Division of Fish and Fisheries, PG Department of Zoology, RTM Nagpur University Campus, Nagpur, India.
Fish Physiol Biochem. 2011 Dec;37(4):993-1004. doi: 10.1007/s10695-011-9503-2. Epub 2011 May 7.
Cytoarchitectonic pattern of the telencephalon of a dwarf snakehead, Channa gachua, is studied by serial transverse sections of the brain (Kluver and Barrera staining). On the anteriormost extremity of the telencephalon, olfactory bulbs terminate that are sessile. The olfactory bulbs comprise four concentric layers, which from outside toward the center are olfactory nerve layer, a glomerular layer, mitral cell layer, and internal cell layer. Large terminal nerve ganglion cells are prominently visible in the dorsomedial position where the bulbs terminate on the telencephalon. In all, 24 nuclei are identified in the telencephalon on ventral and dorsal areas and are named according to their position. Ventral telencephalon exhibits 11 nuclei. On the dorsal telencephalon, there are 13 nuclei. These again are named according to their position on dorsal, ventral, median, lateral, or posterior part. This study reported for the first time in this fish will be useful in tracing the neuronal system of Channa gachua and subsequent studies of the functional aspects of these nuclei in the regulation of reproductive cycle of this species.
通过对 dwarf snakehead（黑鱼）脑的连续横切片（Kluver 和 Barrera 染色），研究了端脑的细胞构筑模式。在前脑的最前端，终止的是无柄的嗅球。嗅球由四个同心层组成，从外向内依次为嗅神经层、肾小球层、僧帽细胞层和内细胞层。在嗅球终止于端脑的背内侧位置，可以明显看到大型终末神经节细胞。在腹侧和背侧区域的端脑共鉴定出 24 个核，并根据其位置进行命名。腹侧端脑有 11 个核。在背侧端脑上有 13 个核。这些核也根据它们在背侧、腹侧、正中、外侧或后侧部分的位置进行命名。本研究首次在这种鱼类中报道，这将有助于追踪黑鱼的神经元系统，并进一步研究这些核在调节该物种生殖周期方面的功能方面。
