<i>Pleistophora mirandellae</i> Vaney &amp; Conte, 1901, a microsporidian parasite in cyprinid fish of rivers in Herault: taxonomy and histopathology

Maurand, J.; Loubès, C.; Gasc, Charles; Pelletier, J.; Barral, J.

doi:10.1111/j.1365-2761.1988.tb00546.x

Cited by 24 publications

(20 citation statements)

References 5 publications

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“…P mirandellae (reported as Plistophora elegans) has also been observed in dead white ova of pike and perch from Simo (Pulliainen et al 1992). In addition, Maurand et al (1988) reported that oocytes infected with P rnirandellae become whitish and opaque. In the present study white and opaque oocytes together with normal (yellow) oocytes were frequently observed in affected ovaries of roach.…”

Section: Discussionmentioning

confidence: 99%

Gonadal impairment in roach Rutilus rutilus from Finnish coastal areas of the northern Baltic Sea

Wıklund¹,

Lounasheimo²,

Lom³

et al. 1996

Dis. Aquat. Org.

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Gonadal impairment in roach Rutilus rutilus from Finnish coastal waters was studied during 1987-1995. The disease was observed in high prevalence (>10%, for roach in length class 25-30 cm) in roach from 4 sites in the Archipelago Sea, from one site influenced by cooling water dscharge from a nuclear power plant in Gulf of Bothnia, and in roach from one site close to a metal processing plant in the northern Gulf of Bothnia. The sites in the Archipelago Sea were not directly affected by industrial pollution. The disease was most prevalent in large (old) female roach, and it was characterized by degeneration of the ovaries ranging from weak tissue changes in one ovary to complete absence or destruction of both ovaries. Oocytes, in affected gonads, were frequently infected by a microsporidian parasite Pleistophora mirandellae. In males atretic testes were never observed and only small cysts, containing P mirandellae, were detected. In several affected roach, both male and female reproductive tissues were observed. The observed pathological changes in the ovaries of roach are suggested to be caused by P mirandellae.

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Section: Discussionmentioning

confidence: 99%

Gonadal impairment in roach Rutilus rutilus from Finnish coastal areas of the northern Baltic Sea

Wıklund¹,

Lounasheimo²,

Lom³

et al. 1996

Dis. Aquat. Org.

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“…We were unable to obtain good transmission electron micrographs of the developmental stages, meronts, and sporogonial plasmodia, probably due to the fact that fixation of material was done at room temperature (see Leiro et al 1996). In some Pleistophora species, 2 types of spore (macrospores and microspores) are produced, as described for P. littoralis, P. typicalis, P. mirandellae (now Ovipleistophora mirandellae), P. duodecimae, and P. priacanthusis (Canning & Nicholas 1980, Lom et al 1980, Hua & Dong 1983, Maurand et al 1988, Lom 2002). In our study, only microspores were observed in the fresh mounts and in several ultrathin sections.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of microsporidians Glugea hertwigi and Pleistophora ladogensis, in smelt Osmerus eperlanus from two German rivers, North Sea coast

Costa

Melo-Moreira²,

Carvalho³

2016

Dis. Aquat. Org.

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“…Heterosporis anguillarum (formerly Pleistophora anguillarum) has multiple coils (33-46) arranged in one row in the anterior half of spore, and in three rows in the posterior part (Lom et al 2000). Gonad-infecting O. mirandella shows 35 coils that are disposed in 2-3 rows (Maurand et al 1988), and recently described Myosporidium merluccius shows 6-7 wide anisofilar coils and 5 narrow coils in two rows (Baquero et al 2005). These genera, although sharing similarities to the layering of the polar filament, do not share any other morphological features with tuna microsporidium.…”

Section: Discussionmentioning

confidence: 99%

A new xenoma-forming microsporidium infecting intestinal tract of Atlantic bluefin tuna (Thunnus thynnus)

Mladineo

Lovy

2011

Acta Parasitologica

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An undescribed species of Microsporidia Balbiani, 1882 was isolated from the muscularis mucosa of the intestinal mucosa of the reared Atlantic bluefin tuna (Thunnus thynnus). Transmission electron microscopy showed that the pyriform unikaryotic microsporidium, measuring 3.6 µm ± 0.08 in length and 1.8 µm ± 0.04 in width (inferred from TEM sections), had two layers of 14-17 coils of polar filament and a robust manubrium of the filament. No developmental stages were observed in xenoma. Phylogenetic analysis of the small subunit rRNA showed closest similarity with Kabatana spp. (88.4%), clustering the microsporidium together in a sister group with K. takedai and Kabatana sp. (JI-2008)/K. newberryi clade. While recognized Kabatana members show ovoid, rounded to pyriform spore, lack of sporophorous vesicle or xenoma, 3-10 coils of polar filament in 1-2 rows and are localized within cytoplasm of trunk muscle, the new species is markedly pyriform, xenoma forming, with many filament coils in 2 rows and parasitizing smooth intestinal muscle. Since morphological features were not typically congruent with any of Kabatana spp. so far described and molecular clustering indicated paraphyletic position within Kabatana clade, we suggest assigning described species to collective group Microsporidia, as Microsporidium milevae sp. nov., until more evidence permits potential formation of the new genus.

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Pleistophora mirandellae Vaney & Conte, 1901, a microsporidian parasite in cyprinid fish of rivers in Herault: taxonomy and histopathology

Cited by 24 publications

References 5 publications

Gonadal impairment in roach Rutilus rutilus from Finnish coastal areas of the northern Baltic Sea

Gonadal impairment in roach Rutilus rutilus from Finnish coastal areas of the northern Baltic Sea

Occurrence of microsporidians Glugea hertwigi and Pleistophora ladogensis, in smelt Osmerus eperlanus from two German rivers, North Sea coast

A new xenoma-forming microsporidium infecting intestinal tract of Atlantic bluefin tuna (Thunnus thynnus)

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