Flabelliforma montana (Phylum Microsporidia) from Phlebotomus ariasi (Diptera, Psychodidae): ultrastructural observations and phylogenetic relationships

Canning, Elizabeth U.; Curry, Alan; Cheney, Sarah A.; Lafranchi-Tristem, Nathalie J.; Ebert, Dieter; Rifardt, D.; Killick‐Kendrick, M.; Killick‐Kendrick, R.

doi:10.1078/0932-4739-00822

Cited by 10 publications

(13 citation statements)

References 22 publications

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“…magnivora continues to be problematic and may require revision. Canning et al (2001) first reported that this microsporidium should not be placed within the genus Flabelliforma, and our analysis concurs by showing a 28% nucleotide difference (based on our alignment) from the type species, F. montana. Morris and Freeman (2010) suggested placing F. magnavora in the newly erected genus Neoflabelliforma along with the type species N. aurentiae based on developmental and phylogenetic similarities, but did note differences in spore morphology (size, shape and length of the polar filament).…”

Section: Resultssupporting

confidence: 85%

“…The placement of F. magnivora within the genus Flabelliforma has been questioned. Based on molecular data, Canning et al (2001) showed that F. magnivora was not closely related to the type species, Flabelliforma montana a parasite of the sandfly Phlebotomus ariasi, and suggested that the former species should not be placed in the genus. Morris and Freeman (2010) most recently reported ultrastructural and phylogenetic similarities between F. magnivora and a microsporidium, Neoflabelliforma aurantiae n. gen., n. sp.…”

Section: Introductionmentioning

confidence: 97%

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Phylogenetic position of Octosporea muscaedomesticae (Microsporidia) and its relationship to Octosporea bayeri based on small subunit rDNA analysis

Vossbrinck

Baker

Andreadis

2010

Journal of Invertebrate Pathology

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 97%

Phylogenetic position of Octosporea muscaedomesticae (Microsporidia) and its relationship to Octosporea bayeri based on small subunit rDNA analysis

Vossbrinck

Baker

Andreadis

2010

Journal of Invertebrate Pathology

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“…Our study revealed 22 novel microsporidian species and only four described species: O. operophterae (host: beetle) (Canning et al. , ), S. perivermis (host: marine nematode) (Ardila‐Garcia and Fast ), O. muscadomesticae (host: fly) (Vossbrinck et al. ), and N. aurantiae (host: Myxosporidia and Oligochaeta) (Morris and Freeman ).…”

Section: Discussionmentioning

confidence: 89%

“…) and O. operopterae (host: moth) (Canning et al. , ), respectively. UBN_Seattle3 showed high similarity (96% identity) to a named microsporidium, the hyperparasitic N. aurantiae (hosts: Myxozoa and Oligacheata) (Morris and Freeman ).…”

Section: Resultsmentioning

confidence: 99%

Microsporidian Diversity in Soil, Sand, and Compost of the Pacific Northwest

Ardila-Garcia

Raghuram

Sihota

et al. 2013

J Eukaryotic Microbiology

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Microsporidia are intracellular parasites considered to be ubiquitous in the environment. Yet the true extent of their diversity in soils, sand, and compost remains unclear. We examined microsporidian diversity found in the common urban environments of soil, sand, and compost. We retrieved 22 novel microsporidian sequences and only four from described species. Their distribution was generally restricted to a single site and sample type. Surprisingly, one novel microsporidian showed a wide distribution, and high prevalence, as it was detected in five different compost samples and in soil samples collected over 200 km apart. These results suggest that the majority of Microsporidia appear to have a narrow distribution. Our phylogenetic analysis indicated that the Microsporidia detected in this study include representatives from four of the five major microsporidian groups. Furthermore, the addition of our new sequences calls into question the cohesiveness of microsporidian clade II. These results highlight the importance of increasing our knowledge of microsporidian diversity to better understand the phylogenetic relationships and evolutionary history of this important group of emerging parasites.

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“…Despite vast data on small subunit (SSU) ribosomal gene (rDNA) sequences of various microsporidia (Baker et al 1995;Canning et al 2001Canning et al , 2002Hester et al 2000;Morris, Terry, and Adams 2005), no molecular data are available yet for establishing phylogenetic relationships of those infecting ciliates.…”

mentioning

confidence: 99%

Euplotespora binucleata n. gen., n. sp. (Protozoa: Microsporidia), a Parasite Infecting the Hypotrichous Ciliate Euplotes woodruffi, with Observations on Microsporidian Infections in Ciliophora

Fokin

Giuseppe

Erra

et al. 2008

J Eukaryotic Microbiology

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A new microsporidian species, Euplotespora binucleata n. gen., n. sp., from the brackish-water ciliate Euplotes woodruffi is described and defined on the basis of life history characteristics, light and electron microscopic features, and small subunit (SSU) ribosomal DNA (rDNA) sequencing. The life cycle of E. binucleata n. sp. probably has rather short merogonic and relatively long sporogonic phases. Some uninuclear meronts and sporonts, along with diplokaryotic sporoblasts and spores, were found in experimentally infected host cells. Such a peculiar life cycle has been induced experimentally in Euplotes eurystomus and constitutively microsporidian-free stocks of E. woodruffi. Spores of E. binucleata n. sp. are monomorphic, ovoid-cylindrical in shape, 3.44+/-0.17 x 1.65+/-0.22 microm in size, and characterized by a diplokaryotic condition and a large posterior vacuole. The polar tube is isofilar, 4.5-5.5 microm in length when ejected, and lacking a distinctive coiled region (half-coiled). The polaroplast is divided into two regions: the anterior part has a few lamellae close to the anchoring disc; and the posterior part is a rounded body (sack), about one-quarter of the spore length. Spores do not appear to cluster together as a group. Each spore is surrounded by a sporophorous membrane closely adjacent to the exospore layer. A phylogenetic analysis of SSU rDNA sequences by different methods placed E. binucleata n. sp. in a clade with representatives of the microsporidian genera Cystosporogenes and Vittaforma. Observations of microsporidia in several other ciliates are discussed in view of the microsporidian infection frequency in the phylum Ciliophora.

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Flabelliforma montana (Phylum Microsporidia) from Phlebotomus ariasi (Diptera, Psychodidae): ultrastructural observations and phylogenetic relationships

Cited by 10 publications

References 22 publications

Phylogenetic position of Octosporea muscaedomesticae (Microsporidia) and its relationship to Octosporea bayeri based on small subunit rDNA analysis

Phylogenetic position of Octosporea muscaedomesticae (Microsporidia) and its relationship to Octosporea bayeri based on small subunit rDNA analysis

Microsporidian Diversity in Soil, Sand, and Compost of the Pacific Northwest

Euplotespora binucleata n. gen., n. sp. (Protozoa: Microsporidia), a Parasite Infecting the Hypotrichous Ciliate Euplotes woodruffi, with Observations on Microsporidian Infections in Ciliophora

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