| synapsin i is associated with cholinergic nerve terminals in the electric organs of torpedo, electrophorus, and malapterurus and copurifies with torpedo synaptic vesicles. | using an affinity-purified monospecific polyclonal antibody against bovine brain synapsin i, the distribution of antigenically related proteins was investigated in the electric organs of the three strongly electric fish torpedo marmorata, electrophorus electricus, malapterurus electricus and in the rat diaphragm. on application of indirect fluorescein isothiocyanate-immunofluorescence and using alpha-bungarotoxin for identification of synaptic sites, intense and very selective staining of nerve ... | 1987 | 3110371 |
| acetylcholine, atp, and proteoglycan are common to synaptic vesicles isolated from the electric organs of electric eel and electric catfish as well as from rat diaphragm. | cholinergic synaptic vesicles were isolated from the electric organs of the electric eel (electrophorus electricus) and the electric catfish (malapterurus electricus) as well as from the diaphragm of the rat by density gradient centrifugation followed by column chromatography on sephacryl-1000. this was verified by both biochemical and electron microscopic criteria. differences in size between synaptic vesicles from the various tissue sources were reflected by their elution pattern from the seph ... | 1986 | 3760871 |
| terrestrial fungi inhabiting certain species of nile fishes in egypt. | twenty specimens of six species of nile fishes were examined for the presence of fungi. of which 2 were from alestes nurse; 3 from bagrus docmac; 4 from barbus bynni; 6 from chrysichthys auratus; 4 from lates niloticus and 1 from malapterurus electricus. forty-three fungal species in addition to 1 variety appertaining to fifteen genera were recovered from skin (15 genera and 34 species + 1 variety); gills, kidney (12 genera and 30 species + 1 variety, each); liver (11 genera and 30 species + 1 v ... | 1993 | 8368027 |
| redescription of electrotaenia malopteruri (fritsch, 1886) (cestoda: proteocephalidae), a parasite of malapterurus electricus (siluriformes: malapteruridae) from egypt. | the proteocephalidean cestode electrotaenia malopteruri (fritsch, 1886) (proteocephalidae: gangesiinae), the type- and only species of electrotaenia nybelin, 1942 and specific to the electric catfish malapterurus electricus gmelin (siluriformes: malapteruridae), is redescribed on the basis of freshly collected material from the river nile in egypt. the validity of electrotaenia is confirmed and some unique characters of this genus, observed in extensive material from different host specimens fro ... | 2004 | 14755172 |
| ultrastructural characters of the spermatozoon of the cestode corallobothrium solidum fritsch, 1886 (cestoda: proteocephalidea), a parasite of the electric catfish malapterurus electricus. | the fine structure of the mature spermatozoon of the corallobothriine tapeworm corallobothrium solidum fritsch, 1886 (cestoda: proteocephalidea) from the electric catfish malapterurus electricus from the nile river in egypt was studied by transmission electron microscopy for the first time. the filiform spermatozoon of c. solidum contains two axonemes of unequal length and a typical 9 + "1" trepaxonematan pattern. a single helicoidal crested body (30-200 nm thick) is localized at the anterior ex ... | 2004 | 15517385 |
| fin-fishes in yorùbá natural healing practices from southwest nigeria. | natural healing treatment recipes from southwest nigeria were examined for fin-fishes of ethnomedical importance. fifteen families of 19 genera were identified with members found either in marine, fresh or brackish waters. two thousand two hundred and eighty-five recipes were examined, 9.11% contained fin-fish or its derivative as component. fertility/conception-related medical conditions have highest proportion of recipes (26.26%) with fish/derivatives as inputs. one hundred and forty-one recip ... | 2007 | 17601691 |
| a new genus and species of proteocephalidean (cestoda) from clarias catfishes (siluriformes: clariidae) in africa. | a new proteocephalidean cestode is described from 2 catfishes, clarias gariepinus (type host) and c. cf. anguillaris (siluriformes: clariidae), from ethiopia (type locality), sudan, tanzania, and zimbabwe, and a new genus, barsonella, is proposed to accommodate it. the genus belongs to the proteocephalinae because its genital organs (testes, ovary, vitellarium, and uterus) are situated in the medulla. barsonella lafoni, the type and only species of the new genus, is characterized mainly by the p ... | 2009 | 18576867 |
| redescription of corallobothrium solidum (cestoda: proteocephalidea) and erection of a new genus, essexiella, for tapeworms from channel catfish (ictaluridae). | abstract the proteocephalidean tapeworm, corallobothrium solidum, type species of the genus, is redescribed on the basis of the examination of its type specimens and extensive material recently collected from malapterurus electricus (type host). some morphological characteristics of taxonomic importance are reported for the first time, such as the presence of semispherical (u-shaped) sphincters on the external (outer) margin of the suckers, a vaginal sphincter, a well-developed seminal receptacl ... | 2011 | 21721903 |
| axonal transport studied in a single vertebrate neuron: the giant electromotor neuron of the electric catfish, malapterurus electricus. | axonal transport was studied using a single vertebrate neuron, the giant electromotor neuron of the electric catfish, malapterurus electricus. the electric organs of this strongly electric fish are innervated by two neurons whose axons form one electric nerve each. after injection of [35s]methionine into the spinal cord at the level of the two perikarya radioactively labelled material is exported by fast flow as a small wave with a velocity of 5.8 mm/h and a somal release time of 91 min (29 degr ... | 2009 | 2710426 |
| electrical discharges in chinese salamander andrias davidianus. | in 2-year-old chinese giant salamanders andrias davidianus, occasional electric discharges with a characteristic pattern similar to the electric discharges of weakly electric catfish, polypterus and protopterus, were recorded for the first time. the discharges markedly differ in shape from the myograms accompanying abrupt movements of the salamander or exceeded them in amplitude by more than an order of magnitude. the discharges were recorded both in the autonomous experiment in the absence of e ... | 2016 | 28058686 |
| projection of brain stem neurons to the giant electromotoneurons in the cervical spinal cord of the electric catfish malapterurus electricus. | two giant electromotoneurons located within the cervical spinal cord form the centerpiece of the electromotor system in the electric catfish malapterurus electricus. the cytoarchitectural organization suggests a high degree of input convergence onto the electromotoneurons. in order to obtain insights into the connectivities of the electromotor system, pre-neurons of the electromotoneurons within the brain stem and the spinal cord were labelled by application of fitc-dextran and horseradish perox ... | 1994 | 8044672 |