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Abstract:

Chytridium olla A. Braun, the first described chytrid and an obligate algal parasite, is the type for the genus and thus the foundation of family Chytridiaceae, order Chytridiales, class Chytridiomycetes and phylum Chytridiomycota. Chytridium olla was isolated in coculture with its host, Oedogonium capilliforme. DNA was extracted from the coculture, and 18S, 28S and ITS1-5.8S-ITS2 rDNA were amplified with universal fungal primers. Free swimming zoospores and zoospores in mature sporangia were examined with electron microscopy. Molecular analyses placed C. olla in a clade in Chytridiales with isolates of Chytridium lagenaria and Phlyctochytrium planicorne. Ultrastructural analysis revealed C. olla to have a Group II-type zoospore, previously described for Chytridium lagenaria and Phlyctochytrium planicorne. On the basis of zoospore ultrastructure, family Chytridiaceae is emended to include the type of Chytridium and other species with a Group II-type zoospore, and the new family Chytriomycetaceae is delineated to include members of Chytridiales with a Group I-type zoospore. © 2011 by The Mycological Society of America.

Registro:

Documento: Artículo
Título:Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales
Autor:Vélez, C.G.; Letcher, P.M.; Schultz, S.; Powell, M.J.; Churchill, P.F.
Filiación:PRHIDEB-CONICET, Departamento de Biodiversidad y Biologia Experimental, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, United States
Palabras clave:18S rDNA; 28S rDNA; Chytrid; Chytridiales; ITS rDNA; Phylogeny; Systematics; fungal DNA; RNA 18S; RNA 28S; RNA 5.8S; electron microscopy; fungus; molecular analysis; new genus; new species; phylogenetics; phylogeny; spore; taxonomy; ultrastructure; Argentina; article; chemistry; Chytridiomycetes; genetics; isolation and purification; molecular genetics; nucleotide sequence; phylogeny; polymerase chain reaction; transmission electron microscopy; ultrastructure; Argentina; Chytridiomycota; DNA, Fungal; Microscopy, Electron, Transmission; Molecular Sequence Data; Phylogeny; Polymerase Chain Reaction; RNA, Ribosomal, 18S; RNA, Ribosomal, 28S; RNA, Ribosomal, 5.8S; algae; Chytridiaceae; Chytridiales; Chytridiomycota; Chytridium; Chytridium lagenaria; Oedogonium capilliforme; Olla; Phlyctochytrium planicorne
Año:2011
Volumen:103
Número:1
Página de inicio:118
Página de fin:130
DOI: http://dx.doi.org/10.3852/10-001
Título revista:Mycologia
Título revista abreviado:Mycologia
ISSN:00275514
CODEN:MYCOA
CAS:DNA, Fungal; RNA, Ribosomal, 18S; RNA, Ribosomal, 28S; RNA, Ribosomal, 5.8S
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v103_n1_p118_Velez

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Citas:

---------- APA ----------
Vélez, C.G., Letcher, P.M., Schultz, S., Powell, M.J. & Churchill, P.F. (2011) . Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales. Mycologia, 103(1), 118-130.
http://dx.doi.org/10.3852/10-001
---------- CHICAGO ----------
Vélez, C.G., Letcher, P.M., Schultz, S., Powell, M.J., Churchill, P.F. "Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales" . Mycologia 103, no. 1 (2011) : 118-130.
http://dx.doi.org/10.3852/10-001
---------- MLA ----------
Vélez, C.G., Letcher, P.M., Schultz, S., Powell, M.J., Churchill, P.F. "Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales" . Mycologia, vol. 103, no. 1, 2011, pp. 118-130.
http://dx.doi.org/10.3852/10-001
---------- VANCOUVER ----------
Vélez, C.G., Letcher, P.M., Schultz, S., Powell, M.J., Churchill, P.F. Molecular phylogenetic and zoospore ultrastructural analyses of Chytridium olla establish the limits of a monophyletic Chytridiales. Mycologia. 2011;103(1):118-130.
http://dx.doi.org/10.3852/10-001