Symbiotic interactions as drivers of trade - offs in plants effects of fungal endophytes on tall fescue
Studying the controls on biomass allocation trade-offs in plants are important since they affect harvestable product yields and are critical to understanding symbiotic interactions. Epichloae fungal endophytes associate with cool-season grasses, growing systemically within the plant inter-cellular s...
| Otros Autores: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2013gundel2.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Symbiotic interactions as drivers of trade - offs in plants |b effects of fungal endophytes on tall fescue |
| 520 | |a Studying the controls on biomass allocation trade-offs in plants are important since they affect harvestable product yields and are critical to understanding symbiotic interactions. Epichloae fungal endophytes associate with cool-season grasses, growing systemically within the plant inter-cellular spaces and are transmitted through seeds. We explore the endophytes influence on the relationship between the plant reproductive and vegetative aboveground biomass [reproductive effort: RE] and on the trade-off between two components of the reproductive biomass, number and weight of panicles [RPN], using tall fescue as a model system. Naturally endophyte-colonized, manipulatively endophyte-free, and naturally endophyte-free plants from Northern European wild-populations together with the cultivar Kentucky-31 were grown under different environmental conditions [nutrients x water]. The endophyte had an effect on the RPN [E+: 6.19, ME-: 4.68 and E-: 4.40] which indicates how reproductive biomass is partitioned into number and mass of panicles, but not on RE [approximately equal to 0.06]. As expected, wild plants showed higher reproductive effort [approximately equal to 0.06] compared to the cultivar KY-31 [0.05], irrespective of endophyte presence. Endophyte-colonized plants had lighter panicles than endophyte-free plants, a pattern that was clear among low-yielding plants. Similarly, the trade-off between RPN and RE was higher for endophyte-colonized plants. This was again evident among plants with low RE indicating that colonized plants split the yield into either greater number of panicles and/or lighter panicles. The effect of vertically transmitted endophytes has earlier been studied as ratios [e.g. RE]; however, our study shows that this approach may hide size-dependent endophyte effects on these relationships. Our study reveals that Neotyphodium endophyte affects trade-offs in tall fescue plants in a complex manner, and is influenced by a number of biological and abiotic factors. | ||
| 653 | 0 | |a ALLOMETRY | |
| 653 | 0 | |a BIOMASS PARTITIONING | |
| 653 | 0 | |a FESTUCA | |
| 653 | 0 | |a NEOTYPHODIUM | |
| 653 | 0 | |a PLANT-ENDOPHYTE INTERACTION | |
| 653 | 0 | |a SYMBIOSIS | |
| 653 | 0 | |a FESTUCA ARUNDINACEA | |
| 653 | 0 | |a POACEAE | |
| 700 | 1 | |9 28667 |a Gundel, Pedro Emilio | |
| 700 | 1 | |9 31177 |a Garibaldi, Lucas Alejandro | |
| 700 | 1 | |a Helander, Marjo |9 67617 | |
| 700 | 1 | |a Saikkonen, Kari |9 67620 | |
| 773 | |t Fungal Diversity |g vol.60, no.1 (2013), p.5-14 | ||
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| 900 | |a ^tSymbiotic interactions as drivers of trade-offs in plants^sEffects of fungal endophytes on tall fescue | ||
| 900 | |a ^aGundel^bP.E. | ||
| 900 | |a ^aGaribaldi^bL.A. | ||
| 900 | |a ^aHelander^bM. | ||
| 900 | |a ^aSaikkonen^bK. | ||
| 900 | |a ^aGundel^bP. E. | ||
| 900 | |a ^aGaribaldi^bL. A. | ||
| 900 | |a ^aHelander^bM. | ||
| 900 | |a ^aSaikkonen^bK. | ||
| 900 | |a ^aGundel^bP.E.^tDepartment of Plant Production, MTT Agrifood Research Finland, 31600 Jokioinen, Finland | ||
| 900 | |a ^aGundel^bP.E.^tIFEVA-CONICET-Faculty of Agronomy, Buenos Aires University (UBA), Buenos Aires, Argentina | ||
| 900 | |a ^aGaribaldi^bL.A.^tSede Andina, Universidad Nacional de Río Negro (UNRN) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mitre 630, 8400 San Carlos de Bariloche, Río Negro, Argentina | ||
| 900 | |a ^aHelander^bM.^tSection of Ecology, Department of Biology, University of Turku, Turku, Finland | ||
| 900 | |a ^aSaikkonen^bK.^tDepartment of Plant Production, MTT Agrifood Research Finland, 31600 Jokioinen, Finland | ||
| 900 | |a ^tFungal Diversity^cFungal Diversity | ||
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| 900 | |a 5 | ||
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| 900 | |a Vol. 60, no. 1 | ||
| 900 | |a 14 | ||
| 900 | |a ALLOMETRY | ||
| 900 | |a BIOMASS PARTITIONING | ||
| 900 | |a FESTUCA | ||
| 900 | |a NEOTYPHODIUM | ||
| 900 | |a PLANT-ENDOPHYTE INTERACTION | ||
| 900 | |a SYMBIOSIS | ||
| 900 | |a FESTUCA ARUNDINACEA | ||
| 900 | |a POACEAE | ||
| 900 | |a Studying the controls on biomass allocation trade-offs in plants are important since they affect harvestable product yields and are critical to understanding symbiotic interactions. Epichloae fungal endophytes associate with cool-season grasses, growing systemically within the plant inter-cellular spaces and are transmitted through seeds. We explore the endophytes influence on the relationship between the plant reproductive and vegetative aboveground biomass [reproductive effort: RE] and on the trade-off between two components of the reproductive biomass, number and weight of panicles [RPN], using tall fescue as a model system. Naturally endophyte-colonized, manipulatively endophyte-free, and naturally endophyte-free plants from Northern European wild-populations together with the cultivar Kentucky-31 were grown under different environmental conditions [nutrients x water]. The endophyte had an effect on the RPN [E+: 6.19, ME-: 4.68 and E-: 4.40] which indicates how reproductive biomass is partitioned into number and mass of panicles, but not on RE [approximately equal to 0.06]. As expected, wild plants showed higher reproductive effort [approximately equal to 0.06] compared to the cultivar KY-31 [0.05], irrespective of endophyte presence. Endophyte-colonized plants had lighter panicles than endophyte-free plants, a pattern that was clear among low-yielding plants. Similarly, the trade-off between RPN and RE was higher for endophyte-colonized plants. This was again evident among plants with low RE indicating that colonized plants split the yield into either greater number of panicles and/or lighter panicles. The effect of vertically transmitted endophytes has earlier been studied as ratios [e.g. RE]; however, our study shows that this approach may hide size-dependent endophyte effects on these relationships. Our study reveals that Neotyphodium endophyte affects trade-offs in tall fescue plants in a complex manner, and is influenced by a number of biological and abiotic factors. | ||
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