A further contribution to the taxonomy of the Trichodinidae (Ciliophora: Peritrichia) and a review of the taxonomic status of some fish ectoparasitic trichodinids

As, J. G. Van; Basson, Linda

doi:10.1007/bf02187051

Cited by 124 publications

(121 citation statements)

References 8 publications

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“…The present specimens showed similar measurements of adhesive disc, denticulate ring and the dimensions of denticles when compared to population B and C of Duncan (1977) and those studied by Van As and Basson (1989). A lower number of denticles was reported in specimens described by Basson (1989, 1992), but a higher number was noted in two populations originally described by Duncan (1977) (Table 1).…”

Section: Remarkssupporting

confidence: 80%

“…Due to the fact that the denticles may present some variability, as supported by Van As and Basson (1989) and Basson and Van As (1994), the specimens herein studied correspond to another report of T. heterodentata in Brazil and channel catfish is reported as a new host. As to confirming the variation that exists in T. heterodentata populations, the present material showed slightly higher measurements of the adhesive disc, denticulate ring, central part width and span than those found in T. heterodentata reported by Al-Rasheid et al (2000) and Asmat (2004), and higher denticulate ring diameter when compared to Dove and O'Donoghue (2005) reports.…”

Section: Remarkssupporting

confidence: 71%

“…Wet mounts from the specimens preserved in 5% formalin solution were studied for the observation of adoral ciliature. All measurements are in micrometres and follow the recommendations of Lom (1958) and Van As and Basson (1989). Arithmetic means ± standard deviation is followed, in parentheses, by the minimum and maximum values and number of specimens or structures measured.…”

Section: Methodsmentioning

confidence: 99%

“…Another point that must be commented is the position of ray and blade in relation to y axes. As demonstrated by illustrations of Van As and Basson (1989Basson ( , 1992) the blade fills the space between y and y -1 axes. The central part is robust filling the space between y and y -1 axes.…”

Section: Remarksmentioning

confidence: 96%

“…This includes Trichodina steini Claparede and Lachmann, 1858 from Bufo ictericus Spix, 1824 (Kattar, 1975), Trichodina acuta Lom, 1961from Xiphophorus maculatus, Gunther, 1866, X. helleri, Heckel, 1848, Betta splendens Regan, 1910 and Carassius auratus Linnaeus, 1758 (Piazza et al, 2006), Trichodina compacta Van As and Basson, 1989 reported by Ghiraldelli et al (2006a) and Trichodina magna Van As and Basson, 1989 by Martins and Ghiraldelli (2008) Pinto et al (2006) and Trichodina heterodentata found on the body and tail of the tadpole Rhinella pombali Baldissera, Caramaschi andHaddad, 2004 (Dias et al, 2009) This study characterises morphologically Trichodina heterodentata Duncan, 1977 in pond-reared channel catfish in the State of Santa Catarina, Southern Brazil. Prevalence, mean intensity of infestation and a list of hosts and comparative measurements were also reported.…”

Section: Introductionmentioning

confidence: 99%

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First record of Trichodina heterodentata (Ciliophora: Trichodinidae) from channel catfish, Ictalurus punctatus cultivated in Brazil

Marchiori

Nunes

et al. 2010

Braz. J. Biol.

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This study characterises morphologically Trichodina heterodentata Duncan, 1977 from channel catfish, Ictalurus punctatus (Rafinesque, 1818) in the State of Santa Catarina, Brazil. Body and gill smears were air-dried at room temperature, impregnated with silver nitrate and/or stained with Giemsa. Ten characteristics were selected to compare the present material with other morphological characterisations of T. heterodentata. Prevalence rate was 100%, mean intensity 89,333.70 (3,125 to 299,100 parasites per host). Trichodina heterodentata was considered medium-sized trichodinid with mean body diameter 59.4 ± 8.5 µm, denticulate ring 38.5 ± 4.5 µm, adhesive disc 60.2 ± 6.7 µm diameter and 24.4 ± 1.6 denticles. In relation to previous reports of T. heterodentata this material resembles in 90% of the analysed characters. This work confirms the biometrical variation that exists in the different populations of T. heterodentata. A list of hosts and comparative measurements of T. heterodentata are presented and the channel catfish is considered a new host.Keywords: channel catfish, trichodinid, Trichodina heterodentata, morphology. Trichodina heterodentata foi considerado um tricodinídeo de tamanho médio com a média do diâmetro do corpo de 59,4 ± 8.5 µm, anel denticulado 38,5 ± 4,5 µm, disco adesivo 60,2 ± 6,7 µm de diâmetro e 24,4 ± 1,6 dentículos. Em relação a registros prévios de T. heterodentata, 90% das características foram semelhantes. Este trabalho confirma a variação biométrica que existe em diferentes populações de T. heterodentata. Uma lista de hospedeiros e medidas comparativas de T. heterodentata são apresentadas e o bagre-do-canal considerado um novo hospedeiro. Primeiro registro dePalavras-chave: bagre do canal, tricodinídeo, Trichodina heterodentata, morfologia.

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Section: Remarkssupporting

confidence: 80%

Section: Remarkssupporting

confidence: 71%

Section: Methodsmentioning

confidence: 99%

Section: Remarksmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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First record of Trichodina heterodentata (Ciliophora: Trichodinidae) from channel catfish, Ictalurus punctatus cultivated in Brazil

Marchiori

Nunes

et al. 2010

Braz. J. Biol.

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Parasitic Diseases in Aquaculture: Their Biology, Diagnosis and Control

Paladini

Longshaw

Gustinelli

et al. 2017

Diagnosis and Control of Diseases of Fish and Shellfish

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The adhesive disc in the mobilid ciliate Trichodina pediculus: Evidence for centrin‐related, calcium‐sensitive filaments

Viguès

Damaj

2012

Cytoskeleton

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The adhesive disc is a highly complex apparatus that allows mobilid ciliates to attach to the tissues of a variety of aquatic invertebrates and vertebrates. The disc comprises concentric rings of rigid skeletal pieces interconnected by filamentous material. This study explored the biochemical properties of the filamentous disc material in the trichodinid Trichodina pediculus. Calcium sensitivity of this material was suggested in vitro by the appearance of transverse cross-striation along bundles of filaments following calcium shock, and complete solubilization of the filamentous material in the presence of EGTA. A 23-kDa immunoanalog of centrins was immunoprecipitated from the EGTA extract. The protein binds calcium as indicated by (45) Ca(2+) blot overlay and Ca(2+) -induced shifts in electrophoretic mobility. Using Ca(2+) /EGTA buffers, we demonstrated a direct relationship between extraction of the filaments and solubilization of the protein. Immunofluorescence and immunoelectron microscopy confirmed that the protein localized to the filamentous disc material and revealed cross-reactivity with the spasmoneme, which is the prototype of ion-sensitive, centrin-like contractile systems in ciliates. The possibility that the filamentous disc material may be a novel example of Ca(2+) -sensitive, centrin-based systems found in ciliates is discussed.

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A further contribution to the taxonomy of the Trichodinidae (Ciliophora: Peritrichia) and a review of the taxonomic status of some fish ectoparasitic trichodinids

Cited by 124 publications

References 8 publications

First record of Trichodina heterodentata (Ciliophora: Trichodinidae) from channel catfish, Ictalurus punctatus cultivated in Brazil

First record of Trichodina heterodentata (Ciliophora: Trichodinidae) from channel catfish, Ictalurus punctatus cultivated in Brazil

Parasitic Diseases in Aquaculture: Their Biology, Diagnosis and Control

The adhesive disc in the mobilid ciliate Trichodina pediculus: Evidence for centrin‐related, calcium‐sensitive filaments

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