The pineal complex of Senegalese sole (Solea senegalensis): Anatomical, histological and immunohistochemical study

Confente, Francesca; M'Rabet, A. El; Ouarour, Ali; Voisin, Pierre; Grip, W.J. de; Rendón, M.C.; Muñoz‐Cueto, José Antonio

doi:10.1016/j.aquaculture.2008.08.040

Cited by 16 publications

(39 citation statements)

References 59 publications

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“…The lower thickness of the upper parenchyma could also facilitate a better transmission of the light through the organ to reach photoreceptors from the ventral wall. In contrast, the pineal organ of sole, which inhabits in similar geographical areas but in benthic environments, exhibits a long pineal stalk and a highly convoluted pineal vesicle with a thick and hypertrophied parenchyma (Confente et al, 2008). It is interesting that the organisation of the pineal organ of a complexly organised teleost as the sea bass resembles much more the pineal organ of an agnathan as the sea lamprey, Petromyzon marinus (Cole and Youson, 1982;Pombal et al, 1999;Melé ndezFerro et al, 2002) than that of sole, reinforcing that environmental photic niches rather than phylogenetic relationships are conditioning pineal characteristics.…”

Section: Discussionmentioning

confidence: 86%

“…The anatomical characteristics described in the present study seem to facilitate the maximal incidence of light into the underlying small-sized pineal vesicle and could reflect an adaptation to better catching the light stimuli and increase light sensitivity in the sea bass. The pineal organ of sea bass exhibits a narrow and short pineal stalk and a small-sized pineal vesicle when compared with other fish species such as the pike (Falcó n, 1979), the major Indian carp (Dey et al, 2003) and the sole (Confente et al, 2008). This vesicle displays a thickened ventral wall that concentrates most photoreceptors and a thin dorsal wall in which the number of pinealocytes is markedly reduced.…”

Section: Discussionmentioning

confidence: 97%

“…In our immunohistochemical study, we have used antibodies against cone (CERN-874) and rod (CERN-922) opsins. These antisera have also been useful to localise photoreceptor cells in sole (Confente et al, 2008). In sea bass, rod opsinlike and cone opsin-like cells were detected both in the pineal vesicle and stalk but the rod-opsin antibody stains the perikaryon in addition of the classical photosensitive region (outer segment), The expression was normalised using ribosomal L17 as housekeeping gene, which did not show significant day-night differences in Ct (C).…”

Section: Discussionmentioning

confidence: 99%

“…Steinbusch). The antibodies used in this study have previously been well characterised and used successfully in fish to identify opsins (García-Ferná ndez et al, 1997;Confente et al, 2008) and serotonin (Steinbusch et al, 1983;Falcó n et al, 1984). For immunofluorescence methods, sections were washed in CBT (3Â 15 min) and incubated for 2 h at room temperature with an antibody against rabbit IgG coupled to fluorescein or Texas Red (1:100 dilution, Jackson ImmunoResearch, West Grove, USA).…”

Section: Immunohistochemical Studymentioning

confidence: 99%

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The pineal complex of the European sea bass (Dicentrarchus labrax): I. Histological, immunohistochemical and qPCR study

Herrera-Pérez

Servili

Rendón

et al. 2011

Journal of Chemical Neuroanatomy

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Immunohistochemical Studymentioning

confidence: 99%

See 2 more Smart Citations

The pineal complex of the European sea bass (Dicentrarchus labrax): I. Histological, immunohistochemical and qPCR study

Herrera-Pérez

Servili

Rendón

et al. 2011

Journal of Chemical Neuroanatomy

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“…In addition, this species is very sensitive to artificial light at night, as a 1 hour light pulse of approximately 1 lux reduced melatonin titres to daytime values . Furthermore, the Senegal sole pineal is hypertrophied and shows a marked asymmetry in its position, reflecting an adaptation to the demersal life of this flatfish (Confente et al, 2008). This high sensitivity of Senegal sole to light can be useful for the detection of moonlight, possibly enabling synchronization to the lunar light cycle.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Influence of the lunar cycle on plasma melatonin, vitellogenin and sex steroids rhythms in Senegal sole, Solea senegalensis

et al. 2010

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Influence of the lunar cycle on plasma melatonin, vitellogenin and sex steroids rhythms in Senegal sole, Solea senegalensis, Aquaculture (2010Aquaculture ( ), doi: 10.1016Aquaculture ( /j.aquaculture.2010 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT AbstractThe effect of the moon light cycle on plasma melatonin rhythms was examined in Senegal sole (Solea senegalensis) exposed to natural outdoor or artificial indoor lighting conditions. Furthermore, in a second experiment, the effect of the lunar cycle on vitellogenin and sex steroids (Testosterone, T; Estradiol, E2; 11-ketotestosterone, 11kt) was studied using mature individuals during reproductive season. In the first experiment, during full moon, plasma melatonin peaked at night in covered tanks (deprived of night illumination) from both outdoor (133.2 ± 12.8 pg ml -1 ) and indoor (190.6 ± 41.5 pg ml -1 ) groups. However, for fish in the open tanks, exposed to approximately 0.3 lux of illumination, nocturnal plasma melatonin was significantly reduced (p<0.05), approaching to mid-light (ML) values, (79.6 ± 7.1 and 81.8 ± 14.0 pg ml -1 , for outdoor and indoor groups, respectively). During new moon a similar pattern was observed in outdoor group: fish in the covered tank showed higher melatonin values than those in the open tank, which were exposed to the near undetectable night illumination. In the second experiment, plasma sex steroid concentrations were significantly higher during the full moon compared to the new moon. In the case of females, E2 concentration reduced from 2.4 ± 0.6 to 0.4 ± 0.1 ng ml -1 between full and new moon samplings, while T decreased from 0.3 ± 0.0 to 0.2 ± 0.0 ng ml -1 .Vitellogenin, however, did not show such differences between moon phases. In males, 11kt exhibited a plasma concentration of 14.3 ± 2.1 ng ml -1 during full moon and 4.7 ± 0.7 ng ml -1 during new moon while T values were 2.6 ± 0.4 and 1.0 ± 0.1 ng ml -1 for full and new moon, respectively. In conclusion, these findings pointed out the high sensitivity to moon light of the Senegal sole, which could be using the melatonin signalling to synchronize their reproduction rhythms to the lunar cycle.

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The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species

Rincón

Morandini

Birba

et al. 2016

Journal of Morphology

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Cardinal neon Paracheirodon axelrodi and bloodfin tetra Aphyocharax anisitsi are two species of characids with high trade value as ornamental fish in South America. Although both species inhabit middle water layers, cardinal neon exhibits a tropical distribution and bloodfin tetra a subtropical one. In this work, we carried out an anatomical, histological and immunohistochemical study of the pineal complex of P. axelrodi and A. anisitsi. In both species, the pineal complex consisted of three components, the pineal and parapineal organs and the dorsal sac (DS). The pineal organ was composed of a short, thin pineal stalk (PS), vertically disposed with respect to the upper surface of the telencephalon, and a pineal vesicle (PV), located at the distal end of the PS and attached to the skull by connective tissue. The pineal window (PW), a site in the skull where the luminal information accesses the pineal organ, appeared just above the latter structures. In the epidermis of P. axelrodi's PW, club cells were identified, but were not observed in the epidermis of A. anisitsi's one. With respect to the DS, it appeared to be folded on itself, and was bigger and more folded in A. anisitsi than in P. axelrodi. Immunohistochemical assays revealed the presence of cone opsin-like and rod opsin-like photoreceptor cells in the PS and PV. These results provide a first insight into the morphological assembly of the pineal complex of both species, and contribute to a better understanding of the integration and transduction of light stimuli in characids. J. Morphol. 277:1355-1367, 2016. © 2016 Wiley Periodicals, Inc.

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The pineal complex of Senegalese sole (Solea senegalensis): Anatomical, histological and immunohistochemical study

Cited by 16 publications

References 59 publications

The pineal complex of the European sea bass (Dicentrarchus labrax): I. Histological, immunohistochemical and qPCR study

The pineal complex of the European sea bass (Dicentrarchus labrax): I. Histological, immunohistochemical and qPCR study

Influence of the lunar cycle on plasma melatonin, vitellogenin and sex steroids rhythms in Senegal sole, Solea senegalensis

The pineal complex: a morphological and immunohistochemical comparison between a tropical (Paracheirodon axelrodi) and a subtropical (Aphyocharax anisitsi) characid species

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