01180nas a2200169 4500008004100000022001400041245012800055210006900183300001400252490000800266520055200274653001900826100002400845700002300869700001800892856010000910 2007 eng d a0953-756200aPhytophthora austrocedrae sp. nov., a new species associated with Austrocedrus chilensis mortality in Patagonia (Argentina)0 aPhytophthora austrocedrae sp nov a new species associated with A a308 - 3160 v1113 a

Phytophthora austrocedrae is a new species isolated from necrotic lesions of stem and roots of Austrocedrus chilensis. It is a homothallic species characterized by semipapillate sporangia, oogonia with amphigynous antheridia, and very slow growth (1-2†mm†d-1 on V-8 agar at 17.5†$ınfty$C optimum temperature). Phylogenetic analysis of ITS rDNA sequence indicates that its closest relative is Phytophthora syringae, another species frequently isolated from soil and streams in A. chilensis forests.

10asoil pathogens1 aGreslebin, Alina, G1 aHansen, Everett, M1 aSutton, Wendy uhttp://www.sciencedirect.com/science/article/B7XMR-4MWPSTC-2/2/cd293441766ba86e83832d81ab837e1a01442nas a2200157 4500008004100000245009500041210006900136300001200205490000700217520090800224100002401132700002301156700002301179700002301202856005901225 2005 eng d00aPhytophthora species from declining Austrocedrus chilensis forests in Patagonia, Argentina0 aPhytophthora species from declining Austrocedrus chilensis fores a218-2280 v973 a

A survey of Phytophthora spp. in declining and healthy Austrocedrus chilensis forest was conducted to obtain an overview of the species that inhabit these forests. Seventeen declining and three healthy stands plus 11 associated streams were surveyed. Five Phytophthora species were recovered. P. syringae was the most common species isolated from soil and/or streams at nine declining sites and one healthy site. P. gonapodyides was isolated from streams only, at five declining sites. P. cambivora was isolated from soil and the undescribed taxa P. taxon Pgchlamydo’ and 22 P. taxon Raspberry’ were isolated from streams at one declining site each. The species were identified by ITS rDNA sequences and morphological features. Brief descriptions of each species and a discussion of their possible relationship with "mal del cipres" are presented.

1 aGreslebin, Alina, G1 aHansen, Everett, M1 aWinton, Loretta, M1 aRajchenberg, Mario uhttp://www.mycologia.org/cgi/content/abstract/97/1/218