Nematode parasites of vertebrates: their development and transmission. 2nd edition. Introduction.

Anderson, Roy C.

doi:10.1079/9780851994215.0001

Cited by 483 publications

(861 citation statements)

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“…The high prevalence and intensity of infection recorded for this parasite (47.7 %/10.2 worms per infect host) bears direct relationship with the high population density of mosquitoes in the locality. This observation is in agreement with Anderson (2000), who had incriminated haematophagus insects in the transmission of these parasites. In addition to R. africanus (Kuzmin, 2001), which infects bufonids there are other undetermined Rhabdias spp.…”

Section: Discussionsupporting

confidence: 81%

Parasitic infections of anurans from a freshwater creek community in Delta State, Niger Delta of Nigeria

2017

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SummaryThe parasitic infections of 125 anurans belonging to 13 taxa from Ase community in Delta State in the Niger Delta of Nigeria was investigated. An overall prevalence of 77.6% was recorded and the 32 parasites recovered included one pentastomid, four cestode, four monogenean, ten digenean and thirteen nematode taxa. Among the anurans examined, Ptychadena bibroni harboured the highest number of parasites. Most of the parasites encountered were adults but some occurred as larvae, which either used the amphibians as intermediate or transport hosts. Hylarana galamensis is considered an accidental host for the larval brachylaimid trematode and, a new host record for the larval strigeiod while Polystoma galamensis infection of this frog is made for the fi rst time outside the savannah biotope. Hymenochirus sp. is a new host record for Progonimodiscus colubrifer. Two Foleyellides spp., one occurring in Hyperolius concolor, Afrixalus fulvovitattus and Sclerophys regularis and the other in H. galamensis occur in the study area.

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Section: Discussionsupporting

confidence: 81%

Parasitic infections of anurans from a freshwater creek community in Delta State, Niger Delta of Nigeria

2017

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“…Based on their fi ndings and the presumption that the sequences could be derived from larval nematode stages, they discussed the possible role of reptiles as paratenic hosts. For piscivorous birds, Anderson (2000) mentioned the encapsulation of the infective third-stage larvae of acuarioids in the intestine or on the mesenterium of paratenic hosts, such as frogs or fi sh. The possible transfer of the third-stage larvae between paratenic host species was considered (Anderson, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…Most of the representatives of the superfamily Acuarioidea parasitize the upper digestive tract of birds (Anderson, 2000). After a fi rst description as Spiroptera laticeps in the esophagus of the rough-legged buzzard (Buteo lagopus) by Rudolphi (1819), Siebold (1837) described this species as Spiroptera fallax in the gizzard of the barn owl (Tyto alba).…”

Section: Synhimantus (Synhimantus) Laticepsmentioning

confidence: 99%

“…The left spicule can reach three (Etchegoin et al, 2000) to four (Acosta et al, 2008) times the length of the right one. The eggs of all acuarioids are oval, thick-shelled and contain a fi rst stage larva upon excretion (Anderson, 2000). Male individuals parasitizing the gizzard of the barn owl (T. alba) can reach a body length of 3.37 -6.24 mm, females in this host can be 4.71 -5.00 mm long (Etchegoin et al, 2000).…”

Section: Synhimantus (Synhimantus) Laticepsmentioning

confidence: 99%

“…Due to the fact that adult stages mainly occur in birds of the order Accipitriformes, Falconiformes and Strigiformes it was hypothesized that small vertebrates could be involved as intermediate hosts (Cram, 1927). Anderson (2000) suggested a possible development of acuariid nematodes from terrestrial hosts in a broad variety of arthropod intermediate hosts, e.g. isopods, grasshoppers, beetles and diplopods.…”

Section: Synhimantus (Synhimantus) Laticepsmentioning

confidence: 99%

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Morphological and molecular genetic analysis of Synhimantus (Synhimantus) laticeps (Rudolphi, 1819) (Nematoda, Acuariidae) from the barn owl (Tyto alba) and the common kestrel (Falco tinnunculus) in Austria

et al. 2017

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SummaryIn the framework of the biodiversity initiative and barcoding project "Austrian Barcode of Life" (ABOL) post mortem examinations of the gastro-intestinal tracts of different species of wild birds were carried out and several adult helminths were retrieved. In the gizzard of two barn owls (Tyto alba) and one common kestrel (Falco tinnuculus) acuariid nematodes belonging to the species Synhimantus (Synhimantus) laticeps (Rudolphi, 1819) were discovered. This report illustrates the identifi cation of this parasitic nematode by morphometric comparison and scanning electron microscopic photographs. Furthermore, genetic identifi cation of individual parasites based on a fragment of the mitochondrial cytochrome c oxidase subunit I (COI) gene and the nuclear 18S ribosomal RNA gene was carried out. This report constitutes the fi rst COI-based DNA barcoding of S. (S.) laticeps and its fi rst record in the barn owl (Tyto alba) in Austria.

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Structure, Function and Evolution of The Nematode Genome

Rödelsperger

Streit

Sommer

2013

Encyclopedia of Life Sciences

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In the past few years, an increasing number of draft genome sequences of multiple free‐living and parasitic nematodes have been published. Although nematode genomes vary in size within an order of magnitude, compared with mammalian genomes, they are all very small. Nevertheless, nematodes possess only marginally fewer genes than mammals do. Nematode genomes are very compact and therefore form a highly attractive system for comparative studies of genome structure and evolution. Strikingly, approximately one‐third of the genes in every sequenced nematode genome has no recognisable homologues outside their genus. One observes high rates of gene losses and gains, among them numerous examples of gene acquisition by horizontal gene transfer. Not only does the ‘gene for parasitism’ not exist, but also there appear to be no common genomic characteristics of parasitic nematode genomes which would distinguish them from genomes of free‐living nematodes. Key Concepts: Nematode genomes tend to be compact. Nematode genomes vary in their gene composition due to extensive gene gain and loss. Genes are lost through gene deletion or rapid evolutionary change beyond the point where they can be recognised as homologous to a gene in another species. Genes are acquired through gene duplication, de novo formation and horizontal gene transfer. Horizontal gene transfer allows nematode species to acquire new physiological properties. All nematode genomes sequenced so far contain operons, multigene transcription units giving rise to a single pre‐mRNA, which is broken up into single protein coding mRNAs by trans‐splicing and polyadenylation. Within the nematodes parasitism has arisen multiple times independently and a ‘gene for parasitism’ or unifying parasite genomic features were not identified.

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Nematode parasites of vertebrates: their development and transmission. 2nd edition. Introduction.

Abstract: This introductory chapter provides an overview of the taxonomy, evolution, ecology, biological development and transmission of nematodes parasitic to humans and domestic and wild animals.

Cited by 483 publications

References 0 publications

Parasitic infections of anurans from a freshwater creek community in Delta State, Niger Delta of Nigeria

Parasitic infections of anurans from a freshwater creek community in Delta State, Niger Delta of Nigeria

Morphological and molecular genetic analysis of Synhimantus (Synhimantus) laticeps (Rudolphi, 1819) (Nematoda, Acuariidae) from the barn owl (Tyto alba) and the common kestrel (Falco tinnunculus) in Austria

Structure, Function and Evolution of The Nematode Genome

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