Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection

Bromus setifolius Presl., a native perennial grass, is widely spread in the harsh environment of Patagonia, Argentina. This grass can be associated with Neotyphodium Glenn, Bacon et Hanlin endophytes which are related to aerial tissues of these plants and never show external signs of infection. Endo...

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Autores principales:	Novas, Maria Victoria, Gentile, Agustina, Cabral, Daniel
Publicado:	2003
Materias:	Bromus setifolius Diaspores Dry weight Emergence Leaf length Neotyphodium Seedlings emergence endophyte grass growth host-symbiont interaction mortality propagule seedling establishment Argentina Patagonia South America Bromus Poaceae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v198_n6_p421_Novas http://hdl.handle.net/20.500.12110/paper_03672530_v198_n6_p421_Novas
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03672530_v198_n6_p421_Novas
record_format	dspace
spelling	paper:paper_03672530_v198_n6_p421_Novas2023-06-08T15:36:04Z Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection Novas, Maria Victoria Gentile, Agustina Cabral, Daniel Bromus setifolius Diaspores Dry weight Emergence Leaf length Neotyphodium Seedlings emergence endophyte grass growth host-symbiont interaction mortality propagule seedling establishment Argentina Patagonia South America Bromus Bromus setifolius Neotyphodium Neotyphodium Poaceae Bromus setifolius Presl., a native perennial grass, is widely spread in the harsh environment of Patagonia, Argentina. This grass can be associated with Neotyphodium Glenn, Bacon et Hanlin endophytes which are related to aerial tissues of these plants and never show external signs of infection. Endophyte presence of certain grasses improves abiotic and biotic stress resistance, productivity or reproduction in their hosts. To compare and contrast natural populations of B. setifolius differing in endophyte infection diaspore weight of seven populations was registered. In addition, emergence and growth parameters of seedlings, dry weight, leaf length and mortality rate were measured. For this purpose, two independents assays were conducted under controlled environmental conditions, using an infected (E+) and an uninfected (E-) population in each one. Most of the analysed parameters differed between E+ and E- populations, being significantly greater in E+ populations. Populations with percentage of endophyte infection between 0% and 100% presented intermediate mean diaspore weight. These results could suggest an adaptive advantage of infected plants as a consequence of endophyte presence. Fil:Novas, M.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gentile, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cabral, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v198_n6_p421_Novas http://hdl.handle.net/20.500.12110/paper_03672530_v198_n6_p421_Novas
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Bromus setifolius Diaspores Dry weight Emergence Leaf length Neotyphodium Seedlings emergence endophyte grass growth host-symbiont interaction mortality propagule seedling establishment Argentina Patagonia South America Bromus Bromus setifolius Neotyphodium Neotyphodium Poaceae
spellingShingle	Bromus setifolius Diaspores Dry weight Emergence Leaf length Neotyphodium Seedlings emergence endophyte grass growth host-symbiont interaction mortality propagule seedling establishment Argentina Patagonia South America Bromus Bromus setifolius Neotyphodium Neotyphodium Poaceae Novas, Maria Victoria Gentile, Agustina Cabral, Daniel Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
topic_facet	Bromus setifolius Diaspores Dry weight Emergence Leaf length Neotyphodium Seedlings emergence endophyte grass growth host-symbiont interaction mortality propagule seedling establishment Argentina Patagonia South America Bromus Bromus setifolius Neotyphodium Neotyphodium Poaceae
description	Bromus setifolius Presl., a native perennial grass, is widely spread in the harsh environment of Patagonia, Argentina. This grass can be associated with Neotyphodium Glenn, Bacon et Hanlin endophytes which are related to aerial tissues of these plants and never show external signs of infection. Endophyte presence of certain grasses improves abiotic and biotic stress resistance, productivity or reproduction in their hosts. To compare and contrast natural populations of B. setifolius differing in endophyte infection diaspore weight of seven populations was registered. In addition, emergence and growth parameters of seedlings, dry weight, leaf length and mortality rate were measured. For this purpose, two independents assays were conducted under controlled environmental conditions, using an infected (E+) and an uninfected (E-) population in each one. Most of the analysed parameters differed between E+ and E- populations, being significantly greater in E+ populations. Populations with percentage of endophyte infection between 0% and 100% presented intermediate mean diaspore weight. These results could suggest an adaptive advantage of infected plants as a consequence of endophyte presence.
author	Novas, Maria Victoria Gentile, Agustina Cabral, Daniel
author_facet	Novas, Maria Victoria Gentile, Agustina Cabral, Daniel
author_sort	Novas, Maria Victoria
title	Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
title_short	Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
title_full	Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
title_fullStr	Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
title_full_unstemmed	Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection
title_sort	comparative study of growth parameters on diaspores and seedlings between populations of bromus setifolius from patagonia, differing in neotyphodium endophyte infection
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v198_n6_p421_Novas http://hdl.handle.net/20.500.12110/paper_03672530_v198_n6_p421_Novas
work_keys_str_mv	AT novasmariavictoria comparativestudyofgrowthparametersondiasporesandseedlingsbetweenpopulationsofbromussetifoliusfrompatagoniadifferinginneotyphodiumendophyteinfection AT gentileagustina comparativestudyofgrowthparametersondiasporesandseedlingsbetweenpopulationsofbromussetifoliusfrompatagoniadifferinginneotyphodiumendophyteinfection AT cabraldaniel comparativestudyofgrowthparametersondiasporesandseedlingsbetweenpopulationsofbromussetifoliusfrompatagoniadifferinginneotyphodiumendophyteinfection
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Comparative study of growth parameters on diaspores and seedlings between populations of Bromus setifolius from Patagonia, differing in Neotyphodium endophyte infection

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