The phylogenetic position of Ovavesicula popilliae (Microsporidia) and its relationship to Antonospora and Paranosema based on small subunit rDNA analysis

Vossbrinck, Charles R.; Andreadis, Theodore G.

doi:10.1016/j.jip.2007.05.008

Cited by 15 publications

(11 citation statements)

References 15 publications

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“…Inside this clade the novel sequence formed a dichotomy with L. patagonica. General tree topologies produced by all three algorithms were similar and in good accord with previously published data (Fokin et al, 2008;Vossbrinck and Andreadis, 2007;Vossbrinck and Debrunner-Vossbrinck, 2005). The Amblyospora spp.…”

Section: Ssu Rdna-based Phylogenetic Relationshipssupporting

confidence: 87%

“…for comparison with the ''aquatic outgroup" (Vossbrinck et al, 2004). We also included the sequence of Ovavesicula popillae, known to be related to the Paranosema clade (Vossbrinck and Andreadis, 2007), to better clarify the Paranosema clade position, which remains poorly resolved at this time (Sokolova et al, 2007(Sokolova et al, , 2008. Finally, we added the sequence of the very recently described Euplotespora binucleata (Fokin et al, 2008), the sole available SSU rDNA sequence from a microsporidium infecting ciliates, to confirm its clustering with E. schubergi, which was claimed by Fokin et al (2008).…”

Section: Methodsmentioning

confidence: 99%

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Morphology and taxonomy of the microsporidium Liebermannia covasacrae n. sp. from the grasshopper Covasacris pallidinota (Orthoptera, Acrididae)

Sokolova

Lange

Mariottini

et al. 2009

Journal of Invertebrate Pathology

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Section: Ssu Rdna-based Phylogenetic Relationshipssupporting

confidence: 87%

Section: Methodsmentioning

confidence: 99%

Morphology and taxonomy of the microsporidium Liebermannia covasacrae n. sp. from the grasshopper Covasacris pallidinota (Orthoptera, Acrididae)

Sokolova

Lange

Mariottini

et al. 2009

Journal of Invertebrate Pathology

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“…This rDNA sequence is most closely related to rDNA sequence from Ovavesicula popilliae, which is a beetle-infecting microsporidian species [17], although the two sequences are fairly divergent (see phylogenetic comparison in Figure 2). Because of this divergence and the fact that the putative microsporidian species infecting C.…”

Section: Resultsmentioning

confidence: 92%

Microsporidia Are Natural Intracellular Parasites of the Nematode Caenorhabditis elegans

et al. 2008

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For decades the soil nematode Caenorhabditis elegans has been an important model system for biology, but little is known about its natural ecology. Recently, C. elegans has become the focus of studies of innate immunity and several pathogens have been shown to cause lethal intestinal infections in C. elegans. However none of these pathogens has been shown to invade nematode intestinal cells, and no pathogen has been isolated from wild-caught C. elegans. Here we describe an intracellular pathogen isolated from wild-caught C. elegans that we show is a new species of microsporidia. Microsporidia comprise a large class of eukaryotic intracellular parasites that are medically and agriculturally important, but poorly understood. We show that microsporidian infection of the C. elegans intestine proceeds through distinct stages and is transmitted horizontally. Disruption of a conserved cytoskeletal structure in the intestine called the terminal web correlates with the release of microsporidian spores from infected cells, and appears to be part of a novel mechanism by which intracellular pathogens exit from infected cells. Unlike in bacterial intestinal infections, the p38 MAPK and insulin/insulin-like growth factor (IGF) signaling pathways do not appear to play substantial roles in resistance to microsporidian infection in C. elegans. We found microsporidia in multiple wild-caught isolates of Caenorhabditis nematodes from diverse geographic locations. These results indicate that microsporidia are common parasites of C. elegans in the wild. In addition, the interaction between C. elegans and its natural microsporidian parasites provides a system in which to dissect intracellular intestinal infection in vivo and insight into the diversity of pathogenic mechanisms used by intracellular microbes.

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“…Autoradiographs were read manually and entered into a MacIntosh Computer. Sequencing primers were those as previously reported (Baker et al, 1995(Baker et al, , 1998Vossbrinck and Andreadis, 2007). Sequences were aligned based on ssrRNA secondary structure by SequentiX corporation http://www.…”

Section: Methodsmentioning

confidence: 99%

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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The phylogenetic position of Ovavesicula popilliae (Microsporidia) and its relationship to Antonospora and Paranosema based on small subunit rDNA analysis

Cited by 15 publications

References 15 publications

Morphology and taxonomy of the microsporidium Liebermannia covasacrae n. sp. from the grasshopper Covasacris pallidinota (Orthoptera, Acrididae)

Morphology and taxonomy of the microsporidium Liebermannia covasacrae n. sp. from the grasshopper Covasacris pallidinota (Orthoptera, Acrididae)

Microsporidia Are Natural Intracellular Parasites of the Nematode Caenorhabditis elegans

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

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