Mucous Cells in Micropogonias furnieri gills: Histochemistry and Ultrastructure

Neuhaus, Valentin; Dorschner,; Mondry, Mondry; Stolzenburg,

doi:10.1111/j.1439-0264.2001.t01-1-0

Cited by 3 publications

(1 citation statement)

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“…There is some variation in the portions of the prostate gland among animals species; the present study with (6,13,(31)(32)(33) noted the presence of only one portion called disseminate part while (23) in the Black Bengal buck mentioned that the single prostate gland has two portions; compact (external) and disseminate (internal) portion. But (34) in rat noted that the paired prostate gland has a dorsal and ventral part, also (37) in the G. pig noted that the prostate gland has two portions; the large cranial lobe and the smaller caudal lobe. Moreover (38) in the capybara noted that the prostate gland consists of three parts; intermediate, dorsal and lateral lobes.…”

Section: Discussionmentioning

confidence: 99%

Morphological examination of the accessory sex glands of the Barki bucks (Capra hircus)

et al. 2022

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The present investigation was prepared to describe the accessory sex glands of the Barki bucks grossly and by light microscopy. There are four sex glands: ampullary, vesicular, prostate, and bulbourethral. The ampullary gland is an enlargement of the terminal part of the ductus deferens, its glandular part has branched tubuloalveolar glands, and its secretory alveoli lined with a pseudo-stratified epithelium composed of cuboidal to columnar cells.The vesicular gland takes the appearance of a cluster of grapes and the left vesicular gland is enlarged and higher than the right one. The vesicular gland is a lobulated tubuloalveolar gland with wide intralobular space and the gland contain a secretory unit which lined by pseudo-stratified columnar epithelium, and the interlobular ductules lined by the stratified epithelium, while the interlobular duct lined by simple cuboidal epithelium moreover, the 2 lining epithelium of secretory part consists of tall columnar cells. The prostate gland consists only of the disseminated part and is enclosed by a connective tissue capsule that was thin dorsally, thick laterally, and reduced in thickness ventrally. The prostatic acini are lined by simple cuboidal epithelium. The bulbourethral gland was similar in size to the walnut and surrounded by a capsule and there are interlobular connective tissue septa that divided the gland into lobes and lobules of different sizes. The bulbourethral gland contains secretory units lined by the tall simple columnar epithelium of mucous type with basely located nuclei and eosinophilic cytoplasm contain granular secretion. The gross and microscopic examination of the four accessory sex glands gave valuable information in the future pathology diagnosis of the accessory sex glands of the Barki bucks.

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Section: Discussionmentioning

confidence: 99%

Morphological examination of the accessory sex glands of the Barki bucks (Capra hircus)

et al. 2022

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Ultrastructure and Histochemical Study of Glycoconjugates in the Gills of the White Croaker (Micropogonias furnieri)

Díaz¹,

Garcı́a²,

Devincenti³

et al. 2005

Anat Histol Embryol

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The ultrastructure of the primary and secondary lamellae of gills was investigated in a marine teleost, the white croaker. The following cells were identified and briefly described: pavement cells, mucous cells, mitochondria-rich cells and rodlet cells. These cell types are present throughout the length of the lamellae. They are studied by means of a series of carbohydrate histochemical methods, including lectin procedures. Neutral sugars and substituted sialic acid were detected by means of periodic acid-borohydride reduction-saponification-periodic acid Schiff reaction (PA/Bh/KOH/PAS), saponification-selective periodic acid Schiff reaction (KOH/PA*S) and saponification-selective periodic acid-borohydride reduction-periodic acid Schiff reaction (KOH/PA*/Bh/PAS) histochemical techniques. A battery of seven lectins was used to study binding on tissue sections at the light microscopic level to characterize glycoconjugates in gills. The reaction to Canavalia ensiformis agglutinin (Con-A), Triticum vulgaris agglutinin (WGA), and Ricinus cummunis agglutinin-1 (RCA-1) was weak in pavement cells; unlike Con-A, the reaction to WGA and RCA-1 was more intense in mucous cells. Arachis hypogaea agglutinin (PNA) lectin showed a strong reaction in mucous cells. Ulex europaens agglutinin-1 (UEA-1) lectin was negative in all cell types. The lectin pattern was similar for both primary and secondary lamellae, except for PNA reaction, which was weak in the pavement cells of the secondary lamella and negative in the pavement cells of the primary lamella.

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Histology and Histochemistry of the Pharyngeal Cavity and Oesophagus of the Silverside Odontesthes bonariensis (Cuvier and Valenciennes)

Díaz¹,

Escalante²,

Garcı́a³

et al. 2005

Anat Histol Embryol

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The histology of the pharyngeal cavity and oesophagus of the freshwater 'silverside'Odontesthes bonariensis (Cuvier and Valenciennes) and the characteristics of their mucous cells were investigated. The histological characterization of its digestive wall revealed that the mucosa is thrown with longitudinal folds. The epithelium covering the folds was stratified with abundant mucous cells and gustative corpuscles, which are lacking in the oesophagus. The muscularis mucosa was absent. The submucosa presented the compactum stratum. The muscularis was organized in longitudinal and circular layers of muscular striated fibres. The serosa with a flat epithelium was located only in the oesophagus. Using histochemical procedures including methods for localization and characterization of glycoproteins (GPs), no differences were detected between the mucous cells contents of the pharyngeal cavity and those of the oesophagus. The mucous cells showed a weak periodic acid-Schiff (PAS) positive reaction in their content. The reactions for the differential analysis of sialic acids from GPs are feeble for periodic acid-Schiff at low temperature and low pH (PA*S) and KOH/PA*S and strong for periodic acid/borohydride/KOH/PAS (PA/Bh/KOH/PAS) and KOH/PA*/Bh/PAS revealing the scarce presence of C7 or C9 substituted and non-substituted sialic acids and the abundance of C7, C8 substituted sialic acids, O-acyl sugars and neutral sugars respectively. The results suggest that the pharyngeal cavity with the gustative corpuscles would induce the gastric secretion whereas the oesophagus is mainly involved in the transport of the food bolus to the stomach with the aid of abundant secretion of mucus. GPs secreted on the surface of the mucous cells, likely related to environmental conditions, would be involved in the lubrication, protection against abrasion and inhibition of microorganism proliferation.

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Mucous Cells in Micropogonias furnieri gills: Histochemistry and Ultrastructure

Cited by 3 publications

References 0 publications

Morphological examination of the accessory sex glands of the Barki bucks (Capra hircus)

Morphological examination of the accessory sex glands of the Barki bucks (Capra hircus)

Ultrastructure and Histochemical Study of Glycoconjugates in the Gills of the White Croaker (Micropogonias furnieri)

Histology and Histochemistry of the Pharyngeal Cavity and Oesophagus of the Silverside Odontesthes bonariensis (Cuvier and Valenciennes)

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