Propagation of the myxozoan parasite Myxobolus cerebralis by different geographic and genetic populations of Tubifex tubifex: An Oregon perspective

Hallett, Sascha L.; Lorz, Harriet V.; Rasmussen, Charlotte; Xue, Lan; Bartholomew, Jerri L.

doi:10.1016/j.jip.2009.07.001

Cited by 15 publications

(29 citation statements)

References 30 publications

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“…Lineage III T. tubifex worms are prodigious producers of M. cerebralis TAMs even at a dosage of 50 M. cerebralis myxospores worm −1 (Nehring et al 2014). In contrast, studies all across western North America have repeatedly demonstrated that T. tubifex oligochaetes belonging to Lineages IV, V and VI are refractory to M. cerebralis infection (DuBey & Caldwell 2004, DuBey et al 2005, Arsan et al 2007, Hallett et al 2009, Zielinski et al 2011, Nehring et al 2013. Likewise, Limnodrilus hoffmeisteri and Ilyodrilus templetoni are also refractory to the M. cerebralis parasite (Kerans et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Lin-eage I T. tubifex can be infected but only produce TAMs when exposed to dose rates ≥1000 myxospores worm −1 (see Table 6 in Nehring et al 2014). Numerous studies have repeatedly shown T. tubifex Lineages IV, V, and VI from all across western North America to be refractory to M. cerebralis infection (DuBey & Caldwell 2004, DuBey et al 2005, Arsan et al 2007, Hallett et al 2009, Zielinski et al 2011, Nehring et al 2013. Lineage II tubificids, originally described as a European species (Sturmbauer et al 1999, Beauchamp et al 2001, to our knowledge have never been collected in North America or tested for susceptibility to the M. cerebralis parasite.…”

Section: Introductionmentioning

confidence: 99%

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Accelerated deactivation of Myxobolus cerebralis myxospores by susceptible and non-susceptible Tubifex tubifex

Nehring¹,

Schisler²,

Chiaramonte³

et al. 2016

Dis. Aquat. Org.

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In the 1990s, the Tubifex tubifex aquatic oligochaete species complex was parsed into 6 separate lineages differing in susceptibility to Myxobolus cerebralis, the myxozoan parasite that can cause whirling disease (WD). Lineage III T. tubifex oligochaetes are highly susceptible to M. cerebralis infection. Lineage I, IV, V and VI oligochaetes are highly resistant or refractory to infection and may function as biological filters by deactivating M. cerebralis myxospores. We designed a 2-phased laboratory experiment using triactinomyxon (TAM) production as the response variable to test that hypothesis. A separate study conducted concurrently demonstrated that M. cerebralis myxospores held in sand and water at temperatures ≤15°C degrade rapidly, becoming almost completely non-viable after 180 d. Those results provided the baseline to assess deactivation of M. cerebralis myxospores by replicates of mixed lineage (I, III, V and VI) and refractory lineage (V and VI) oligochaetes. TAM production was zero among 7 of 8 Lineage V and Lineage VI T. tubifex oligochaete groups exposed to 12 500 M. cerebralis myxospores for 15, 45, 90 and 135 d. Among 4 mixed lineage exposure groups, TAM production averaged 14 641 compared with 2 202 495 among 12 groups of Lineage III oligochaetes. Among the 6 unexposed Lineage III experimental groups seeded into original Phase 1 substrates for the 45, 90 and 135 d treatments during the Phase 2 portion of the study, TAM production was reduced by 98.9, 99.9 and 99.9%, respectively, compared with the average for the 15 d exposure groups. These results are congruent with the hypothesis that Lineage V and Lineage VI T. tubifex oligochaetes can deactivate and destroy M. cerebralis myxospores.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accelerated deactivation of Myxobolus cerebralis myxospores by susceptible and non-susceptible Tubifex tubifex

Nehring¹,

Schisler²,

Chiaramonte³

et al. 2016

Dis. Aquat. Org.

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“…Interestingly, the genetic diversity observed in Tubifex communities around the world has been associated with different degrees of susceptibility to infection of a freshwater myxozoan parasite: Myxobolus cerebralis (DuBey and Caldwell 2004;Kerans et al 2004: Arsan et al 2007Hallett et al 2009;Lodh et al 2011;Zielinski et al 2011). The latter infects numerous salmonid species to varying degrees (MacConnell and Vincent 2002;Sollid et al 2002), and the infection may culminate in whirling disease.…”

Section: Introductionmentioning

confidence: 99%

Environment health and intraspecific biodiversity in T. tubifex: a preliminary analysis of a population from Apennines springs

Spica

Giampaoli

Buggiotti

et al. 2013

Int. J. Environ. Sci. Technol.

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The cosmopolitan freshwater oligochaete Tubifex tubifex is an important health indicator of the aquatic environment. Water pollutants can affect the intraspecific biodiversity grade of local Tubifex colonies. A genetic profile of specimens collected in an environment with reduced anthropic presence is particularly important to define genetic variability in unperturbed Tubifex populations, and it is still missing in the international literature. Therefore, it has been performed the analysis of lineage composition in a T. tubifex colony from high mountain spring ponds in Central Italy, characterized by a very low concentration of heavy metals. The sampling was performed during spring 2010 and 2011, in the Sett'acque valley (1,900 m above mean sea level), within the township of Lucoli. Data presented in this work depicted a peculiar composition of the population, characterized by a reduced complexity compared to other urban environments, and with no specimens belonging to the lineage I, largely described in many European populations. Interestingly, lineage 2e, previously discovered only in a natural reserve, results to be the most common lineage in this population. Considerations on environmental health and genetic evolution are discussed.

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“…Variation within lineages has also been documented (Beauchamp et al, 2002;Arsan et al, 2007;Rasmussen et al, 2008). Previous assessment of parasitic infection in T. tubifex has been done by observing TAM production (Beauchamp et al, 2002;Kerans et al, 2004Kerans et al, , 2005Rasmussen et al, 2008;Hallett et al, 2009) and by diagnostic PCR originally developed for fish and later used in T. tubifex (Gilbert and Granath, 2001). More recently, qPCR was used to detect the presence of M. cerebralis in T. tubifex (Arsan et al, 2007).…”

mentioning

confidence: 99%

“…More recently, qPCR was used to detect the presence of M. cerebralis in T. tubifex (Arsan et al, 2007). In addition, many studies (Gilbert and Granath, 2001;DuBey and Caldwell, 2004;Koel et al, 2006;Arsan et al, 2007;Baxa et al, 2008;Hallett et al, 2009;Granath and Vincent, 2010) used M. cerebralis diagnostic PCR to confirm infection in worms, which had been visually identified as TAM producers.…”

mentioning

confidence: 99%

Prevalence of Myxobolus cerebralis Infections Among Genetic Lineages of Tubifex tubifex at Three Locations in the Madison River, Montana

Lodh

Stevens

Kerans

2011

Journal of Parasitology

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Propagation of the myxozoan parasite Myxobolus cerebralis by different geographic and genetic populations of Tubifex tubifex: An Oregon perspective

Cited by 15 publications

References 30 publications

Accelerated deactivation of Myxobolus cerebralis myxospores by susceptible and non-susceptible Tubifex tubifex

Accelerated deactivation of Myxobolus cerebralis myxospores by susceptible and non-susceptible Tubifex tubifex

Environment health and intraspecific biodiversity in T. tubifex: a preliminary analysis of a population from Apennines springs

Prevalence of Myxobolus cerebralis Infections Among Genetic Lineages of Tubifex tubifex at Three Locations in the Madison River, Montana

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