Preliminary findings on the nucleus of large neurons in Lophius piscatorius L. (Osteichthyes, Lophiiformes).
Some Teleosts belonging to the orders Batrachoidiformes, Lophiiformes, Perciformes and Tetraodontiformes show a cluster of large neurons dorsally located at the boundary between the spinal cord and medulla oblongata. These elements have traditionally been grouped with the supramedullary neurons aligned in the dorso-medial region of the spinal cord of other teleosts (see Marini and Benedetti, in press). However, recent morphological and immunohistochemical studies have suggested that the neurons grouped in a cluster on the spinal cord of Lophius piscatorius may not be of the same nature as the supramedullary neurons aligned within the dorsal gray matter of the spinal cord (Benedetti and Mola, 1988; Mola, 1990). Over the course of these previous investigations, it seemed that the nucleus of the neurons in the cluster showed more abundant chromatin than other neurons in the dorsal spinal cord. This prompted a series of investigations on the nucleus of these neurons.
Benedetti
I
I
Dipartimento di Biologia Animale, Modena, Italy.
Mola
L
L
D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure*; D005399:Fishes / Q000033:anatomy & histology*; D007091:Image Processing, Computer-Assisted; D008526:Medulla Oblongata / Q000033:anatomy & histology; D009474:Neurons / Q000648:ultrastructure*; D013116:Spinal Cord / Q000033:anatomy & histology; D013194:Staining and Labeling