Surface Ultrastructure of the Gills of Odontesthes bonariensis (Valenciennes, 1835)(Teleostei: Atheriniformes) from a Temperate Shallow Lake

Hoz, María Florencia Tano de la; Longo, María Victoria; Escalante, Alicia H.; Díaz, Alcira Ofélia

doi:10.4067/s0717-95022014000400035

Cited by 8 publications

(4 citation statements)

References 22 publications

(35 reference statements)

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“…Gill rakers bear taste buds, the peripheral sensory organs of the gustatory system (Reutter et al, 2000). The chemosensory structures of taste buds enable food detection and selection (de la Hoz, Longo, Escalante, & Diaz, 2014). Our SEM-results suggest that the taste buds comprise two cell types, one with small microvilli (named dark cells) and the other with large microvilli (called light cells), consistent with the results of previous studies.…”

Section: Gill Archessupporting

confidence: 90%

Gills of the medaka (Oryzias latipes): A scanning electron microscopy study

Leguen

2017

Journal of Morphology

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The general morphology and surface ultrastructure of the gills of adult and larvae medaka (Oryzias latipes) were studied in freshwater and seawater using scanning electron microscopy. The gills of all examined fish were structurally similar to those of other teleosts and consisted of four pairs of arches supporting (i) filaments bearing lamellae and (ii) rakers containing taste buds. Three cell types, specifically pavement cells, mitochondria-rich cells (MRCs), and mucous cells, constituted the surface layer of the gill epithelium. Several distinctive characteristics of medaka gills were noted, including the presence of regularly distributed outgrowth on the lamellae, enlarged filament tips, the absence of microridges in most pavement cells in the filament and lamellae and the presence of MRCs in the arch at the filament base. A rapid mode of development was recorded in the gills of larval fish. At hatching, the larvae already had four arches with rudimentary filaments, rakers, and taste buds. The rudimentary lamellae appeared within 2 days after hatching. These results suggest the early involvement of larval gills in respiratory and osmoregulation activities. The responses of the macrostructures and microstructures of gills to seawater acclimation were similar in larvae and adult fish and included modification of the apical surface of MRCs, confirming the importance of these cells in osmoregulation. The potential roles of these peculiarities of the macrostructures and microstructures of medaka gills in the major functions of this organ, such as respiration and osmoregulation, are discussed. K E Y W O R D Sfish gill, gill development, medaka, salinity, scanning electron microscopy

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Section: Gill Archessupporting

confidence: 90%

Gills of the medaka (Oryzias latipes): A scanning electron microscopy study

Leguen

2017

Journal of Morphology

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“…1a). These characteristics are in accordance to those previously reported by other authors for this species (Tano de la Hoz et al 2014;Vigliano et al 2006). On the other hand, fish exposed to 1 and 10 mg PMG GBH L −1 exhibited gill impairment.…”

Section: Resultssupporting

confidence: 93%

Effects on Ultrastructure, Composition and Specific Surface Area of the Gills of Odontesthes bonariensis Under Subchronic Glyphosate-Based Herbicide Exposure

Menéndez-Helman

Miranda

Salibián

et al. 2020

Bull Environ Contam Toxicol

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Gills represent one of the major sites of gas exchange of fish, consequently they are in continuous close contact with the aquatic environment and its pollutants. In the present study the effects on gills of pejerrey fish, Odontesthes bonariensis, under glyphosate-based herbicide subchronic exposure were analyzed. Adult animals were exposed to sublethal concentrations of a glyphosate-based commercial formulation (1 and 10 PMG mg L −1 , PMG: glyphosate active ingredient) for 15 days, while control group was maintained in rearing water. Ultrastructural changes in gills were observed by scanning electron microscopy (SEM). The composition of the surface epithelium and specific surface area were determined by energy dispersive spectroscopy (EDS) and N 2 (g) adsorption-desorption isotherms, respectively. The herbicide exposure induced severe alterations in gill ultrastructure, as shown in the SEM micrographs. Accordingly, an increase in surface area of the gills of exposed animals was determined. These results support that gills parameters of freshwater fish are sensitive morphological biomarkers for glyphosate exposure. KeywordsGlyphosate-based herbicide • Gill ultrastructure • SEM • Specific surface area • Pejerrey fish Odontesthes bonariensis * María dos Santos Afonso

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“…The presence of MCs in the gill filaments is a common feature in teleosts, but their distribution and abundance vary among species (Díaz et al, 2001(Díaz et al, , 2005a(Díaz et al, , 2005b(Díaz et al, , 2010Tano de la Hoz et al, 2014). In accordance with previous observations by Wilson and Laurent (2002) for other teleosts, C. paleatus presents scarce MCs in the gill filaments, and this cell type is not found in the branchial lamellae, a feature that could be associated with their benthic habitat.…”

Section: Gill Epitheliumsupporting

confidence: 85%

Gill morphology and morphometry of the facultative air‐breathing armoured catfish, Corydoras paleatus, in relation on aquatic respiration

Plaul

Díaz

Barbeito

2021

Journal of Fish Biology

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The Neotropical armoured catfish Corydoras paleatus is a facultative air‐breathing teleost commonly exported as ornamental fish. In this species, air breathing enables it to survive and inhabit freshwater environments with low oxygen levels. Therefore, it is important to analyse the gills from a morphological aspect and its dimensions in relation to body mass with reference to aquatic respiration. For that, the gills were analysed using a stereoscopic microscope for morphometric studies, and structural and ultrastructural studies were carried out to compare the four branchial arches. Furthermore, two immunohistochemical techniques were used to locate and identify the presence of a Na+/K+ pump. The characterization of the potential for cell proliferation of this organ was assessed using an anti‐PCNA antibody. The results show that gills of C. paleatus present some characteristics related to its diet and lifestyle, such as the limited development of gill rakers and the abundance of taste buds. In addition, other special features associated with the environment and bimodal breathing were observed: scarce and absent mucous cells (MCs) in the gill filaments and branchial lamellae, respectively, and the localization of mitochondria‐rich cells (MRCs) covering the basal third of the branchial lamellae, which reduces the gill respiratory area. A peculiar finding in the gill epithelium of this armoured catfish was the presence of mononuclear cells with sarcomeres similar to myoid cells, whose functional importance should be determined in future studies. Finally, in C. paleatus, the interlamellar space of gill filaments is an important site for cell turnover and ionoregulation; the latter function is also performed by the branchial lamellae.

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Surface Ultrastructure of the Gills of Odontesthes bonariensis (Valenciennes, 1835)(Teleostei: Atheriniformes) from a Temperate Shallow Lake

Cited by 8 publications

References 22 publications

Gills of the medaka (Oryzias latipes): A scanning electron microscopy study

Gills of the medaka (Oryzias latipes): A scanning electron microscopy study

Effects on Ultrastructure, Composition and Specific Surface Area of the Gills of Odontesthes bonariensis Under Subchronic Glyphosate-Based Herbicide Exposure

Gill morphology and morphometry of the facultative air‐breathing armoured catfish, Corydoras paleatus, in relation on aquatic respiration

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