Characterization of 28S rRNA sequences of cestoda parasite Electrotaenia malapteruri Fritsch, 1886 from the Electric catfish Malapterurus electricus (Siluriformes: Malapteruridae)

Abdel‐Gaber, Rewaida; Alajmi, Reem A.; Quraishy, Saleh Al; Morsy, Kareem; Rasheid, Khaled A S Al

doi:10.1016/j.actatropica.2018.04.016

Cited by 2 publications

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Proteocephalidea, which has six genera and nineteen species, is one of the most significant orders of cestodes [ 8 ]. Within the family Proteocephalidae, the genus Proteocephalus is a globally distributed parasitizing amphibians, reptiles, and fish [ 9 , 10 ]. All Proteoc ephalus species have planktonic crustaceans, diaptomids, or cyclopid copepods as intermediate hosts, and vertebrates as final hosts, contracting the infection by ingesting them [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Two proteocephalid cestodes in the fish Malapterurus electricus and Heterobranchus bidorsalis from Lake Nasser, Egypt: a morphological, molecular, and histopathological study

Hamouda,

Younis

2024

BMC Vet Res

View full text Add to dashboard Cite

Despite the importance of the electric catfish (Malapterurus electricus) and the African giant catfish (Heterobranchus bidorsalis) in the foodweb of Lake Nasser, Egypt, little is known about their diseases and parasitic fauna. This work describes, for the first time, cestodiasis in M. electricus and H. bidorsalis. Corallobothrium solidum and Proteocephalus sp. were identified morphologically and molecularly from M. electricus and H. bidorsalis, respectively. Using PCR, sequencing, and phylogenetic analysis, the two cestodes shared rRNA gene sequence similarities yet were unique and the two new sequences for the proteocephalid genera were submitted to the GenBank database. The prevalence of infection was 75% and 40% for the two fish species, respectively. Infections significantly increased in the summer and spring and were higher in female fish than in male fish. The intestine was the preferred site of the two adult cestodes. However, in the case of C. solidum some larval cestodes were found outside the intestine in between the skin and abdominal musculature, attached to the mesentery, and within intestinal tunica muscularis. Desquamation of the intestinal epithelium and inflammation at the site of infection in addition to congestion of the intestinal wall of the tapeworm infected fish were evident, indicating that C. solidum and Proteocephalus sp. impacted the infected fish. The larval stages of C. solidum attempted to penetrate the intestine and sometimes they were encircled within fibrous layers infiltrated with inflammatory cells. The infected fish’s musculature was free of cestode infections. Preventive measures should be implemented to prevent the spread of infections.

show abstract

Section: Introductionmentioning

confidence: 99%