Evidence supporting the occurrence of a new species of endophyte in some South American grasses

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 en...

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Autores principales:	Cafaro, Matías José, Saidman, Beatriz Ofelia
Publicado:	1999
Materias:	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
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai http://hdl.handle.net/20.500.12110/paper_00275514_v91_n2_p315_Cabrai
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00275514_v91_n2_p315_Cabrai
record_format	dspace
spelling	paper:paper_00275514_v91_n2_p315_Cabrai2023-06-08T14:54:16Z Evidence supporting the occurrence of a new species of endophyte in some South American grasses Cafaro, Matías José Saidman, Beatriz Ofelia 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 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. Fil:Cafaro, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Saidman, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai http://hdl.handle.net/20.500.12110/paper_00275514_v91_n2_p315_Cabrai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Cafaro, Matías José Saidman, Beatriz Ofelia Evidence supporting the occurrence of a new species of endophyte in some South American grasses
topic_facet	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
description	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.
author	Cafaro, Matías José Saidman, Beatriz Ofelia
author_facet	Cafaro, Matías José Saidman, Beatriz Ofelia
author_sort	Cafaro, Matías José
title	Evidence supporting the occurrence of a new species of endophyte in some South American grasses
title_short	Evidence supporting the occurrence of a new species of endophyte in some South American grasses
title_full	Evidence supporting the occurrence of a new species of endophyte in some South American grasses
title_fullStr	Evidence supporting the occurrence of a new species of endophyte in some South American grasses
title_full_unstemmed	Evidence supporting the occurrence of a new species of endophyte in some South American grasses
title_sort	evidence supporting the occurrence of a new species of endophyte in some south american grasses
publishDate	1999
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v91_n2_p315_Cabrai http://hdl.handle.net/20.500.12110/paper_00275514_v91_n2_p315_Cabrai
work_keys_str_mv	AT cafaromatiasjose evidencesupportingtheoccurrenceofanewspeciesofendophyteinsomesouthamericangrasses AT saidmanbeatrizofelia evidencesupportingtheoccurrenceofanewspeciesofendophyteinsomesouthamericangrasses
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Evidence supporting the occurrence of a new species of endophyte in some South American grasses

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