| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Redescription and phylogenetic analyses of Durchoniella spp. (Ciliophora, Astomatida) associated with the polychaete Cirriformia tentaculata (Montagu, 1808)
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| Autores: |
Sauvadet, Anne-laure
Lynn, Denis H.
Roussel, Erwan
Le Panse, Sophie
Bigeard, Estelle
Schrevel, Joseph
Guillou, Laure
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| Data: |
2017-10
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| Ano: |
2017
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| Palavras-chave: |
Astomatida
Ciliophora
Cirratulidae
Endocytoplasmic bacteria
Microscopy
Molecular phylogeny
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| Resumo: |
Microscopic and phylogenetic analyses were performed on endocommensal astome ciliates retrieved from the middle intestine of a marine cirratulid polychaete, Cirriformia tentaculata, collected in the bay of Roscoff (English Channel, Northwest French coast) and on the Southwest English coast. Three morphotypes of the astome genus Durchoniella were identified, two corresponding to described species (the type species Durchoniella brasili (Léger and Duboscq, 1904) de Puytorac, 1954 and Durchoniella legeriduboscqui de Puytorac, 1954) while a third morphotype remains undescribed. Their small subunit (SSU) rRNA gene sequences showed at least 97.2% identity and phylogenetic analyses grouped them at the base of the subclass Scuticociliatia (Oligohymenophorea), as a sister lineage to all astomes from terrestrial oligochaete annelids. Ultrastructural examination by transmission electron microscopy and fluorescence in situ hybridization analyses revealed the presence of endocytoplasmic cocci and rod-shaped bacteria surrounded by a very thin membrane. These endocytoplasmic bacteria may play a role in the association between endocommensal astome ciliates and cirratulid polychaetes inhabiting in anoxic coastal sediments.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00392/50312/50990.pdf
DOI:10.1016/j.ejop.2017.06.007
http://archimer.ifremer.fr/doc/00392/50312/
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| Editor: |
Elsevier Gmbh, Urban & Fischer Verlag
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| Formato: |
application/pdf
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| Fonte: |
European Journal Of Protistology (0932-4739) (Elsevier Gmbh, Urban & Fischer Verlag), 2017-10 , Vol. 61 , N. Part A , P. 265-277
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| Direitos: |
2017 Elsevier GmbH. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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