IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
capítulos de libros
Título:
Mycorrhizal diversity in native and exotic willows in Argentina
Autor/es:
LUGO A.; BECERRA A.; NOUHRA E.; OCHOA A.
Libro:
Mycorrhiza: Occurrence and Role in Natural and Restored Environments
Editorial:
Nova Science Publishers
Referencias:
Año: 2010;
Resumen:
Mycorrhizal morphology and diversity vary not only within each particular host family of plants, but also with soil characteristics, nutrients availability, spatial -temporal changes, micro-habitats, and host’s age. Ectomycorrhizae (ECM) and arbuscular mycorrhizae (AM) provide nutritional benefits to their hosts, besides their effects in soil aggregation, pollutants accumulation and host’s interconnection by hyphal network that allows nutrients transport, seedlings establishment and conservation of forest ecosystems. Furthermore, Salicaceae hosts could be involved in dual associations (ECM and AM). Salix species, presents a wide distribution in South America, their populations are mostly located in riparian ecosystems, or in areas temporarily flooded. Riparian zones have an important role regulating the movement of material and water between soil-river systems. ECM diversity and mycorrhizal (ECM and AM) colonization was studied in riparian populations of native S. humboltiana Willd. and exotic S. alba L. in semi-arid environments. Differences in ECM morphotypes and mycorrhizal colonization were found in both species. Effects of soil physical-chemical features on ECM diversity are discussed and ECM morphotypes are illustrated.