Fungal endophytes help prevent weed invasions
This study tested whether the endophyte-promoted competitive superiority of forage grass can be used in biological weed control. Feasibility of endophytes in weed control was tested by manipulating endophyte colonization of meadow fescue [Scherodonus pratensis ex. Lolium pratense and Festuca pratens...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2013saikkonen1.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Fungal endophytes help prevent weed invasions |
| 520 | |a This study tested whether the endophyte-promoted competitive superiority of forage grass can be used in biological weed control. Feasibility of endophytes in weed control was tested by manipulating endophyte colonization of meadow fescue [Scherodonus pratensis ex. Lolium pratense and Festuca pratensis] in three experiments. First, species richness, the cover percentages and biomass of detected species were estimated in replicated field plots seeded with endophyte-free [E-] or endophyte colonized [E+] meadow fescue. Four years after establishment of the grass monocultures, weed species richness and coverage was higher in E- plots compared to E+ plots. The cover percentages of meadow fescue decreased with weed invasions being 75 percent and 98 percent in E- and E+ plots, respectively. Similarly, the proportion of weeds in the total biomass was over 45 percent higher in E- plots compared to E+ plots at the end of the six years study. Half of the plots were subjected to herbivory by voles, but the effect of endophyte overrode the effect of herbivory. Second, the survival of individually grown E+ meadow fescues was higher and the plants were 50 percent larger and produced 54 percent more inflorescences than E- plants in a common garden experiment. Third, a seed germination test demonstrated that recruitment of new meadow fescues was not mediated by substances inhibiting seed germination potentially released by E+ plants. These results demonstrated that endophyte promoted competitive superiority of grass cultivars can hinder weed invasions. | ||
| 653 | 0 | |a COMPETITION | |
| 653 | 0 | |a GRASS | |
| 653 | 0 | |a GRAZING | |
| 653 | 0 | |a HERBIVORY | |
| 653 | 0 | |a MICROTUS | |
| 653 | 0 | |a NEOTYPHODIUM | |
| 653 | 0 | |a YIELD | |
| 653 | 0 | |a BIOCONTROL AGENT | |
| 653 | 0 | |a BIOLOGICAL CONTROL | |
| 653 | 0 | |a BIOLOGICAL INVASION | |
| 653 | 0 | |a COLONIZATION | |
| 653 | 0 | |a CULTIVAR | |
| 653 | 0 | |a ENDOPHYTE | |
| 653 | 0 | |a FEASIBILITY STUDY | |
| 653 | 0 | |a FUNGUS | |
| 653 | 0 | |a GERMINATION | |
| 653 | 0 | |a INTERSPECIFIC COMPETITION | |
| 653 | 0 | |a MEADOW | |
| 653 | 0 | |a MONOCULTURE | |
| 653 | 0 | |a RECRUITMENT [POPULATION DYNAMICS] | |
| 653 | 0 | |a SPECIES RICHNESS | |
| 653 | 0 | |a SURVIVAL | |
| 653 | 0 | |a WEED | |
| 653 | 0 | |a WEED CONTROL | |
| 653 | 0 | |a FESTUCA PRATENSIS | |
| 653 | 0 | |a LOLIUM | |
| 653 | 0 | |a MICROTUS | |
| 653 | 0 | |a MURIDAE | |
| 653 | 0 | |a NEOTYPHODIUM | |
| 700 | 1 | |a Saikkonen, Kari |9 67620 | |
| 700 | 1 | |a Ruokolainen, Kalle |9 72660 | |
| 700 | 1 | |a Huitu, Otso |9 72661 | |
| 700 | 1 | |9 28667 |a Gundel, Pedro Emilio | |
| 700 | 1 | |a Piltti, Tiina |9 72662 | |
| 700 | 1 | |9 69917 |a Hamilton, Cyd E. | |
| 700 | 1 | |a Helander, Marjo |9 67617 | |
| 773 | |t Agriculture, Ecosystems and Environment |g vol.165 (2013), p.1-5 | ||
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| 900 | |a ^tFungal endophytes help prevent weed invasions | ||
| 900 | |a ^aSaikkonen^bK. | ||
| 900 | |a ^aRuokolainen^bK. | ||
| 900 | |a ^aHuitu^bO. | ||
| 900 | |a ^aGundel^bP.E. | ||
| 900 | |a ^aPiltti^bT. | ||
| 900 | |a ^aHamilton^bC.E. | ||
| 900 | |a ^aHelander^bM. | ||
| 900 | |a ^aSaikkonen^bK. | ||
| 900 | |a ^aRuokolainen^bK. | ||
| 900 | |a ^aHuitu^bO. | ||
| 900 | |a ^aGundel^bP. E. | ||
| 900 | |a ^aPiltti^bT. | ||
| 900 | |a ^aHamilton^bC. E. | ||
| 900 | |a ^aHelander^bM. | ||
| 900 | |a ^aSaikkonen, K.^tAgrifood Research Finland, Plant Protection, FI-31600 Jokioinen, Finland | ||
| 900 | |a ^aRuokolainen, K.^tSection of Ecology, Department of Biology, University of Turku, FI-20014, Finland | ||
| 900 | |a ^aHuitu, O.^tFinnish Forest Research Institute, Suonenjoki Research Unit, Juntintie 154, FI-77600, Suonenjoki, Finland | ||
| 900 | |a ^aGundel, P.E.^tAgrifood Research Finland, Plant Protection, FI-31600 Jokioinen, Finland | ||
| 900 | |a ^aGundel, P.E.^tIFEVA-CONICET, Faculty of Agronomy, Buenos Aires University (UBA), Buenos Aires, Argentina | ||
| 900 | |a ^aPiltti, T.^tSection of Ecology, Department of Biology, University of Turku, FI-20014, Finland | ||
| 900 | |a ^aHamilton, C.E.^tAgrifood Research Finland, Plant Protection, FI-31600 Jokioinen, Finland | ||
| 900 | |a ^aHelander, M.^tSection of Ecology, Department of Biology, University of Turku, FI-20014, Finland | ||
| 900 | |a ^tAgriculture, Ecosystems and Environment^cAgric. Ecosyst. Environ. | ||
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| 900 | |a 1 | ||
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| 900 | |a Vol. 165 | ||
| 900 | |a 5 | ||
| 900 | |a COMPETITION | ||
| 900 | |a GRASS | ||
| 900 | |a GRAZING | ||
| 900 | |a HERBIVORY | ||
| 900 | |a MICROTUS | ||
| 900 | |a NEOTYPHODIUM | ||
| 900 | |a YIELD | ||
| 900 | |a BIOCONTROL AGENT | ||
| 900 | |a BIOLOGICAL CONTROL | ||
| 900 | |a BIOLOGICAL INVASION | ||
| 900 | |a COLONIZATION | ||
| 900 | |a CULTIVAR | ||
| 900 | |a ENDOPHYTE | ||
| 900 | |a FEASIBILITY STUDY | ||
| 900 | |a FUNGUS | ||
| 900 | |a GERMINATION | ||
| 900 | |a INTERSPECIFIC COMPETITION | ||
| 900 | |a MEADOW | ||
| 900 | |a MONOCULTURE | ||
| 900 | |a RECRUITMENT [POPULATION DYNAMICS] | ||
| 900 | |a SPECIES RICHNESS | ||
| 900 | |a SURVIVAL | ||
| 900 | |a WEED | ||
| 900 | |a WEED CONTROL | ||
| 900 | |a FESTUCA PRATENSIS | ||
| 900 | |a LOLIUM | ||
| 900 | |a MICROTUS | ||
| 900 | |a MURIDAE | ||
| 900 | |a NEOTYPHODIUM | ||
| 900 | |a This study tested whether the endophyte-promoted competitive superiority of forage grass can be used in biological weed control. Feasibility of endophytes in weed control was tested by manipulating endophyte colonization of meadow fescue [Scherodonus pratensis ex. Lolium pratense and Festuca pratensis] in three experiments. First, species richness, the cover percentages and biomass of detected species were estimated in replicated field plots seeded with endophyte-free [E-] or endophyte colonized [E+] meadow fescue. Four years after establishment of the grass monocultures, weed species richness and coverage was higher in E- plots compared to E+ plots. The cover percentages of meadow fescue decreased with weed invasions being 75 percent and 98 percent in E- and E+ plots, respectively. Similarly, the proportion of weeds in the total biomass was over 45 percent higher in E- plots compared to E+ plots at the end of the six years study. Half of the plots were subjected to herbivory by voles, but the effect of endophyte overrode the effect of herbivory. Second, the survival of individually grown E+ meadow fescues was higher and the plants were 50 percent larger and produced 54 percent more inflorescences than E- plants in a common garden experiment. Third, a seed germination test demonstrated that recruitment of new meadow fescues was not mediated by substances inhibiting seed germination potentially released by E+ plants. These results demonstrated that endophyte promoted competitive superiority of grass cultivars can hinder weed invasions. | ||
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| 900 | |a 2013saikkonen1.pdf | ||
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