Changes in Host and Parasite‐Derived Cellular and Extracellular Matrix Components in Developing Cysts of <i>Myxobolus pendula</i> (Myxozoa)

Martyn, Amanda A.; Hong, Henry; Ringuette, Maurice J.; Desser, Sherwin S.

doi:10.1111/j.1550-7408.2002.tb00362.x

Cited by 17 publications

(10 citation statements)

References 20 publications

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“…This finding is in line with former reports (Adriano et al 2005, Zhang et al 2010. Manera (2016) indicated that fibroblast and collagen encapsulation of plasmodia may protect the parasite against external influences whereas Martyn et al (2002) mentioned that the complexity is probably selectively permeable for nourishing the parasite. The derivation and function of cup-like cells observed here merited a further study to elucidate the host-parasite interaction mechanism.…”

Section: Histopathological Examinationsupporting

confidence: 82%

Histopathological and ultrastructural studies of Myxobolus turpisrotundus from allogynogenetic gibel carp Carassius auratus gibelio in China

Guo

Zhai

et al. 2016

FOLIA PARASIT

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Abstract:During an ongoing systematic survey on species diversity of myxozoans parasitising allogynogenetic gibel carp Carassius auratus gibelio (Bloch) in China, plasmodia were detected in the fins, lip, jaw, gill chamber, gill arches, operculum and oral cavity of infected fish. Combining the morphological and molecular data, the present species was identified as Myxobolus turpisrotundus Zhang, Wang, Li et Gong, 2010. Histopathological examination revealed that despite infecting different organs, M. turpisrotundus always occurred in dermis, demonstrating its affinity to this tissue. Histopathological effect of M. turpisrotundus on the host is relatively mild except parasites in the gill arches producing compression of the adipose tissue and heavy adductor muscles deformation with lymphohistiocytic infiltrates. In addition, the plasmodia in different sites were with the same complex structure arrangement: cup-like cells with unknown derivation, a thin collagenous fibril layer, areolar connective tissue, basement membrane and host epithelial cell. Ultrastructural analysis showed that the parasite has monosporic pansporoblast and sporogenesis followed the usual pattern of most of the myxosporeans.

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Section: Histopathological Examinationsupporting

confidence: 82%

Histopathological and ultrastructural studies of Myxobolus turpisrotundus from allogynogenetic gibel carp Carassius auratus gibelio in China

Guo

Zhai

et al. 2016

FOLIA PARASIT

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“…Some examples of cellular innate responses to piscine myxosporeans are documented, such as the neutrophil and eosinophil-like infiltration during gill inflammation in channel catfish infected with Henneguya spp., whose degranulation within lesions was associated with further host tissue damage (Lovy et al 2011). Furthermore, the time-dependent succession of granulocytes and lymphocytes in the oedemata surrounding Myxobolus pendula branchial cysts was described in creek chub (Martyn et al 2002). Other studies on leukocyte contribution during piscine parasitoses involve tapeworms and acanthocephalans (Dezfuli et al 2011a(Dezfuli et al , b, 2012a(Dezfuli et al , c, 2013Hansen et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Modulation of leukocytic populations of gilthead sea bream (Sparus aurata) by the intestinal parasite Enteromyxum leei (Myxozoa: Myxosporea)

et al. 2013

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S U M M A R YThe cellular mucosal and systemic effectors of gilthead sea bream (GSB) (Sparus aurata) involved in the acute immune response to the intestinal parasite Enteromyxum leei were studied in fish experimentally infected by the anal route. In the intestinal inflammatory infiltrates and in lymphohaematopoietic organs (head kidney and spleen) of parasitized fish, the number of plasma cells, B cells (IgM immunoreactive) and mast cells (histamine immunoreactive) were significantly higher, whereas the number of acidophilic granulocytes (G7 immunoreactive) decreased, compared with non-parasitized and unexposed fish. These differences were stronger at the posterior intestine, the main target of the parasite, and no differences were found in the thymus. In non-parasitized GSB, the percentage of splenic surface occupied by melanomacrophage centres was significantly higher. These results suggest that the cellular response of GSB to E. leei includes proliferation of leukocytes in lymphohaematopoietic organs and recruitment into intestines via blood circulation involving elements of innate and adaptive immunity. Acidophilic granulocytes and mast cells presented opposite patterns of response to the parasite infection, with an overall depletion of the former and an increased amount of the latter. Some differences between both cell types were also detected in regard to their granule density and cell morphology.

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“…The parasitic worm Schistosoma mansoni Sambon, 1907 has been shown to acquire an extensive range of host antigens that are subsequently expressed on the parasite tegument (Abath & Werkhauser 1996). Study of the development of the myxozoan parasite Myxobolus pendula Guilford, 1966 has shown an association of the growth of parasitederived cysts with degradation of host connective tissue and remodelling of fibrillar collagen (Martyn et al 2002). These authors compared and contrasted the morphology of host and parasitic collagen fibres, and suggested that host material was reorganised during cyst development.…”

mentioning

confidence: 99%

Sequential development of Buddenbrockia plumatellae (Myxozoa: Malacosporea) within Plumatella repens (Bryozoa: Phylactolaemata)

McGurk¹,

Morris²,

Adams³

2006

Dis. Aquat. Org.

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Colonies of the freshwater bryozoan Plumatella repens collected from a river in the UK were found to be infected with the myxozoan parasite Buddenbrockia plumatellae following laboratory maintenance. Optimisation of the bryozoan diet allowed maintenance of infected colonies for 90 d, permitting observation by light and electron microscopy of the sequential parasitic developmental cycle. Parasite stages were associated with host peritoneum, identifying the primary developmental phase. The association of B. plumatellae cells with peritoneal basal lamina and morphological similarities between parasite and host suggested that the parasite remodelled host tissue. Progressive expansion and elongation of individual parasites led to the release of freely floating vermiform stages within the host coelomic cavities. Within these 'worms', intraluminal masses developed, resulting in the formation of spores. Upon maturation, the 'worms' ruptured, releasing many spores within the host that were subsequently discharged. Although parasitism led to increased bryozoan fragmentation and lowered statoblast production, some colonies did survive, resulting in repeated waves of infection. Long-term laboratory maintenance of infected bryozoan colonies could provide a means of maintaining B. plumatellae for study until the full life cycle is ascertained.KEY WORDS: Myxozoa · Malacosporea · Bryozoa · Buddenbrockia plumatellae · Development · Remodel Resale or republication not permitted without written consent of the publisherDis Aquat Org 73: [159][160][161][162][163][164][165][166][167][168][169] 2006 focused on the development of B. plumatellae in populations of P. fungosa, Hyalinella punctata Hancock and Fredericella sultana Blumenbach (Canning et al. 2002). However, some details of the developmental cycle within bryozoans remained to be revealed; in particular, the presence of stages preceding coelozoic 'worm' development. Despite contrasting morphologies, molecular evidence led to a proposed synonymy of B. plumatellae and T. bryozoides (Monteiro et al. 2002), with the former name assuming historical precedence.The aim of the present study was to examine developmental stages of Buddenbrockia plumatellae within individual specimens of Plumatella repens. Repeated examination by light microscopy allowed the first description of prolonged sequential development in living hosts. Ultrastructural analysis of infected bryozoan tissue gave further insights into the morphological characteristics of the interaction between this unusual myxozoan parasite and host. MATERIALS AND METHODS Collection and observation of bryozoan colonies.In June 2002, floating branches and areas of plastic sheeting were collected from various locations in the River Avon, Wiltshire, UK (51°00' 09'' N, 1°44' 41'' W). These were examined grossly using a ×10 hand lens for bryozoans. Bryozoan colonies were transported in aerated plastic containers to the laboratory in Stirling, where they were attached to Petri dishes and maintained at 21°C on a diet of alga...

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Changes in Host and Parasite‐Derived Cellular and Extracellular Matrix Components in Developing Cysts of Myxobolus pendula (Myxozoa)

Cited by 17 publications

References 20 publications

Histopathological and ultrastructural studies of Myxobolus turpisrotundus from allogynogenetic gibel carp Carassius auratus gibelio in China

Histopathological and ultrastructural studies of Myxobolus turpisrotundus from allogynogenetic gibel carp Carassius auratus gibelio in China

Modulation of leukocytic populations of gilthead sea bream (Sparus aurata) by the intestinal parasite Enteromyxum leei (Myxozoa: Myxosporea)

Sequential development of Buddenbrockia plumatellae (Myxozoa: Malacosporea) within Plumatella repens (Bryozoa: Phylactolaemata)

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