The GnRH system in the European sea bass (Dicentrarchus labrax)

Melatonin Inhibits GnRH-1, GnRH-3 and GnRH Receptor Expression in the Brain of the European Sea Bass, Dicentrarchus labrax

Several evidences supported the existence of melatonin effects on reproductive system in fish. In order to investigate whether melatonin is involved in the modulation of GnRH systems in the European sea bass, we have injected melatonin (0.5 µg/g body mass) in male specimens. The brain mRNA transcript levels of the three GnRH forms and the five GnRH receptors present in this species were determi...

Multiple vitellogenin yolk precursors in European sea bass (Dicentrarchus labrax).

Yilmaz, O., Prat, F., Ibáñez, A.J., Amano, H., Koksoy, S., and Sullivan, C.V. INRA LPGP, Rennes Cedex, France; Instituto de Ciencias Marinas de Andalucía, CSIC, SPAIN; Instituto de Acuicultura de Torre de la Sal, CSIC, SPAIN (Present address: University of Valencia, SPAIN); Kitasato University, JAPAN; North Carolina State University, USA (Present address: Carolina AquaGyn, USA). E-mail: ozlem.y...

Skin mucus proteome map of European sea bass (Dicentrarchus labrax).

Skin mucus is the first barrier of fish defence. Proteins from skin mucus of European sea bass (Dicentrarchus labrax) were identified by 2DE followed by LC-MS/MS. From all the identified proteins in the proteome map, we focus on the proteins associated with several immune pathways in fish. Furthermore, the real-time PCR transcript levels in skin are shown. Proteins found include apolipoprotein ...

What is the heritable component of spinal deformities in the European sea bass (Dicentrarchus labrax)?

Cloning and retinal expression of melatonin receptors in the European sea bass, Dicentrarchus labrax.

Melatonin contributes to synchronizing behaviors and physiological functions to daily and seasonal rhythm in fish. However, no coherent vision emerges because the effects vary with the species, sex, age, moment of the year or sexual cycle. And, scarce information is available concerning the melatonin receptors, which is crucial to our understanding of the role melatonin plays. We report here th...