Imperfect Vertical Transmission of the Endophyte Neotyphodium in Exotic Grasses in Grasslands of the Flooding Pampa

dc.creatorGundel, Pedro E.
dc.creatorGaribaldi, Lucas Alejandro
dc.creatorTognetti, Pedro M.
dc.creatorAragón, Roxana
dc.creatorGhersa, Claudio M.
dc.creatorOmacini, Marina
dc.date2008-09-17
dc.date.accessioned2023-08-30T16:34:07Z
dc.date.available2023-08-30T16:34:07Z
dc.identifierGundel, Pedro E., Garibaldi, Lucas A., Tognetti, Pedro M. Aragón, Roxana., Ghersa, Claudio M. & Omacini, Marina. (2008). Imperfect Vertical Transmission of the Endophyte Neotyphodium in Exotic Grasses in Grasslands of the Flooding Pampa. Springer; Microbial ecology; 57 (4); 740-748
dc.identifier1432-184X
dc.identifier0095-3628
dc.identifierhttps://www.jstor.org/stable/40605705?seq=1#page_scan_tab_contents
dc.identifierhttp://hdl.handle.net/11336/76692
dc.identifierhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/3289
dc.identifier10.1007/s00248-008-9447-y
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8532260
dc.descriptionFil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
dc.descriptionFil: Garibaldi, Lucas Alejandro. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio Ecotono; Argentina.
dc.descriptionFil: Tognetti, Pedro M. Universidad de Buenos Aires (UBA). Facultad de Agronomía; Argentina.
dc.descriptionFil: Aragón, Roxana. Universidad de Buenos Aires (UBA). Facultad de Agronomía; Argentina.
dc.descriptionFil: Ghersa, Claudio M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
dc.descriptionFil: Omacini, Marina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura; Argentina.
dc.descriptionFil: Gundel, Pedro E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
dc.descriptionFil: Garibaldi, Lucas Alejandro. Universidad de Buenos Aires (UBA). Facultad de Agronomía; Argentina.
dc.descriptionFil: Ghersa, Claudio M. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
dc.descriptionFil: Omacini, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
dc.descriptiontrue
dc.descriptionCool-season grasses establish symbioses with vertically transmitted Neotyphodium endophytes widespread in nature. The frequency of endophyte-infected plants in closed populations (i.e., without migrations) depends on both the differential fitness between infected and non-infected plants, and the endophyte-transmission efficiency. Most studies have been focused on the first mechanism ignoring the second. Infection frequency and endophyte transmission from vegetative tissues to seeds were surveyed in two grasses growing in vegetation units that differ in flood and grazing regimes, and soil salinity. Transmission efficiency and infection frequency for tall fescue did not vary significantly and were 0.98 and 1.00, respectively. For Italian ryegrass, transmission efficiency and infection frequency were 0.88 and 0.57 in humid prairies, and 0.96 and 0.96 in the other vegetation units. Only in humid mesophytic meadows, the observed pattern was irrespective of the presence or absence of grazers. Our results suggest that selection forces for endophyte infection are different for both species. Imperfect transmission was only compensated in tall fescue through an increased fitness of infected plants. Interpreting variations of infection frequency only in terms of differential fitness can be misleading, considering that endophyte transmission can be imperfect and variable in nature. Therefore, this study highlights the importance of measuring transmission efficiency.
dc.formatapplication/pdf
dc.languageen
dc.publisherSpringer
dc.relation57
dc.relationMicrobial ecology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectNormalize Difference Vegetation Index
dc.subjectTall Fescue
dc.subjectTransmission Efficiency
dc.subjectInfection Frequency
dc.subjectItalian Ryegrass
dc.titleImperfect Vertical Transmission of the Endophyte Neotyphodium in Exotic Grasses in Grasslands of the Flooding Pampa


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