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The Development, Ultrastructural Cytology, and Molecular Phylogeny of the Basal Oomycete Eurychasma dicksonii, Infecting the Filamentous Phaeophyte Algae Ectocarpus siliculosus and Pylaiella littoralis

The Development, Ultrastructural Cytology, and Molecular Phylogeny of the Basal Oomycete Eurychasma dicksonii, Infecting the Filamentous Phaeophyte Algae Ectocarpus siliculosus and Pylaiella littoralis

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SEKIMOTO, Satoshi, Gordon W. BEAKES, Claire M. M. GACHON, Dieter G. MÜLLER, Frithjof C. KÜPPER, Daiske HONDA, 2008. The Development, Ultrastructural Cytology, and Molecular Phylogeny of the Basal Oomycete Eurychasma dicksonii, Infecting the Filamentous Phaeophyte Algae Ectocarpus siliculosus and Pylaiella littoralis. In: Protist. 159(2), pp. 299-318. ISSN 1434-4610. eISSN 1618-0941

@article{Sekimoto2008Devel-32244, title={The Development, Ultrastructural Cytology, and Molecular Phylogeny of the Basal Oomycete Eurychasma dicksonii, Infecting the Filamentous Phaeophyte Algae Ectocarpus siliculosus and Pylaiella littoralis}, year={2008}, doi={10.1016/j.protis.2007.11.004}, number={2}, volume={159}, issn={1434-4610}, journal={Protist}, pages={299--318}, author={Sekimoto, Satoshi and Beakes, Gordon W. and Gachon, Claire M. M. and Müller, Dieter G. and Küpper, Frithjof C. and Honda, Daiske} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/32244"> <dc:creator>Müller, Dieter G.</dc:creator> <dc:creator>Gachon, Claire M. M.</dc:creator> <dcterms:title>The Development, Ultrastructural Cytology, and Molecular Phylogeny of the Basal Oomycete Eurychasma dicksonii, Infecting the Filamentous Phaeophyte Algae Ectocarpus siliculosus and Pylaiella littoralis</dcterms:title> <dc:creator>Honda, Daiske</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-25T10:50:06Z</dcterms:available> <dc:language>eng</dc:language> <dcterms:abstract xml:lang="eng">The morphological development, ultrastructural cytology, and molecular phylogeny of Eurychasma dicksonii, a holocarpic oomycete endoparasite of phaeophyte algae, were investigated in laboratory cultures. Infection of the host algae by E. dicksonii is initiated by an adhesorium-like infection apparatus. First non-walled, the parasite cell developed a cell wall and numerous large vacuoles once it had almost completely filled the infected host cell (foamy stage). Large-scale cytoplasmic changes led to the differentiation of a sporangium with peripheral primary cysts. Secondary zoospores appeared to be liberated from the primary cysts in the internal space left after the peripheral spores differentiated. These zoospores contained two phases of peripheral vesicles, most likely homologous to the dorsal encystment vesicles and K-bodies observed in other oomycetes. Following zoospore liberation the walls of the empty cyst were left behind, forming the so-called net sporangium, a distinctive morphological feature of this genus. The morphological and ultrastructural features of Eurychasma were discussed in relation to similarities with other oomycetes. Both SSU rRNA and COII trees pointed to a basal position of Eurychasma among the Oomycetes. The cox2 sequences also revealed that the UGA codon encoded tryptophan, constituting the first report of stop codon reassignment in an oomycete mitochondrion.</dcterms:abstract> <dc:contributor>Sekimoto, Satoshi</dc:contributor> <dc:creator>Beakes, Gordon W.</dc:creator> <dc:creator>Küpper, Frithjof C.</dc:creator> <dc:contributor>Müller, Dieter G.</dc:contributor> <dc:creator>Sekimoto, Satoshi</dc:creator> <dc:contributor>Beakes, Gordon W.</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/32244"/> <dc:contributor>Küpper, Frithjof C.</dc:contributor> <dc:contributor>Gachon, Claire M. M.</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-25T10:50:06Z</dc:date> <dcterms:issued>2008</dcterms:issued> <dc:contributor>Honda, Daiske</dc:contributor> </rdf:Description> </rdf:RDF>

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