INVESTIGADORES
RAJCHENBERG Mario
artículos
Título:
Ectomycorrhizal fungi associated with ponderosa pine and Douglas-fir: a comparison of species richness in native forests and Patagonian plantations
Autor/es:
BARROETAVEÑA C., CÁZARES E., RAJCHENBERG M.
Revista:
MYCORRHIZA
Editorial:
Springer Verlag
Referencias:
Lugar: Berlin; Año: 2007 vol. 17 p. 355 - 373
ISSN:
0940-6360
Resumen:
Abstract The putative ectomycorrhizal fungal species
registered from sporocarps associated with ponderosa pine
and Douglas-fir forests in their natural range distribution
(i.e., western Canada, USA, and Mexico) and from
plantations in south Argentina and other parts of the world
are listed. One hundred and fifty seven taxa are reported for
native ponderosa pine forests and 514 taxa for native
Douglas-fir forests based on available literature and databases.
A small group of genera comprises a high proportion
of the species richness for native Douglas-fir (i.e., Cortinarius,The putative ectomycorrhizal fungal species
registered from sporocarps associated with ponderosa pine
and Douglas-fir forests in their natural range distribution
(i.e., western Canada, USA, and Mexico) and from
plantations in south Argentina and other parts of the world
are listed. One hundred and fifty seven taxa are reported for
native ponderosa pine forests and 514 taxa for native
Douglas-fir forests based on available literature and databases.
A small group of genera comprises a high proportion
of the species richness for native Douglas-fir (i.e., Cortinarius,Cortinarius,
Inocybe, and Russula), whereas in native ponderosa
pine, the species richness is more evenly distributed among
several genera. The comparison between ectomycorrhizal
species richness associated with both trees in native forests
and in Patagonia (Argentina) shows far fewer species in the
latter, with 18 taxa for the ponderosa pine and 15 for the
Douglas-fir. Epigeous species richness is clearly dominant
in native Douglas-fir, whereas a more balanced relation
epigeous/hypogeous richness is observed for native ponderosa
pine; a similar trend was observed for Patagonian
plantations. Most fungi in Patagonian Douglas-fir plantations
have not been recorded in plantations elsewhere,
except Suillus lakei and Thelephora terrestris, and only
56% of the fungal taxa recorded in Douglas-fir plantations
around the world are known from native forests, the other
taxa being new associations for this host, suggesting that
new tree + ectomycorrhizal fungal taxa associations are
favored in artificial situations as plantations., and Russula), whereas in native ponderosa
pine, the species richness is more evenly distributed among
several genera. The comparison between ectomycorrhizal
species richness associated with both trees in native forests
and in Patagonia (Argentina) shows far fewer species in the
latter, with 18 taxa for the ponderosa pine and 15 for the
Douglas-fir. Epigeous species richness is clearly dominant
in native Douglas-fir, whereas a more balanced relation
epigeous/hypogeous richness is observed for native ponderosa
pine; a similar trend was observed for Patagonian
plantations. Most fungi in Patagonian Douglas-fir plantations
have not been recorded in plantations elsewhere,
except Suillus lakei and Thelephora terrestris, and only
56% of the fungal taxa recorded in Douglas-fir plantations
around the world are known from native forests, the other
taxa being new associations for this host, suggesting that
new tree + ectomycorrhizal fungal taxa associations are
favored in artificial situations as plantations.Suillus lakei and Thelephora terrestris, and only
56% of the fungal taxa recorded in Douglas-fir plantations
around the world are known from native forests, the other
taxa being new associations for this host, suggesting that
new tree + ectomycorrhizal fungal taxa associations are
favored in artificial situations as plantations.