prior to and after copulation. Though the THC was not significantly different
immediately before and after eclosion, there was a significant increase in total count prior to
copulation. Mated females registered an increase in total count but there was no appreciable change in
the mated males. Granulocytes were the most abundant of the haemocyte types in both the sexes and
mating caused a significant increase in the plasmatocyte count in females. Changes in the blood
volume as well as the mitotic activity of the haemocytes is also discussed.
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Keywords
Spilostethus hospes, haemocyte, prohaemocyte, plasmatocyte, granulocyte, spherulocyte, adipohaemocyte, blood volume, mitotic index
Citation
Sanjayan K P, Ravikumar T, Albert S. Changes in the haemocyte profile of Spilostethus hospes (Fab) (Heteroptera: Lygaeidae) in relation to eclosion, sex and mating. Journal of Biosciences. 1996 Dec; 21(6): 781-788.