Artículo
Do pine plantations provide mycorrhizal inocula for seedlings establishment in grasslands from Patagonia, Argentina?
Fecha de publicación:
03/2011
Editorial:
Springer
Revista:
New Forests
ISSN:
0169-4286
e-ISSN:
1573-5095
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We investigated if Pinus ponderosa plantations in Patagonia are able to produce viable mycorrhizal inocula towards adjacent grasslands, which only harbor endomycorrhizal vegetation. We hypothesized that these inocula have the potential to contribute to the establishment of naturally disseminated seedlings. Also, we determined the main fungal taxa involved in this process. Seven plantations in the onset of their reproductive phase and located in the Patagonian native forest/steppe ecotone (Argentina) were selected. Soil samplings were obtained at nine points along a 450 m long, W-E transect established in each plantation. Soil bioassays were performed in a greenhouse, with P. ponderosa seedlings acting as hosts for mycorrhizal inocula present in soil samples, during 12 months. Mycorrhization percentage, morphotype richness and morphotype composition was determined through morphological evaluation. Viable ecto- and ectendomycorrhizal inocula were found disseminated outside plantations. The amount of mycorrhizal inoculum followed a decreasing function with distance to plantation edges. Mycorrhizal fungal genus Rhizopogon and "E-strain" mycorrhizal types appeared as pioneering taxa regarding seedlings colonization, being the most persistent and frequent symbionts found. Plantations, thus, facilitate the surrounding terrain for newcoming seedlings through the dispersion of mycorrhizal fungal inocula.
Palabras clave:
E-STRAIN
,
ECTOMYCORRHIZAS
,
INOCULUM POTENTIAL
,
PONDEROSA PINE
,
RHIZOPOGON
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Salgado Salomón, María Eugenia; Barroetaveña, Carolina; Rajchenberg, Mario; Do pine plantations provide mycorrhizal inocula for seedlings establishment in grasslands from Patagonia, Argentina?; Springer; New Forests; 41; 2; 3-2011; 191-205
Compartir
Altmétricas