INVESTIGADORES
NOVAS Maria Victoria
artículos
Título:
Endophytes of native grasses from South-America: biodiversity and ecology
Autor/es:
IANNONE L.J.; M.V. NOVAS; PINGET, A.; DE BATTISTA, P.J.; YOUNG C.; SCHARDL, C.
Revista:
FUNGAL ECOLOGY
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2012 vol. 5 p. 357 - 363
ISSN:
1754-5048
Resumen:
We review and present preliminary results of studies on cool-season grass endophytes
native to South America. These fungi have been studied only in Argentina, where they
have been detected in 36 native grass species. The hybrid Neotyphodium tembladerae is
present in an extremely wide host range found in diverse environmental conditions, but
some other endophytes seem to be strictly associated with one host species in a particular
environment. In host species that inhabit different environments, the incidence of endophytes
is highly variable among populations and in most of the cases is clearly associated
with environmental conditions. In these native grasses, Neotyphodium presents a mutualistic
behaviour, conferring enhanced growth, promoting the symbiosis with arbuscular
mycorrhizal fungi, and inhibiting growth of pathogenic fungi. In native forage grasses,
preliminary analyses indicate that some Argentinian endophytes can produce lolines but
are unlikely to produce lolitrem B or ergot alkaloids.