Artículo

Estamos trabajando para conseguir la versión final de este artículo
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The newest order in Chytridiomycota, Rhizophydiales, shows remarkable genetic divergence and zoospore ultrastructural diversity. From submersed mud from a marsh near an oligotrophic lake in the Patagonia region of Argentina, we isolated a previously undescribed chytrid in Rhizophydiales with unique 28S rRNA and ITS1-5.8S-ITS2 sequences and a distinctive zoospore and thallus. In a combined LSU + 5.8S phylogeny of representative taxa in the order, the nearest relative to this new species is Rhizophlyctis harderi, and their zoospores share several similar character states. A new genus is erected for this chytrid, the first to be brought into pure culture from this region. © 2008 by The Mycological Society of America.

Registro:

Documento: Artículo
Título:Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales
Autor:Letcher, P.M.; Powell, M.J.; Viusent, M.C.
Filiación:Dept. of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, United States
Departamento de Biodiversidad y Biologia Experimental, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
Palabras clave:28S rDNA; Chytrid; ITS rDNA; Phylogeny; Zoospore; divergence; fungus; lake; new species; oligotrophic environment; phylogeny; species diversity; spore; ultrastructure; Argentina; Patagonia; South America; Chytridiomycota; Fungi; Rhizophlyctis harderi; fungal DNA; ribosome DNA; article; Chytridiomycetes; classification; cytology; fungus spore; genetics; Liquidambar; microbiology; molecular genetics; phylogeny; pine; pollen; transmission electron microscopy; ultrastructure; Chytridiomycota; DNA, Fungal; DNA, Ribosomal; Liquidambar; Microscopy, Electron, Transmission; Molecular Sequence Data; Phylogeny; Pinus; Pollen; Soil Microbiology; Spores, Fungal
Año:2008
Volumen:100
Número:2
Página de inicio:325
Página de fin:334
DOI: http://dx.doi.org/10.3852/mycologia.100.2.325
Título revista:Mycologia
Título revista abreviado:Mycologia
ISSN:00275514
CODEN:MYCOA
CAS:DNA, Fungal; DNA, Ribosomal
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v100_n2_p325_Letcher

Referencias:

  • Gleason, F.H., Letcher, P.M., McGee, P.A., Some Chytridiomycota in soil recover from drying and high temperatures (2004) Mycol Res, 108, pp. 583-589
  • Gleason, F.H., Letcher, P.M., McGee, P.A., Midgley, D.J., Letcher, P.M., McGee, P.A., Can soil Chytridiomycota survive and grow in different osmotic potentials? (2006) Mycol Res, 110, pp. 869-875
  • Huelsenbeck, J.P., Ronquist, F., MrBayes: Bayesian inference of phylogenetic trees (2001) Bioinformatics, 17, pp. 754-755
  • James, T.Y., Porter, D., Leander, C.A., Vilgalys, R., Longcore, J.E., Molecular phylogenetics of the Chytridiomycota supports the utility of ultrastructural data in chytrid systematics (2000) Can J Bot, 78, pp. 336-350
  • James, T.Y., Porter, D., Leander, C.A., Vilgalys, R., Longcore, J.E., Letcher, P.M., Longcore, J.E., Vilgalys, R., A molecular phylogeny of the flagellated fungi (Chytridiomycota) and description of a new phylum (Blastocladiomycota) (2006) Mycologia, 98, pp. 860-871
  • Johnson, T.W., Miller, C.E., Two unusual chytridiaceous fungi (1974) Mycologia, 66, pp. 859-867
  • Karling, J.S., (1977) Chytridiomycetarum Iconographia, , Vaduz: J. Cramer. 414 p
  • Letcher, P.M., McGee, P.A., Powell, M.J., Distribution and diversity of zoosporic fungi from soils of four vegetation types in New South Wales, Australia (2004) Can J Bot, 82, pp. 1490-1500
  • Letcher, P.M., McGee, P.A., Powell, M.J., Powell, M.J., Kappamyces, a new genus in the Chytridiales (Chytridiomycota) (2005) Nova Hedwigia, 80, pp. 115-133
  • Letcher, P.M., McGee, P.A., Powell, M.J., Powell, M.J., Chambers, J.G., Holznagel, W.E., Phylogenetic relationships among Rhizophydium isolates from North America and Australia (2004) Mycologia, 96, pp. 1339-1351
  • Letcher, P.M., McGee, P.A., Powell, M.J., Powell, M.J., Chambers, J.G., Holznagel, W.E., Churchill, P.F., Chambers, J.G., Ultra-structural and molecular phylogenetic delineation of a new order, the Rhizophydiales (Chytridiomycota) (2006) Mycol Res, 110, pp. 898-915
  • Letcher, P.M., McGee, P.A., Powell, M.J., Powell, M.J., Chambers, J.G., Holznagel, W.E., Churchill, P.F., Wakefield, W.S., Ultrastructural and molecular analyses of Rhizophydiales (Chytridiomycota) isolates from North America and Argentina (2008) Mycol Res, 112. , In press
  • Longcore, J.E., Zoosporic fungi from Australian and New Zealand tree-canopy detritus (2005) Australian J Bot, 53, pp. 259-272
  • Powell, M.J., Looking at mycology with a Janus face: A glimpse at Chytridiomycetes active in the environment (1993) Mycologia, 85, pp. 1-20
  • Powell, M.J., Roychoudhury, S., Ultrastructural organization of Rhizophlyctis harderi zoospores and redefinition of the type I microbody-lipid globule complex (1992) Can J Bot, 70, pp. 750-761
  • Roychoudhury, S., Powell, M.J., Precise flagellar configuration of the Rhizophlyctis harderi zoospore (1992) Can J Bot, 70, pp. 762-771
  • Sikes DS, Lewis PO. 2001. Beta software, version 1. PAUPRat: PAUP* implementation of the parsimony ratchet. Distributed by the authors. Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT; Swofford DL. 2002. PAUP*. Phylogenetic Analysis Using Parsimony (*and other methods), 4.0b4a. Sunderland, Massachusetts: Sinauer Associates; White, T.J., Bruns, T., Lee, S., Taylor, J.W., Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics (1990) PCR Protocols: A guide to methods and applications, pp. 315-322. , Innis MA, Gelfand DH, Sninsky JJ, White TJ, eds, New York: Academic Press. p

Citas:

---------- APA ----------
Letcher, P.M., Powell, M.J. & Viusent, M.C. (2008) . Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales. Mycologia, 100(2), 325-334.
http://dx.doi.org/10.3852/mycologia.100.2.325
---------- CHICAGO ----------
Letcher, P.M., Powell, M.J., Viusent, M.C. "Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales" . Mycologia 100, no. 2 (2008) : 325-334.
http://dx.doi.org/10.3852/mycologia.100.2.325
---------- MLA ----------
Letcher, P.M., Powell, M.J., Viusent, M.C. "Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales" . Mycologia, vol. 100, no. 2, 2008, pp. 325-334.
http://dx.doi.org/10.3852/mycologia.100.2.325
---------- VANCOUVER ----------
Letcher, P.M., Powell, M.J., Viusent, M.C. Rediscovery of an unusual chytridiaceous fungus new to the order Rhizophydiales. Mycologia. 2008;100(2):325-334.
http://dx.doi.org/10.3852/mycologia.100.2.325