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Abstract:

Endophytes of several South American grasses were examined. The taxonomic status of endophytes in Festuca argentina, F. hieronymi, Poa huecu, and an unidentified species of Poa is evaluated. On the basis of morphological features, and rDNA and protease gene sequence data, it is proposed that this endophyte is different from several other endophytes examined from North American, South American, and European species of Festuca and Poa. These endophytes, believed responsible for causing the 'tembladera' or 'huecu' toxicosis in animals, have also been reported to produce unique toxins. Isozyme analysis supports the distinctness of these endophytes but also demonstrates variability in populations with respect to gene polymorphisms. Taking all the data into consideration, we propose to establish a new endophyte species Neotyphodium tembladerae which includes endophytes found in multiple grass species. We suggest the use of a phylogenetic species concept to define species of Neotyphodium.

Registro:

Documento: Artículo
Título:Evidence supporting the occurrence of a new species of endophyte in some South American grasses
Autor:Cabrai, D.; Cafaro, M.J.; Saidman, B.; Lugo, M.; Reddy, P.V.; White Jr., J.F.
Filiación:Depto. de Ciencias Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Department of Plant Pathology, Cook College-Rutgers University, New Brunswick, NJ 80901, United States
Palabras clave:Ascomycetes; Clavicipitaceae; Molecular systematics; Protease; endophyte; enzyme analysis; Europe; genetic polymorphism; isoenzyme; morphology; North America; proteinase; ribosomal DNA; South America; taxonomy; toxicity; toxin; Festuca argentina; Festuca hieronymi; Neotyphodium; Poa hueco
Año:1999
Volumen:91
Número:2
Página de inicio:315
Página de fin:325
Título revista:Mycologia
Título revista abreviado:Mycologia
ISSN:00275514
CODEN:MYCOA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai

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Citas:

---------- APA ----------
Cabrai, D., Cafaro, M.J., Saidman, B., Lugo, M., Reddy, P.V. & White Jr., J.F. (1999) . Evidence supporting the occurrence of a new species of endophyte in some South American grasses. Mycologia, 91(2), 315-325.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai [ ]
---------- CHICAGO ----------
Cabrai, D., Cafaro, M.J., Saidman, B., Lugo, M., Reddy, P.V., White Jr., J.F. "Evidence supporting the occurrence of a new species of endophyte in some South American grasses" . Mycologia 91, no. 2 (1999) : 315-325.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai [ ]
---------- MLA ----------
Cabrai, D., Cafaro, M.J., Saidman, B., Lugo, M., Reddy, P.V., White Jr., J.F. "Evidence supporting the occurrence of a new species of endophyte in some South American grasses" . Mycologia, vol. 91, no. 2, 1999, pp. 315-325.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai [ ]
---------- VANCOUVER ----------
Cabrai, D., Cafaro, M.J., Saidman, B., Lugo, M., Reddy, P.V., White Jr., J.F. Evidence supporting the occurrence of a new species of endophyte in some South American grasses. Mycologia. 1999;91(2):315-325.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai [ ]