Effects of the Neotyphodium endophyte status on plant performance of Bromus auleticus, a wild native grass from South America
In this work, the hypothesis that endophytes increase plant performance of Bromus auleticus, a native grass from South America was tested. Seed weight, seedling emergence, development, and plant vegetative propagation were compared in plants from uninfected (E–), partially infected (E+/–) or infecte...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/30979 |
| Acceso en línea: | http://hdl.handle.net/11336/30979 |
| Access Level: | acceso abierto |
| Palabra clave: | https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Sumario: | In this work, the hypothesis that endophytes increase plant performance of Bromus auleticus, a native grass from South America was tested. Seed weight, seedling emergence, development, and plant vegetative propagation were compared in plants from uninfected (E–), partially infected (E+/–) or infected (E+) seed lots. The hypothesis that endophytes confer resistance to defoliation in one-year-old plants was also tested. Seed lots were collected in different grass populations in the Pampean region in Argentina. E+ lots presented both lighter seeds and lighter and shorter ten-day-old seedlings than E+/– and E– lots. E+ and E+/– lots presented higher percentage and rate of emergence, as well as less time of emergence, than E– seed lots. Plants from E+ lots produced more tillers in a year than E+/– and E– plants. Resistance to defoliation was analysed in plants from one E+ and one E– lot. Infected plants were more resistant to defoliation than E– plants. Our results allowed a preliminary characterisation of this endophyte-plant association. Plants from E+ and E+/– lots presented some advantageous characteristics with regards to seed dispersion, vegetative propagation and resistance to defoliation. |
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