Presence and distribution of mycophyllas in Argentinian grasses

[摘要] The mycophyllas were studied in grasses ( Poaceae ) from natural Argentinian grasslands.Festuca fiebrigiiPilg.,F. hieronymiHack. var.expansa(St. Yves) Türpe,F. parodiiSt. Yves,Melica macraNees,M. stuckertiiHack.,Poa hieronymiHack..P. holciformisJ. Presl,P. lilloiHack.,P. plicataHack, andP. stuckertii(Hack.) Parodi are reponed as new hosts and the distribution área of the association forFestuca arundinaceaSchreb.,F. hieronymiHack, var.hieronymiandF. tucumanicaE.B. Alexeev, has been extended. The interaction was a mutualistic symbiosis. Most of the species had both the culm parenchyma and the fruits colonized, except inMelica macra. Poa hieronymiandP. plicata , where the symbiont was only observed in the parenchyma. On the other hand, variation in the association was observed in relation to the host species, location and altitude.

[学科分类] 植物学

[关键词] Fungal endophytes;grasses;mycophyllas;natural grasslands;Argentina