Morphology of the epidermis of the neotropical catfish Pimelodella lateristriga (Lichtenstein, 1823) with emphasis in club cells
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: epid...
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| description | 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. |
| doi_str_mv | 10.1371/journal.pone.0050255 |
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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.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0050255</identifier><identifier>PMID: 23226253</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Acids ; Animals ; Biology ; Carbohydrates ; Catfish ; Catfishes - anatomy & histology ; Cell Nucleus - ultrastructure ; Chromatin ; Chromatin - ultrastructure ; Cyprinidae ; Cytology ; Cytoplasm ; Cytoplasm - chemistry ; Cytoplasm - ultrastructure ; Cytoplasmic Granules - ultrastructure ; Cytoskeleton - ultrastructure ; Epidermis ; Epidermis - ultrastructure ; Epithelial Cells - ultrastructure ; Epithelium ; Fish ; Fish Proteins - chemistry ; Fishes ; Heptapteridae ; Histochemical analysis ; Histocytochemistry ; Histology ; Microscopy ; Microscopy, Electron, Transmission ; Morphology ; Nuclei ; Nuclei (cytology) ; Nucleoli ; Organelles ; Ostariophysi ; Pimelodella ; Pimelodella lateristriga ; Siluriformes ; Skin ; Studies</subject><ispartof>PloS one, 2012-11, Vol.7 (11), p.e50255-e50255</ispartof><rights>COPYRIGHT 2012 Public Library of Science</rights><rights>2012 Damasceno et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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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.</description><subject>Acids</subject><subject>Animals</subject><subject>Biology</subject><subject>Carbohydrates</subject><subject>Catfish</subject><subject>Catfishes - anatomy & histology</subject><subject>Cell Nucleus - ultrastructure</subject><subject>Chromatin</subject><subject>Chromatin - ultrastructure</subject><subject>Cyprinidae</subject><subject>Cytology</subject><subject>Cytoplasm</subject><subject>Cytoplasm - chemistry</subject><subject>Cytoplasm - ultrastructure</subject><subject>Cytoplasmic Granules - ultrastructure</subject><subject>Cytoskeleton - ultrastructure</subject><subject>Epidermis</subject><subject>Epidermis - ultrastructure</subject><subject>Epithelial Cells - ultrastructure</subject><subject>Epithelium</subject><subject>Fish</subject><subject>Fish Proteins - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Damasceno, Eduardo Medeiros</au><au>Monteiro, Juliana Castro</au><au>Duboc, Luiz Fernando</au><au>Dolder, Heidi</au><au>Mancini, Karina</au><au>Koval, Michael</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphology of the epidermis of the neotropical catfish Pimelodella lateristriga (Lichtenstein, 1823) with emphasis in club cells</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2012-11-30</date><risdate>2012</risdate><volume>7</volume><issue>11</issue><spage>e50255</spage><epage>e50255</epage><pages>e50255-e50255</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>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.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>23226253</pmid><doi>10.1371/journal.pone.0050255</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Acids Animals Biology Carbohydrates Catfish Catfishes - anatomy & histology Cell Nucleus - ultrastructure Chromatin Chromatin - ultrastructure Cyprinidae Cytology Cytoplasm Cytoplasm - chemistry Cytoplasm - ultrastructure Cytoplasmic Granules - ultrastructure Cytoskeleton - ultrastructure Epidermis Epidermis - ultrastructure Epithelial Cells - ultrastructure Epithelium Fish Fish Proteins - chemistry Fishes Heptapteridae Histochemical analysis Histocytochemistry Histology Microscopy Microscopy, Electron, Transmission Morphology Nuclei Nuclei (cytology) Nucleoli Organelles Ostariophysi Pimelodella Pimelodella lateristriga Siluriformes Skin Studies |
| title | Morphology of the epidermis of the neotropical catfish Pimelodella lateristriga (Lichtenstein, 1823) with emphasis in club cells |
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