Morphological, ultrastructural and phylogenetic analyses of Myxobolus hilarii n. sp. (Myxozoa, Myxosporea), a renal parasite of farmed Brycon hilarii in Brazil

Capodifoglio, Kassia R.H.; Adriano, Edson A.; Milanin, Tiago; Silva, Marcia R.M.; Maia, Antônio Augusto Mendes

doi:10.1016/j.parint.2015.12.006

Cited by 23 publications

(10 citation statements)

References 38 publications

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“…The interspecific divergence within Myxobolus ranged between 0.1%-3.0% thus supporting the distinct status of the new species (Andree et al, 1999 (Fiala, 2006). The clustering of myxozoans in clades by host order and host family observed shows a tendency that parasites of the genus Myxobolus and Henneguya had a polyphyletic origin with the host specificity influencing parasitism (Capodifoglio et al, 2016).…”

Section: Discussionsupporting

confidence: 53%

“…The use of molecular data in conjunction with morphological analysis has been used to describe new species of myxozoans (e.g. Carriero et al, 2013;Capodifoglio et al, 2016). The main goal of this study was to describe a new species of Myxobolus, found in the gills of I. mirini during a parasitological survey, based on light microscopy, histology and assessment of its phylogenetic relationships with other representatives of the family Myxobolidae Thélohan, 1892 from South America.…”

Section: Introductionmentioning

confidence: 99%

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Myxobolus imparfinis n. sp. (Myxozoa: Myxosporea), a new gill parasite of Imparfinis mirini Haseman (Siluriformes: Heptapteridae) in Brazil

et al. 2018

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A new species of myxozoan, Myxobolus imparfinis n. sp. is described based on material from the gills of Imparfinis mirini (Haseman) (Heptapteridae). Mature myxospores are round, measuring 7.1-8.4 (7.9 ± 0.3) μm in length, 4.5-6.2 (5.5 ± 0.5) μm in width and 3.1-4.2 (3.7 ± 0.3) μm in thickness. The polar capsules are of unequal size, the larger polar capsule measuring 3.4-4.5 (3.9 ± 0.3) μm in length and 1.4-2.0 (1.7 ± 0.1) μm in width and the smaller capsule measuring 3.1-3.8 (3.4 ± 0.2) μm in length and 1.2-1.8 (1.5 ± 0.2) μm in width. The polar filament presents 6-7 coils. Spores had a prevalence of infection of 75% (6/8). In histological analyses we detected the development site of spores in primary filaments, in afferent branchial artery, thus classifying the type of infection to the filamental type and vascular subtype. The phylogenetic analyses of a dataset including species Myxobolus Bütschli, 1882 and Henneguya Thélohan, 1892 from South America recovered M. imparfinis n. sp. as a sister species of Myxobolus flavus Carriero, Adriano, Silva, Ceccarelli & Maia, 2013. To our knowledge, this is the first record of a myxozoan species parasitising I. mirini.

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Section: Discussionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Myxobolus imparfinis n. sp. (Myxozoa: Myxosporea), a new gill parasite of Imparfinis mirini Haseman (Siluriformes: Heptapteridae) in Brazil

et al. 2018

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“…Phylogenetic analysis performed here supports previous work that suggests host family and tissue tropism which are strong phylogenetic signals for myxobolid species parasitizing families of South American fishes (Eszterbauer 2004;Fiala 2006;Carriero et al 2013;Capodifoglio et al 2016). We obtained a well-supported phylogenetic tree demonstrating two polyphyletic groups, one composed of species of Myxobolus and another composed primarily of species of Henneguya.…”

Section: Discussionsupporting

confidence: 89%

“…salminus 10.1 ± 0.4 6.1 ± 0.4 5.0 ± 0.6 4.6 ± 0.2 1.7 ± 0.1 7-8 Gill Salminus brasiliensis Adriano et al (2009) All measurements are in μm LPC length of polar capsule, WPC width of polar capsule, CPF number of coils of polar filament, -no data families Bryconidae and Serrasalmidae Bleeker, 1859. Carriero et al (2013) and Capodifoglio et al (2016) suggested myxobolids parasitizing members of the Bryconidae had a polyphyletic origin, with phylogenetic placement largely influenced by host species, consistent with trends reported here. Comparatively, Molnár (1994) suggested tissue affinity is an important character for specific assignment.…”

Section: Discussionsupporting

confidence: 85%

Morphological and molecular description of Myxobolus batalhensis n. sp. (Myxozoa, Myxosporea), a liver and ovary parasite of Salminus hilarii in Brazil

et al. 2017

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Plasmodia containing myxospores belonging to the genus Myxobolus Bütschli, 1882 were found in the ovaries and liver of Salminus hilarii. Despite its economic value, this fish host has no previous reports of myxozoan infections. Herein, we describe Myxobolus batalhensis n. sp. using morphological and ultrastructural data, as well as histological and SSU rDNA molecular data. The mature myxospores were elongated, measuring in average 15.2 ± 0.8 μm in length, 8.4 ± 0.4 μm in width, and 5.1 ± 0.2 μm in thickness. Polar capsules were elongated and measured 5.3 ± 0.3 μm in length and 2.8 ± 0.3 μm in width. Polar filaments had 6-9 coils. Histopathological analysis showed coagulation necrosis associated with cell lysis as a response of the host cell to the parasite in the ovaries. No inflammatory reaction was observed in the liver, although the presence of the plasmodia caused changes in tissue structure. The phylogenetic analysis of South American myxobolid species showed M. batalhensis n. sp. as sister species of Myxobolus aureus. This is the first report of a myxozoan species parasitizing S. hilarii and the first myxozoan species described in the Batalha river.

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“…For the first time, Wolf and Markiw, 1984, elucidated CAPODIFOGLIO et al, 2016;MAIA;ADRIANO, 2016;MILANIN et al, 2010;NALDONI et al, 2009;ROCHA et al, 2014;VELASCO et al, 2016;ZATTI et al, 2015;.…”

Section: Life Cyclementioning

confidence: 99%

Systematics and molecular characterization of new myxosporean species parasites of >i<Colossoma macropomum>/i< and >i<Piaractus brachypomus>/i< from the Amazon basin and remarks on mitochondrial behavior in myxosporeans

Capodifoglio¹

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Morphological, ultrastructural and phylogenetic analyses of Myxobolus hilarii n. sp. (Myxozoa, Myxosporea), a renal parasite of farmed Brycon hilarii in Brazil

Cited by 23 publications

References 38 publications

Myxobolus imparfinis n. sp. (Myxozoa: Myxosporea), a new gill parasite of Imparfinis mirini Haseman (Siluriformes: Heptapteridae) in Brazil

Myxobolus imparfinis n. sp. (Myxozoa: Myxosporea), a new gill parasite of Imparfinis mirini Haseman (Siluriformes: Heptapteridae) in Brazil

Morphological and molecular description of Myxobolus batalhensis n. sp. (Myxozoa, Myxosporea), a liver and ovary parasite of Salminus hilarii in Brazil

Systematics and molecular characterization of new myxosporean species parasites of >i<Colossoma macropomum>/i< and >i<Piaractus brachypomus>/i< from the Amazon basin and remarks on mitochondrial behavior in myxosporeans

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