Cerdá-Reverter José Miguel, Muriach Borja, Zanuy Silvia, Muñoz-Cueto José Antonio
Departamento de Fisiología de Peces y Biotecnología, Instituto de Acuicultura de Torre de la Sal, CSIC, Torre de la Sal, Ribera de Cabanes, 12595 Castellón, Spain.
Acta Histochem. 2008;110(6):433-50. doi: 10.1016/j.acthis.2008.01.001. Epub 2008 Apr 11.
This study is the third part of a comprehensive series of publications on the cytoarchitectonic organization of the brain of the European sea bass, Dicentrarchus labrax. This study provides an atlas of the brain stem based on Nissl-stained transverse sections as well as a description of cell masses and a discussion on comparative aspects of brain stem nuclei, including methodological studies in other species. By external examination, the sea bass exhibits a prominent Optic tectum and Corpus cerebelli as expected in a predator species with a highly developed visual system. However, no hypertrophy of the facial and vagal lobes was observed as reported in other non-perciform teleosts. The general organization pattern of the mesencephalon and rhombencephalon of the sea bass brain resembles that reported for other perciform teleosts. However, the Valvula cerebelli has been subdivided into anterior, central and posterior parts. In addition, the ventricular surface of the granular layer of the Valvula cerebelli appears to be in contact with those of the Torus longitudinalis. This cell apposition could be interpreted as a direct connection, but more studies demonstrating the absence of ependyma between both structures are needed. Furthermore, we have tentatively described the electro/mechano receptive pre-eminential nucleus in the rhombencephalon of the sea bass. This study completes one of the few descriptions, as well as the most complete and detailed available, of the brain of any marine perciform species.
本研究是关于欧洲海鲈（Dicentrarchus labrax）脑的细胞构筑组织的一系列综合性出版物的第三部分。本研究提供了基于尼氏染色横切面的脑干图谱，以及细胞团的描述，并对脑干核的比较方面进行了讨论，包括对其他物种的方法学研究。通过外部检查，海鲈如预期的那样，在具有高度发达视觉系统的捕食性物种中表现出明显的视顶盖和小脑体。然而，未观察到如其他非鲈形目硬骨鱼所报道的面神经叶和迷走神经叶肥大。海鲈脑的中脑和后脑的总体组织模式与其他鲈形目硬骨鱼所报道的相似。然而，小脑瓣已被细分为前部、中部和后部。此外，小脑瓣颗粒层的室表面似乎与纵纹隆起的室表面接触。这种细胞并列可解释为直接连接，但需要更多研究来证明这两个结构之间不存在室管膜。此外，我们初步描述了海鲈后脑的电/机械感受优势核。本研究完成了对任何海洋鲈形目物种脑的少数描述之一，也是目前最完整、最详细的描述。
