Critical Taxonomic Revision of Parabasalids with Description of one New Genus and three New Species

Čepička, Ivan; Hampl, Vladimı́r; Kulda, Jaroslav

doi:10.1016/j.protis.2009.11.005

Cited by 128 publications

(169 citation statements)

References 96 publications

Supporting

Mentioning

150

Contrasting

Unclassified

Order By: Relevance

“…A recent revised classification scheme for D. fragilis (Table 1) is based on the above-mentioned reports and indicates that D. fragilis belongs to the Dientamoebidae family of the newly revised class Tritrichomonadidae and the order Tritrichomonadida of the Parabasalia (25), which contains the previously recognized families Tritrichomonadidae, Monocercomonadidae, and Simplicimonadidae. The new Dientamoebidae family contains four genera, Dientamoeba, Histomonas, Parahistomonas, and Protrichomonas, based on criteria such as the number of nuclei, presence of flagella, and absence of a costa.…”

Section: Taxonomymentioning

confidence: 99%

Dientamoeba fragilis, the Neglected Trichomonad of the Human Bowel

et al. 2016

View full text Add to dashboard Cite

SUMMARYDientamoeba fragilisis a protozoan parasite of the human bowel, commonly reported throughout the world in association with gastrointestinal symptoms. Despite its initial discovery over 100 years ago, arguably, we know less about this peculiar organism than any other pathogenic or potentially pathogenic protozoan that infects humans. The details of its life cycle and mode of transmission are not completely known, and its potential as a human pathogen is debated within the scientific community. Recently, several major advances have been made with respect to this organism's life cycle and molecular biology. While many questions remain unanswered, these and other recent advances have given rise to some intriguing new leads, which will pave the way for future research. This review encompasses a large body of knowledge generated on various aspects ofD. fragilisover the last century, together with an update on the most recent developments. This includes an update on the latest diagnostic techniques and treatments, the clinical aspects of dientamoebiasis, the development of an animal model, the description of aD. fragiliscyst stage, and the sequencing of the firstD. fragilistranscriptome.

show abstract

Section: Taxonomymentioning

confidence: 99%

Dientamoeba fragilis, the Neglected Trichomonad of the Human Bowel

et al. 2016

View full text Add to dashboard Cite

show abstract

“…They belong to the Parabasalia, a group of symbiotic (mutualistic and parasitic) protists that includes the human pathogen Trichomonas vaginalis. In parabasalids, the basic mastigont system consists of three anteriorly directed flagella and one recurrent flagellum (Brugerolle, 1991), connected to the Golgi apparatus by parabasal fibres and typically associated with an axostyle (Brugerolle, 1991;Cepicka et al, 2010). Certain parabasalid lineages, found exclusively in the hindguts of lower termites and woodeating cockroaches of the genus Cryptocercus, have elaborated on this basic mastigont organization and bear hundreds or thousands of flagella (Brugerolle & Lee, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Since the family Calonymphidae was proposed (Grassi & Foà, 1911) to include the genera Calonympha and Microrhopalodina (now known to be an oxymonad genus), nine additional calonymphid genera have been described and molecular phylogenetic analyses have shown that the group consists of two independent lineages (termed the Calonympha-group and Coronympha-group, Cepicka et al, 2010). The genera Coronympha and Metacoronympha were previously included in the family Calonymphidae due to their multiple nuclei and flagella (Kirby, 1939(Kirby, , 1947.…”

Section: Introductionmentioning

confidence: 99%

Molecular and morphological analysis of the family Calonymphidae with a description of Calonympha chia sp. nov., Snyderella kirbyi sp. nov., Snyderella swezyae sp. nov. and Snyderella yamini sp. nov.

Gile

James

Scheffrahn

et al. 2011

International Journal of Systematic and Evolutionary Microbiology

View full text Add to dashboard Cite

Calonymphids are a group of multinucleate, multiflagellate protists belonging to the order Cristamonadida (Parabasalia) that are found exclusively in the hindgut of termites from the family Kalotermitidae. Despite their impressive morphological complexity and diversity, few species have been formally described and fewer still have been characterized at the molecular level. In this study, four novel species of calonymphids were isolated and characterized: Calonympha chia and Snyderella yamini spp. nov., from Neotermes castaneus and Calcaritermes nearcticus from Florida, USA, and Snyderella kirbyi and Snyderella swezyae, spp. nov., from Calcaritermes nigriceps and Cryptotermes cylindroceps from Colombia. Each of these species was distinguished from its congeners by residing in a distinct host and by differences at the molecular level. Phylogenetic analyses of small subunit (SSU) rDNA indicated that the genera Calonympha and Stephanonympha were probably not monophyletic, though the genus Snyderella, previously only represented by one sequence in molecular analyses, appeared with these new data to be monophyletic. This was in keeping with the traditional evolutionary view of the group in which the morphology of the genus Snyderella is considered to be derived, while that of the genus Stephanonympha is ancestral and therefore probably plesiomorphic.

show abstract

“…Podział systematyczny Typu Parabasalia zaproponowany przez Cepicka i wsp. (18) więcej kompleksów kariomastigontów, utworzonych przez jądro komórkowe i kompleks wiciowy. Pod kariomastigontem znajduje się aparat parabazalny, w skład którego wchodzą włókna parabazalne odchodzące od ciałek podstawowych wici oraz aparat Golgiego.…”

unclassified

Systematics, biology and invasiology of trichomonads (Trichomonadida) - the current state of knowledge

Szczepaniak¹,

Tomczuk²,

Łojszczyk-Szczepaniak³

et al. 2017

Medycyna Weterynaryjna

View full text Add to dashboard Cite

Trichomonads are anaerobic, flagellated protists belonging to the large phylum Parabasalia. In most cases, they exist as endosymbionts – harmless comensals of invertebrates and vertebrates – but several species are considered to be imported intestinal or urogenital parasites of humans and other animals. This paper presents current information on the taxonomy, morphology and biology of trichomonads. The characterization of invasiology followed by the description of virulence factors and pathogenic mechanisms of trichomonads is presented. The present paper also reviews diagnostic methods, treatment and prevention of trichomoniasis.

show abstract

Critical Taxonomic Revision of Parabasalids with Description of one New Genus and three New Species

Cited by 128 publications

References 96 publications

Dientamoeba fragilis, the Neglected Trichomonad of the Human Bowel

Dientamoeba fragilis, the Neglected Trichomonad of the Human Bowel

Molecular and morphological analysis of the family Calonymphidae with a description of Calonympha chia sp. nov., Snyderella kirbyi sp. nov., Snyderella swezyae sp. nov. and Snyderella yamini sp. nov.

Systematics, biology and invasiology of trichomonads (Trichomonadida) - the current state of knowledge

Contact Info

Product

Resources

About