The marine herring myxozoan Ceratomyxa auerbachi (Myxozoa: Ceratomyxidae) uses Chone infundibuliformis (Annelida: Polychaeta: Sabellidae) as invertebrate host

Køie, Marianne; Karlsbakk, Egil; Nylund, Are

doi:10.14411/fp.2008.013

Cited by 46 publications

(42 citation statements)

References 21 publications

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“…However, we could not find any actinospores released from N. laevigata maintained in well plates in this study. Most of the actinospores from marine polychaetes have been observed either by collecting coelomic fluid of marine polychaetes with syringe needles or squash preparations (Køie et al 2008;Rangel et al 2009Rangel et al , 2011 and our study was the first trial to observe the release of actinospores from marine polychaetes by well plate method. Rangel et al (2011) mentioned that the wellplate method may not be suitable for relatively big marine polychaetes.…”

Section: Discussionmentioning

confidence: 90%

“…Since the discovery of the myxozoan life cycle by Wolf and Markiw (1984), a lot of fresh water myxozoans have been known to use freshwater oligochaetes as alternate invertebrate hosts . For marine myxozoans, however, polychaetes have been suggested as the best candidates for the alternative invertebrate hosts; seven marine myxozoan life cycles have been elucidated at present time, and all of them are known to use polychaetes as alternative invertebrate hosts (Karlsbakk and Køie 2012;Køie et al 2004Køie et al , 2007Køie et al , 2008Køie et al , 2013Rangel et al 2009), except for Ortholinea auratae using marine oligochaete as marine invertebrate host (Rangel et al 2015). Thus, we exclusively sampled marine invertebrates from the sediment of outflow waterway of fish tank and around the fish farms, then investigated them by microscopic observation and molecular analysis, to find the possible invertebrate hosts they use for transmission.…”

Section: Discussionmentioning

confidence: 99%

“…Currently, more than 30 freshwater myxozoans are known to have two-host life cycles (Yokoyoma et al 2012), but only 7 marine myxozoans are found to have marine invertebrates to complete their life cycles (Karlsbakk and Køie 2012;Køie et al 2004Køie et al , 2007Køie et al , 2008Køie et al , 2013Rangel et al 2015), and neither life cycle nor invertebrate alternate hosts have been elucidated in kudoid myxozoans.…”

Section: Introductionmentioning

confidence: 99%

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Molecular detection of Kudoa septempunctata (Myxozoa: Multivalvulida) in sea water and marine invertebrates

et al. 2017

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The exportation of cultured olive flounder (Paralichthys olivaceus) in Korea has been recently decreasing due to the infections with a myxozoan parasite Kudoa septempunctata, and there is a strong demand for strict food safety management because the food poisoning associated with consumption of raw olive flounder harbouring K. septempunctata has been frequently reported in Japan. The life cycle and infection dynamics of K. septempunctata in aquatic environment are currently unknown, which hamper establishment of effective control methods. We investigated sea water and marine invertebrates collected from olive flounder farms for detecting K. septempunctata by DNA-based analysis, to elucidate infection dynamics of K. septempunctata in aquaculture farms. In addition, live marine polychaetes were collected and maintained in well plates to find any possible actinosporean state of K. septempunctata. The level of K. septempunctata DNA in rearing water fluctuated during the sampling period but the DNA was not detected in summer (June-July in farm A and August in farm B). K. septempunctata DNA was also detected in the polychaetes Naineris laevigata intestinal samples, showing decreased pattern of 40 to 0%. No actinosporean stage of K. septempunctata was observed in the polychaetes by microscopy. The absence of K. septempunctata DNA in rearing water of fish farm and the polychaetes N. laevigata intestinal samples during late spring and early summer indicate that the infection may not occur during this period. N. laevigata was suspected as the possible alternate invertebrate host of K. septempunctata, but the actinosporean stage was not found by well plate method and further studies will be necessary. This research provides important baseline information for understanding the infection dynamics of K. septempunctata in olive flounder farms and further establishment of control strategies.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Molecular detection of Kudoa septempunctata (Myxozoa: Multivalvulida) in sea water and marine invertebrates

et al. 2017

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“…It was shown that the distorting abnor- The life cycle of the parasite is unresolved. Recent studies on the life cycle of marine myxozoans, such as Ellipsomyxa gobii from the common goby (Køie et al 2004), Ceratomyxa auerbachi from herring (Køie et al 2008), Gadimyxa atlantica from gadids (Køie et al 2007), and E. mugilis (Rangel et al 2009), have demonstrated that polychaetes serve as intermediate hosts. Even though Myxobolus groenlandicus n. sp.…”

Section: Discussionmentioning

confidence: 99%

Myxobolus groenlandicus n. sp. (Myxozoa) distorting skeletal structures and musculature of Greenland halibut Reinhardtius hippoglossoides (Teleostei: Pleuronectidae)

Buchmann

Skovgaard²,

Kania³

2012

Dis. Aquat. Org.

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A specimen of Greenland halibut Reinhardtius hippoglossoides (Walbaum, 1792) caught on the west coast of Greenland (Qasigiannguit) was found to possess serious pathological changes in the body musculature. A series of cartilaginous cylindrical structures organized symmetrically at the position of the proximal pterygiophores had changed the musculature and produced irreversible distortions (cavities and holes) in the fillet of the processed fish, leaving it with no value for the industry. Histopathological investigation showed that these structures consisted of hypertrophic cartilage containing numerous myxospore-producing plasmodia. Morphometric and molecular analyses of the parasites showed that both spore morphology and rDNA sequences complied with characteristics of the genus Myxobolus, but no full affiliation with a known species could be found. The parasite is a previously undescribed species, and the name Myxobolus groenlandicus n. sp. is assigned to this new myxobolid.

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“…Freshwater polychaete hosts are represented by only a single sabellid species to date (Bartholomew et al 1997(Bartholomew et al , 2006. Marine annelid hosts include tubificoid naidid oligochaetes (Caullery and Mesnil 1905;Ikeda 1912;Marquès 1984;Roubal et al 1997;Hallett et al 1997aHallett et al , 1998, serpulid, onuphid and spionid polychaetes (Køie 2000(Køie , 2002(Køie , 2003Køie et al 2004Køie et al , 2007Køie et al , 2008Rangel et al 2009Rangel et al , 2011Rangel et al , 2012Karlsbakk and Køie 2012), and sipunculids (a group of unsegmented annelids) (Ikeda 1912).…”

Section: Annelid Hostsmentioning

confidence: 99%

Annelid-Myxosporean Interactions

Alexander

Kerans

El‐Matbouli

et al. 2015

Myxozoan Evolution, Ecology and Development

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This chapter provides an overview of the diversity of annelids parasitized by myxosporeans in both marine and freshwater systems and reviews the interactions between myxosporeans and their annelid hosts during the socalled actinospore phase of the myxosporean life cycle. Both host and environmental factors can influence infection. Our chapter examines these influences from the initial infection of annelids through to the release of spores infectious to fish. Topics covered include how myxosoporean infections may relate to the trophic ecology of annelid hosts and what factors may influence dispersal and increase encounter rates of infectious spores with hosts. We also review the little that is known about annelidmyxosporean interactions, focusing on patterns of host specificity, host susceptibility and host immune defenses. Finally, we examine development within and effects on annelid hosts. To illustrate these interactions we draw primarily on examples from the relatively well-studied freshwater salmon parasites Myxobolus cerebralis and Ceratonova shasta, and interactions with their respective annelid hosts.

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The marine herring myxozoan Ceratomyxa auerbachi (Myxozoa: Ceratomyxidae) uses Chone infundibuliformis (Annelida: Polychaeta: Sabellidae) as invertebrate host

Abstract: Abstract. Sequencing of SSU rDNA showed that actinospores of the tetractinomyxon type, which develop in Chone infundibuliformis Krøyer (Annelida, Polychaeta, Sabellidae) from the northern Øresund, Denmark, are identical with Ceratomyxa auerbachi

Cited by 46 publications

References 21 publications

Molecular detection of Kudoa septempunctata (Myxozoa: Multivalvulida) in sea water and marine invertebrates

Molecular detection of Kudoa septempunctata (Myxozoa: Multivalvulida) in sea water and marine invertebrates

Myxobolus groenlandicus n. sp. (Myxozoa) distorting skeletal structures and musculature of Greenland halibut Reinhardtius hippoglossoides (Teleostei: Pleuronectidae)

Annelid-Myxosporean Interactions

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