Variations in circulating hemocytes are affected by age and caste in the stingless bee Melipona quadrifasciata

Die Naturwissenschaften
Samira Veiga RavaianoGustavo Ferreira Martins

Abstract

The insect immune system faces various challenges; particularly in social bees, caste system and age polyethism expose individuals to numerous environmental and working conditions. However, little is known about how cellular defenses in social bees may be organized to respond to a variety of immune challenges. Here, we describe the morphological features and the total and differential counts of hemocytes in different female classes (newly emerged workers, nurses, foragers, and virgin queens) of the eusocial stingless bee Melipona quadrifasciata. Granulocytes and prohemocytes were, respectively, the most and the least abundant cells among all classes of females. Furthermore, there were more prohemocytes in virgin queens than in foragers. The total number of hemocytes was smaller in foragers, whereas the largest number was observed in nurse workers. This reduced amount of hemocytes in foragers might allow energy savings to perform colony activities such as foraging and defense. Foragers also had the biggest hemocytes (either prohemocytes, granulocytes, or plasmatocytes) in comparison to the other classes of females, which might have arisen as a compensation for the reduction in number of these cells during aging. These results su...Continue Reading

References

Feb 13, 2001·Developmental Biology·R LanotM Meister
Feb 13, 2001·Journal of Insect Physiology·M Yamashita, K Iwabuchi
Sep 7, 2001·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·J C BedickD W Stanley
Sep 13, 2002·Insect Biochemistry and Molecular Biology·M D Lavine, M R Strand
Apr 29, 2005·Micron : the International Research and Review Journal for Microscopy·F A BraynerC A Peixoto
Mar 11, 2006·Journal of Insect Physiology·Carlos Ribeiro, Michel Brehélin
May 16, 2006·Immunobiology·Pikul JiravanichpaisalKenneth Söderhäll
Mar 3, 2007·Micron : the International Research and Review Journal for Microscopy·H C R AraújoF A Brayner
Apr 18, 2007·Proceedings of the National Academy of Sciences of the United States of America·Miguel CoronaGene E Robinson
Jan 1, 2008·Journal of Insect Physiology·Martin R SchmidJürgen Tautz
Aug 19, 2008·The American Naturalist·Marlene Zuk, Andrew M Stoehr
Oct 18, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Sylvia Cremer, Michael Sixt
Nov 17, 2009·Micron : the International Research and Review Journal for Microscopy·Isabel Marques Rodrigues AmaralCarlos Ueira-Vieira
Jan 9, 2010·Micron : the International Research and Review Journal for Microscopy·Nahla M Abd El-Aziz, Hanan H Awad
Jan 22, 2011·Archives of Insect Biochemistry and Physiology·Youngjin ParkDavid Stanley
Jan 16, 2013·Development Genes and Evolution·Melina Grigorian, Volker Hartenstein
Dec 15, 2015·Ecology and Evolution·Catherine E ReaveySheena C Cotter
Dec 24, 2015·Developmental and Comparative Immunology·Julián F Hillyer
Jul 13, 2016·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·M A P LimaR N C Guedes
Jul 9, 2017·Cell and Tissue Research·Luis Andrés Arteaga BlancoGustavo Ferreira Martins

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