Document Detail


Morphology of the epidermis of the neotropical catfish Pimelodella lateristriga (Lichtenstein, 1823) with emphasis in club cells.
MedLine Citation:
PMID:  23226253     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The epidermis of Ostariophysi fish is composed of 4 main cell types: epidermal cells (or filament containing cells), mucous cells, granular cells and club cells. The morphological analysis of the epidermis of the catfish Pimelodella lateristriga revealed the presence of only two types of cells: epidermal and club cells. The latter were evident in the middle layer of the epidermis, being the largest cells within the epithelium. Few organelles were located in the perinuclear region, while the rest of the cytoplasm was filled with a non-vesicular fibrillar substance. Club cells contained two irregular nuclei with evident nucleoli and high compacted peripheral chromatin. Histochemical analysis detected prevalence of protein within the cytoplasm other than carbohydrates, which were absent. These characteristics are similar to those described to most Ostariophysi studied so far. On the other hand, the epidermal cells differ from what is found in the literature. The present study described three distinct types, as follows: superficial, abundant and dense cells. Differences among them were restricted to their cytoplasm and nucleus morphology. Mucous cells were found in all Ostariophysi studied so far, although they were absent in P. lateristriga, along with granular cells, also typical of other catfish epidermis. The preset study corroborates the observations on club cells' morphology in Siluriformes specimens, and shows important differences in epidermis composition and cell structure of P. lateristriga regarding the literature data.
Authors:
Eduardo Medeiros Damasceno; Juliana Castro Monteiro; Luiz Fernando Duboc; Heidi Dolder; Karina Mancini
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Publication Detail:
Type:  Journal Article     Date:  2012-11-30
Journal Detail:
Title:  PloS one     Volume:  7     ISSN:  1932-6203     ISO Abbreviation:  PLoS ONE     Publication Date:  2012  
Date Detail:
Created Date:  2012-12-11     Completed Date:  2013-05-20     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  101285081     Medline TA:  PLoS One     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e50255     Citation Subset:  IM    
Affiliation:
Departamento de Ciências Agrárias e Biológicas, Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo, São Mateus, Espírito Santo, Brasil.
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MeSH Terms
Descriptor/Qualifier:
Animals
Catfishes / anatomy & histology*
Cell Nucleus / ultrastructure*
Chromatin / ultrastructure
Cytoplasm / chemistry,  ultrastructure*
Cytoplasmic Granules / ultrastructure*
Cytoskeleton / ultrastructure
Epidermis / ultrastructure*
Epithelial Cells / ultrastructure*
Fish Proteins / chemistry
Histocytochemistry
Microscopy, Electron, Transmission
Chemical
Reg. No./Substance:
0/Chromatin; 0/Fish Proteins
Comments/Corrections

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