Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds

Autores
Gundel, Pedro E.; Martínez Ghersa, María A.; Garibaldi, Lucas Alejandro; Ghersa, Claudio M.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Martínez Ghersa, María A. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.
Fil: Ghersa, Claudio M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Gundel, Pedro E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Fil: Martínez-Ghersa, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio Ecotono; Argentina.
Fil: Ghersa, Claudio M. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Neotyphodium endophyte fungi are vertically transmitted symbionts of cool-season grasses. The seed phase of the grass’ life cycle appears to be critical for the persistence of the fungus. Endophyte viability decreases faster than seed viability, but little is known of the effects of this endophyte on seed viability. The endophyte could affect seed viability through changes in water content. Here, we assessed the effects of the endophyte on seed viability, the differential survival of endophyte and seed, and the effects of infection on seed water content. Viability of endophyte-infected and noninfected seeds and endophyte were evaluated over a period of 729 d under 12 controlled environmental conditions. Seed viability was reduced by the infection at high temperature and high relative humidity, but not under other conditions. Moreover, endophyte viability decreased faster than seed viability only under high humidity or high temperature. Seed water content was not affected by endophyte presence. The proportion of viable infected seeds was mainly affected by the loss in endophyte viability and secondly by the differential survival of infected and noninfected seeds. Knowledge on the relative importance of these processes is critical to understand the factors affecting the efficiency of endophyte vertical transmission and the frequency of endophyte-infected plants.
Materia
Endophyte Infection
Seed Longevity,
Endophyte Longevity
Endophyte Transmission
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/3287
Acceder
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seedsGundel, Pedro E.Martínez Ghersa, María A.Garibaldi, Lucas AlejandroGhersa, Claudio M.Endophyte InfectionSeed Longevity,Endophyte LongevityEndophyte TransmissionFil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.Fil: Martínez Ghersa, María A. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.Fil: Garibaldi, Lucas Alejandro. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.Fil: Ghersa, Claudio M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.Fil: Gundel, Pedro E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Martínez-Ghersa, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Garibaldi, Lucas Alejandro. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio Ecotono; Argentina.Fil: Ghersa, Claudio M. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Neotyphodium endophyte fungi are vertically transmitted symbionts of cool-season grasses. The seed phase of the grass’ life cycle appears to be critical for the persistence of the fungus. Endophyte viability decreases faster than seed viability, but little is known of the effects of this endophyte on seed viability. The endophyte could affect seed viability through changes in water content. Here, we assessed the effects of the endophyte on seed viability, the differential survival of endophyte and seed, and the effects of infection on seed water content. Viability of endophyte-infected and noninfected seeds and endophyte were evaluated over a period of 729 d under 12 controlled environmental conditions. Seed viability was reduced by the infection at high temperature and high relative humidity, but not under other conditions. Moreover, endophyte viability decreased faster than seed viability only under high humidity or high temperature. Seed water content was not affected by endophyte presence. The proportion of viable infected seeds was mainly affected by the loss in endophyte viability and secondly by the differential survival of infected and noninfected seeds. Knowledge on the relative importance of these processes is critical to understand the factors affecting the efficiency of endophyte vertical transmission and the frequency of endophyte-infected plants.NRC Research Press2009-01-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfGundel, Pedro E., MartÍnez Ghersa, Alejandra., Garibaldi, Lucas A. & Ghersa, Claudio M. (2009) Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds. NRC Research Press; Botany; 87 (1); 88-960008-40261916-2804https://www.nrcresearchpress.com/doi/abs/10.1139/B08-119#.XY30zX__qUkhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/3287doi:10.1139/B08-119eng87Botanyinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-04T11:12:53Zoai:rid.unrn.edu.ar:20.500.12049/3287instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-04 11:12:54.054RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
title Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
spellingShingle Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
Gundel, Pedro E.
Endophyte Infection
Seed Longevity,
Endophyte Longevity
Endophyte Transmission
title_short Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
title_full Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
title_fullStr Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
title_full_unstemmed Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
title_sort Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds
dc.creator.none.fl_str_mv Gundel, Pedro E.
Martínez Ghersa, María A.
Garibaldi, Lucas Alejandro
Ghersa, Claudio M.
author Gundel, Pedro E.
author_facet Gundel, Pedro E.
Martínez Ghersa, María A.
Garibaldi, Lucas Alejandro
Ghersa, Claudio M.
author_role author
author2 Martínez Ghersa, María A.
Garibaldi, Lucas Alejandro
Ghersa, Claudio M.
author2_role author
author
author
dc.subject.none.fl_str_mv Endophyte Infection
Seed Longevity,
Endophyte Longevity
Endophyte Transmission
topic Endophyte Infection
Seed Longevity,
Endophyte Longevity
Endophyte Transmission
dc.description.none.fl_txt_mv Fil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Martínez Ghersa, María A. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.
Fil: Ghersa, Claudio M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
Fil: Gundel, Pedro E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Fil: Martínez-Ghersa, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio Ecotono; Argentina.
Fil: Ghersa, Claudio M. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Neotyphodium endophyte fungi are vertically transmitted symbionts of cool-season grasses. The seed phase of the grass’ life cycle appears to be critical for the persistence of the fungus. Endophyte viability decreases faster than seed viability, but little is known of the effects of this endophyte on seed viability. The endophyte could affect seed viability through changes in water content. Here, we assessed the effects of the endophyte on seed viability, the differential survival of endophyte and seed, and the effects of infection on seed water content. Viability of endophyte-infected and noninfected seeds and endophyte were evaluated over a period of 729 d under 12 controlled environmental conditions. Seed viability was reduced by the infection at high temperature and high relative humidity, but not under other conditions. Moreover, endophyte viability decreased faster than seed viability only under high humidity or high temperature. Seed water content was not affected by endophyte presence. The proportion of viable infected seeds was mainly affected by the loss in endophyte viability and secondly by the differential survival of infected and noninfected seeds. Knowledge on the relative importance of these processes is critical to understand the factors affecting the efficiency of endophyte vertical transmission and the frequency of endophyte-infected plants.
description Fil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Gundel, Pedro E., MartÍnez Ghersa, Alejandra., Garibaldi, Lucas A. & Ghersa, Claudio M. (2009) Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds. NRC Research Press; Botany; 87 (1); 88-96
0008-4026
1916-2804
https://www.nrcresearchpress.com/doi/abs/10.1139/B08-119#.XY30zX__qUk
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3287
doi:10.1139/B08-119
identifier_str_mv Gundel, Pedro E., MartÍnez Ghersa, Alejandra., Garibaldi, Lucas A. & Ghersa, Claudio M. (2009) Viability of Neotyphodium endophytic fungus and endophyte-infected and noninfected Lolium multiflorum seeds. NRC Research Press; Botany; 87 (1); 88-96
0008-4026
1916-2804
doi:10.1139/B08-119
url https://www.nrcresearchpress.com/doi/abs/10.1139/B08-119#.XY30zX__qUk
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3287
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 87
Botany
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv NRC Research Press
publisher.none.fl_str_mv NRC Research Press
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1842344114253725696
score 12.623145

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