Glial Cells of the Central Nervous System in the Crab Ucides cordatus

Glial cells and their processes were characterized in the fasciculated zone and in the protocerebral tract of the crab Ucides cordatus by light and electron microscopy. Thiéry and PAS procedures indicate the presence of carbohydrates, particularly glycogen in cells. Immunohistochemistry was used to...

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Bibliographic Details
Published in:Invertebrate biology 1999-01, Vol.118 (2), p.175-183
Main Authors: Allodi, Silvana, da Silva, Simone Florim, Taffarel, Marília
Format: Article
Language:English
Subjects:
Axons
Crustaceans
Cytoplasm
Extracellular matrix
Glycogen
Invertebrates
Marine
Mitochondria
Neuroglia
Neurons
Ucides cordatus
Vertebrates
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Summary:Glial cells and their processes were characterized in the fasciculated zone and in the protocerebral tract of the crab Ucides cordatus by light and electron microscopy. Thiéry and PAS procedures indicate the presence of carbohydrates, particularly glycogen in cells. Immunohistochemistry was used to observe tubulin distribution in the glial cells. Our results demonstrate at least two types of glial cells in the fasciculated zone and in the protocerebral tract, separable by their location and electron density. Judging by their position, electron-lucent cells may correspond to periaxonal cells and electron-dense ones may correspond to perineurial cells. The electron-dense processes have previously been interpreted as extracellular matrix, but since they feature an enveloping membrane and contain glycogen and mitochondria (intact and with varying degrees of disruption) we consider them to be part of one type of glial cells.
ISSN:1077-8306
1744-7410
DOI:10.2307/3227058