Fat body of Prorhinotermes simplex (Isoptera: Rhinotermitidae): ultrastructure, inter-caste differences and lipid composition

Micron : the International Research and Review Journal for Microscopy
Jan SobotníkJana Nebesárová

Abstract

Ultrastructure of the fat body was studied in following castes and developmental stages of Prorhinotermes simplex: larvae of the first and the second instar, pseudergates, presoldiers, soldiers, nymphs, imagoes and mature ergatoid neotenic reproductives of both sexes. Fat body always consists of two principal cell types: adipocytes and urocytes. Adipocytes are characterized by a presence of large amounts of storage substances, namely lipid droplets, glycogen rosettes and proteins in the form of either biocrystals or vacuoles. Proportion of these components strongly varies during ontogeny. Adipocytes are equipped by a large central vacuole in which lipid droplets may resolve. Cytoplasm of urocytes contain glycogen rosettes and spherical or irregular concretions, other organelles are rare. Only adipocytes change their inner structure in the course of ontogeny: amount of glycogen decreases during the postembryonic development, it is the major kind of inclusion in the larvae but lacks in nymphs and imagoes; opposite trend is performed by lipids. The changes in protein content are less obvious but are explained and discussed. The total amount of triacylglycerols (TAGs) was found to be roughly 100microg in a pseudergate, 250microg in...Continue Reading

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Citations

Apr 9, 2013·Journal of Insect Physiology·Ana Maria Costa-LeonardoIves Haifig
Sep 11, 2013·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Waléria C A FurtadoJosé Eduardo Serrão
Jan 18, 2016·Micron : the International Research and Review Journal for Microscopy·Silvana B Poiani, Ana M Costa-Leonardo
Aug 26, 2015·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Aldana LainoC Fernando Garcia
Nov 9, 2006·Rapid Communications in Mass Spectrometry : RCM·Josef CvackaIrena Valterová
May 1, 2016·Arthropod Structure & Development·Johan BillenFuminori Ito
Jan 28, 2017·Insect Biochemistry and Molecular Biology·Anna JirošováAleš Svatoš
May 13, 2018·Journal of Chemical Ecology·Klára DolejšováRobert Hanus
Nov 7, 2019·Ecology and Evolution·Tomonari Nozaki, Kenji Matsuura

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