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Trematoda

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https://www.readbyqxmd.com/read/29145916/monorchis-lewisi-n-sp-trematoda-monorchiidae-from-the-surf-bream-acanthopagrus-australis-sparidae-in-moreton-bay-australia
#1
T H Cribb, N Q-X Wee, R A Bray, S C Cutmore
We describe Monorchis lewisi n. sp. (Monorchiidae) from the surf bream, Acanthopagrus australis (Günther, 1859) (Sparidae), in Moreton Bay, eastern Australia. The new species differs from most existing species of Monorchis Monticelli, 1893 in its possession of an elongate I-shaped excretory vesicle, and from other congeners in the relative configuration of the gut and suckers. Ovipusillus mayu Dove & Cribb, 1998 is re-reported from Gnathanodon speciosus (Forsskål, 1775) (Carangidae) from Moreton Bay. We report new second internal transcribed spacer (ITS2) and 28S rDNA sequence data for both species...
November 17, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29134026/type-material-of-acanthocephala-nematoda-and-other-non-helminths-phyla-cnidaria-annelida-and-arthropoda-housed-in-the-helminthological-collection-of-the-oswaldo-cruz-institute-fiocruz-chioc-rio-de-janeiro-brazil-from-1979-to-2016
#2
Daniela A Lopes, Delir Corrêa Gomes, Marcelo Knoff
The third part of the catalogue of type material in the Helminthological Collection of the Oswaldo Cruz Institute/FIOCRUZ (CHIOC), comprising types deposited between 1979 and 2016, is presented to complement the first list of all types that was published in 1979. This part encompasses Acanthocephala, Nematoda and the other non-helminth phyla Cnidaria, Annelida, and Arthropoda. Platyhelminthes was covered in the first (Monogenoidea) and second (Rhabditophora Trematoda and Cestoda) parts of the catalogue published in September 2016 and March 2017, respectively...
2017: ZooKeys
https://www.readbyqxmd.com/read/29103275/new-record-of-aspidogaster-ijimai-kawamura-1913-trematoda-aspidogastridae-from-cyprinus-carpio-in-korea
#3
Dongmin Lee, Hansol Park, Seongjun Choe, Yeseul Kang, Hyeong-Kyu Jeon, Keeseon S Eom
Aspidogastrid trematodes (Subclass Aspidogastrea) are a relatively small group with a characteristic adhesive disc and parasitize in a variety of cold-blooded hosts. Until now, only 2 species in the genus Cotylaspis, i.e., C. coreensis and C. sinensis, have been reported as the aspidogastrid trematode in the Republic of Korea (=Korea). In the present study, we intended to describe a species of aspidogastrids collected from the small intestine of the common carp, Cypri-nus carpio, in a faunistic point of view...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29100926/blood-flukes-cardicola-parvus-and-c-laruei-trematoda-aporocotylidae-life-cycles-and-cryptic-infection-in-spotted-seatrout-cynoscion-nebulosus-teleost-sciaenidae
#4
Sasha V Siegel, Andrea Rivero, Jenna Oberstaller, Beatrice L Colon, Isaure de Buron, Dennis E Kyle
Aporocotylidae comprises a diverse family of fish blood flukes, with adults found in blood or body cavity of marine, brackish, or freshwater fish. Aporocotylids are unique among the Digenea with many developing in polychaetes. The life cycle has been elucidated for only a few species that develop in polychaetes from marine/brackish environments and none for western Atlantic aporocotylids. The basis for this study was observations of blood fluke larvae in terebellids from South Carolina, USA in 1982 prior to possible usage of molecular tools to specifically identify parasite larvae...
October 31, 2017: Parasitology International
https://www.readbyqxmd.com/read/29066170/codon-usage-pattern-of-complex-iii-gene-of-respiratory-chain-among-platyhelminthes
#5
Gulshana A Mazumder, Arif Uddin, Supriyo Chakraborty
Codon usage bias refers to the phenomenon where synonymous codons are used with unequal frequencies. To understand the patterns of codon usage in mitochondrial cytochrome B (MT-CYB) gene of phylum platyhelminth we used bioinformatic approaches to analyze the protein coding sequences of five different classes - cestoda, monogenea, rabditophora, trematoda and turbellaria. It was found from nucleotide composition analysis that in all the classes, A/T-ended codons were preferred over G/C-ended codons. From box plot analysis GC1 found to have highest response to codon usage bias...
October 21, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29035851/mitochondrial-genotyping-of-fascioloides-magna-from-bavaria-germany
#6
Eva Bazsalovicsová, Ludmila Juhásová, Ivica Králová-Hromadová, Steffen Rehbein
In last few years, a great effort has been made to understand genetic interrelationships of European and North American populations of giant liver fluke Fascioloides magna (Trematoda, Fasciolidae). In Europe, spatial distribution of this parasite is evidently dynamic and ongoing process since new F. magna populations have constantly been emerging. Most recently, occurrence of F. magna in red deer (Cervus elaphus), sika deer (Cervus nippon), fallow deer (Dama dama), roe deer (Capreolus capreolus), and wild boar (Sus scrofa) was reported from north-eastern Bavaria in Germany...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035247/importance-of-land-snails-in-dicrocoeliosis-epidemiology
#7
Gözde Gürelli
Dicrocoeliosis is a helminthosis caused by the small liver fluke Dicrocoelium spp. (Trematoda, Dicrocoeliidae) parasitizing in the bile ducts and gall bladder of ruminants as well as many other animal species including humans. In the biological life cycle of Dicrocoelium, land snails are first intermediate hosts and ants are second intermediate hosts. Sporocysts and cercaria, which are larval stages, live in the hepatopancreas of land snails and metacercaria, which is also the larval stage, lives in the abdomen and brain of ants...
September 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29031680/soluble-expression-and-purification-of-a-full-length-asparaginyl-trna-synthetase-from-fasciola-gigantica
#8
R Vijayakumar, Timir Tripathi
We report the molecular cloning, expression, and single-step homogeneous purification of a full-length asparaginyl tRNA synthetase (NRS) from Fasciola gigantica (FgNRS). Fasciola gigantica is a parasitic liver fluke of the class Trematoda. It causes fascioliasis that infects the liver of various mammals, including humans. Aminoacyl tRNA synthetases (AARS) catalyze the first step of protein synthesis. They attach an amino acid to its cognate tRNA, forming an amino acid-tRNA complex. The gene that codes for FgNRS was generated by amplification by polymerase chain reaction...
October 12, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/29017625/molecular-data-reveal-high-diversity-of-uvulifer-trematoda-diplostomidae-in-middle-america-with-the-description-of-a-new-species
#9
A López-Jiménez, G Pérez-Ponce de León, M García-Varela
Members of the genus Uvulifer are distributed worldwide and infect aquatic snails and freshwater fishes as first and second intermediate hosts, respectively, and fish-eating birds (kingfishers) as definitive hosts. Metacercariae of Uvulifer spp. were collected from the fins and skin of 20 species of freshwater fishes in Mexico, Guatemala, Honduras, Nicaragua and Costa Rica, and the adults were recovered from the intestine of kingfishers in four localities of Mexico. The genetic divergence among 76 samples (64 metacercariae and 12 adults) was estimated by sequencing the 28S and 5...
October 11, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29017541/cardiovascular-flukes-trematoda-spirorchiidae-in-caretta-caretta-linnaeus-1758-from-the-mediterranean-sea
#10
Erica Marchiori, Enrico Negrisolo, Rudi Cassini, Luisa Garofalo, Lisa Poppi, Cinzia Tessarin, Federica Marcer
BACKGROUND: The northern Adriatic Sea represents one of the most important neritic foraging grounds for the loggerhead sea turtle Caretta caretta L. in the Mediterranean Sea. Four genera of blood flukes with variable prevalence and pathogenic impact have been reported worldwide in this species. Hapalotrema Looss, 1899 and Amphiorchis Price, 1934 are the only two genera reported in Mediterranean waters; however, updated data describing spirorchiidiasis in the central and eastern Mediterranean and infection prevalence are still lacking...
October 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28993292/inter-individual-and-intragenomic-variations-in-the-its-region-of-clonorchis-sinensis-trematoda-opisthorchiidae-from-russia-and-vietnam
#11
Yulia V Tatonova, Galina N Chelomina, Hung Manh Nguyen
Here we examined the intraspecific genetic variability of Clonorchis sinensis from Russia and Vietnam using nuclear DNA sequences (the 5.8S gene and two internal transcribed spacers of the ribosomal cluster). Despite the low level of variability in the ITS1 region, this marker has revealed some features of C. sinensis across multiple geographic regions. The genetic diversity levels for the Russian and Vietnamese populations were similar (0.1 and 0.09%, respectively) but were significantly lower than the C. sinensis from China (0...
October 6, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28974273/helminth-parasites-of-the-endangered-hooded-grebe-podiceps-gallardoi-from-patagonia-argentina-with-the-description-of-two-new-digenean-species
#12
V Núñez, F Drago, S Jones, L Lunaschi
In March 2011, a predator killed 33 hooded grebes, Podiceps gallardoi Rumboll (Podicipedidae), a critically endangered species, in a nesting colony at El Cervecero Lake, Santa Cruz Province, Argentina. The viscera of ten birds were examined for helminths. Two new species of Trematoda were recovered from the intestines. The plagiorchid Plagiorchis patagonensis n. sp. is mainly characterized by the larger size of the oral sucker relative to the ventral sucker, and by the distribution of the vitellarium in two lateral fields, confluent between the caecal bifurcation and the ventral sucker...
October 4, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28954016/morphology-of-echinostoma-paraensei-lie-basch-1967-trematoda-cercariae
#13
F Almeida Matos, V Sant'Anna, A Maldonado, J Pinheiro
No abstract text is available yet for this article.
September 21, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28917319/morphological-and-molecular-analyses-of-tylodelphys-spp-metacercaria-trematoda-diplostomidae-from-the-vitreous-humour-of-two-freshwater-fish-species-channa-gachua-ham-and-puntius-sophore-ham
#14
Anshu Chaudhary, Shivi Gupta, Richa Tripathi, Hridaya S Singh
Trematodes of family Diplostomatidae consists of a large and diverse group of parasites which have larval stages that are very important pathogens of wild and cultured freshwater fishes worldwide, can cause serious impacts. Our understanding of the diplostomids diversity, though, remains deficient and limited especially in India. In the present study, the morphology and molecular characterization of Tylodelphys spp. from the vitreous humour of eye, collected from two economically important food fish, dwarf snakehead Channa gachua (Perciformes: Channidae) and pool barb Puntius sophore (Cypriniformes: Cyprinidae) were described from Bijnor and Meerut, Uttar Pradesh (U...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28866753/two-new-and-one-known-species-of-tergestia-stossich-1899-trematoda-fellodistomidae-with-novel-molecular-characterisation-for-the-genus
#15
Nicholas Q-X Wee, Scott C Cutmore, Russell Q-Y Yong, Thomas H Cribb
Combined morphological and molecular analyses are employed to characterise three species of Tergestia Stossich, 1899 (Digenea: Fellodistomidae) from fishes of Moreton Bay, Queensland, Australia. Tergestia clonacantha Manter, 1963 is reported here for the first time from the halfbeak (Beloniformes: Hemiramphidae) species Arrhamphus sclerolepis krefftii (Steindachner), Hyporhamphus australis (Steindachner), H. quoyi (Valenciennes) and H. regularis ardelio (Whitley). Two new species, both infecting trevally (Perciformes: Carangidae) species, are described: T...
October 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28831562/phylogenetic-position-of-the-family-orientocreadiidae-within-the-superfamily-plagiorchioidea-trematoda-based-on-partial-28s-rdna-sequence
#16
S G Sokolov, S V Shchenkov
Trematodes of the family Orientocreadiidae are mostly parasites of freshwater fishes. Here, the phylogenetic position of this family is inferred based on the partial 28S rDNA sequence from a representative of the genus Orientocreadium s. str.-О. pseudobagri Yamaguti, 1934. Sequences were analysed by maximum likelihood and Bayesian inference algorithms. Both approaches placed the Orientocreadiidae within a clade corresponding to the superfamily Plagiorchioidea and supported the family Leptophallidae as a sister taxon...
October 2017: Parasitology Research
https://www.readbyqxmd.com/read/28807668/evidence-that-blood-flukes-trematoda-aporocotylidae-of-chondrichthyans-infect-bivalves-as-intermediate-hosts-indications-of-an-ancient-diversification-of-the-schistosomatoidea
#17
Thomas H Cribb, Rowan C Chick, Wayne O'Connor, Stephan O'Connor, Daniel Johnson, Kim B Sewell, Scott C Cutmore
Blood flukes (Aporocotylidae) of actinopterygians (bony fishes) have been shown to infect freshwater gastropods and marine polychaetes as intermediate hosts. However, no life cycle is known for any aporocotylid of chondrichthyans (cartilaginous fishes) and no adult aporocotylid has been linked to a cercaria infecting a bivalve. Here we report two novel infections that fill these gaps. Cercariae consistent with the family Aporocotylidae were found developing in sporocysts in the gonad of the surf pipi, Donax deltoides Lamarck, 1818 (Bivalvia: Donacidae), from Stockton Beach, central New South Wales, Australia...
November 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28799088/metazoan-parasites-from-odontocetes-off-new-zealand-new-records
#18
Kristina Lehnert, Haseeb Randhawa, Robert Poulin
Information about the parasite fauna of spectacled porpoises and cetaceans from New Zealand waters in general is scarce. This study takes advantage of material archived in collections of the Otago Museum in Dunedin and Massey University in Auckland, sampled from cetacean species found stranded along the New Zealand coastline between 2007 and 2014. Parasites from seven species of cetaceans (spectacled porpoise, Phocoena dioptrica (n = 2 individuals examined); pygmy sperm whale (n = 1); long-finned pilot whale, Globicephala melas (n = 1); Risso's dolphin, Grampus griseus (n = 1); short-beaked common dolphin, Delphinus delphis (n = 7); striped dolphin, Stenella coeruleoalba (n = 3) and dusky dolphin, Lagenorhynchus obscurus (n = 2)) from the respiratory and gastro-intestinal tract, cranial sinus, liver, urogenital and mammary tract, fascia and blubber were investigated...
October 2017: Parasitology Research
https://www.readbyqxmd.com/read/28769607/type-material-of-platyhelminthes-housed-in-the-helminthological-collection-of-the-oswaldo-cruz-institute-fiocruz-chioc-rio-de-janeiro-brazil-from-1979-to-2016-rhabditophora-trematoda-and-cestoda
#19
Daniela A Lopes, Adriana Mainenti, Marcelo Knoff, Delir Corrêa Gomes
The second part of the catalogue of type material deposited in the Helminthological Collection of the Oswaldo Cruz Institute/ FIOCRUZ (CHIOC), between 1979 and 2016, is presented, to complement the first list of all types that was published in 1979. This part includes Platyhelminthes other than monogenoids, which were covered in the first part published in September 2016. The present catalogue comprises type material for 104 species, distributed across three classes, 40 families and 75 genera. Species names are listed systematically, followed by type host, infection site, type locality and specimens with their collection numbers and references...
2017: ZooKeys
https://www.readbyqxmd.com/read/28754617/infection-by-schistosoma-mansoni-during-pregnancy-effects-on-offspring-immunity
#20
REVIEW
Vanessa Ribeiro Figliuolo da Paz, Danielly Sequeira, Alexandre Pyrrho
About 25 million Brazilians live in areas at risk of contracting the disease caused by the trematoda Schistosoma mansoni, the schistosomiasis mansoni. Although the adult parasites inhabit the blood vessels, probably the main element responsible for the pathology of the disease are the eggs, whose deposition in the liver results in formation of granulomas and hypersensitivity mediated by CD4 T cells. In the course of infection, the profile of T helper 1 (Th1) and Th2 cytokines released by immune cells is correlated with the extent of inflammation in the granuloma and with the disease severity...
July 25, 2017: Life Sciences
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