Role of foliar fungal endophytes in litter decomposition among species and population origins

Litter decomposition is a key ecosystem process which returns nutrients from dead plant material to mineral forms in the soil. We examined whether systemic fungal endophytes modulate recycling of nutrients directly by altering litter decomposition. We studied litter decomposition mediated by Epichlo...

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Otros Autores: Gundel, Pedro Emilio, Helander, Marjo, Garibaldi, Lucas Alejandro, Vázquez de Aldana, L. A., Zabalgogeazcoa, Iñigo, Saikkonen, Kari
Formato: Artículo
Lenguaje:Inglés
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2016gundel2.pdf
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Aporte de:Registro referencial: Solicitar el recurso aquí
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024 |a 10.1016/j.funeco.2016.03.001 
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245 1 0 |a Role of foliar fungal endophytes in litter decomposition among species and population origins 
520 |a Litter decomposition is a key ecosystem process which returns nutrients from dead plant material to mineral forms in the soil. We examined whether systemic fungal endophytes modulate recycling of nutrients directly by altering litter decomposition. We studied litter decomposition mediated by Epichloe endophytes in litter-bag experiments. We examined direct endophyte effects on litter decomposition in wild populations and cultivars of Schedonorus phoenix and Schedonorus pratensis. In the first experiment, endophyte presence tended to increase litter decomposition rate in cultivars of the two grass species [S. phoenix and S. pratensis]. However, in the second experiment plant origin had a stronger influence than endophyte symbiosis in S. phoenix. Interestingly, the initial level of alkaloids was associated positively with decomposition in S. phoenix populations. Characteristics associated with litter quality were not clearly related to either endophytes or decomposition rate. Our results suggest that endophytes can enhance litter breakdown but their role in nutrient cycling is far more complex depending on plant population origin. 
650 |2 Agrovoc  |9 26 
653 0 |a EPICHLOE 
653 0 |a FESTUCA SPP. 
653 0 |a SYMBIOSIS 
653 0 |a PLANTE MICROORGANISM INTERACTION 
653 0 |a ECOSYSTEM PROCESSES 
700 1 |9 28667  |a Gundel, Pedro Emilio 
700 1 |a Helander, Marjo  |9 67617 
700 1 |9 31177  |a Garibaldi, Lucas Alejandro 
700 1 |a Vázquez de Aldana, L. A.  |9 70216 
700 1 |9 68290  |a Zabalgogeazcoa, Iñigo 
700 1 |a Saikkonen, Kari  |9 67620 
773 |t Fungal Ecology  |g vol.21 (2016), p.50-56, tbls., grafs. 
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