%0 Journal Article
%T El g谷nero Marielliottia (Hifomicetes, Ascomycota): Nuevo tax車n asociado a la Micoflora del Grano de Trigo en Argentina The genus Marielliottia (Hyphomycetes, Ascomycota): a new taxon associated with wheat grain mycoflora in Argentina
%A Marina Sisterna
%A David Minhot
%J Bolet赤n de la Sociedad Argentina de Bot芍nica
%D 2006
%I Sociedad Argentina de Bot芍nica
%X Se registra por primera vez al g谷nero Marielliottia asociado a la micoflora del grano de trigo pan en Argentina. Marielliottia biseptata fue aislada de muestras de semillas provenientes de ensayos conducidos en la Estaci車n Experimental Julio Hirschhorn (Los Hornos, Buenos Aires). Las semillas fueron sembradas en agar papa glucosado (APG) e incubadas a 21㊣ 1∼C ; HR 80% bajo 12 h luz + UV; 12 h de oscuridad. La evaluaci車n para el relevamiento de los hongos se realiz車 a los 5 y 8 d赤as mediante una lupa estereosc車pica. Para la identificaci車n taxon車mica, se examinaron las caracter赤sticas micromorfol車gicas y de cultivo. Se realizaron inoculaciones sobre semillas con suspensi車n de esporas. Se presenta una descripci車n, ilustraciones, antecedentes e importancia del hongo aqu赤 tratado. For the first time, the genus Marielliottia is registered on wheat grains in Argentina. This fungus was isolated from seed samples from trials conducted at the Estaci車n Experimental Julio Hirschhorn (Los Hornos, Buenos Aires). The seeds were plated on potato dextrose agar (PDA) and incubated at 21㊣1∼C; HR 80% under fluorescent lamps supplemented with UV light during 12 h photoperiod. Evaluation was performed for the presence of fungi at 5 and 8 days with the aid of a stereoscopic microscope. For taxonomic identification, the micromorphology and cultures features were examined. As a result of this study, Marielliottia biseptata was determined and inoculations with spore suspension on seeds were carried out. A description, illustrations, antecedents and importance of the treated fungus are presented.
%K Escudete negro
%K Manchado del grano
%K Marielliottia biseptata
%K Sanidad de semillas
%K Trigo pan
%K Triticum aestivum
%K Blackpoint
%K Kernel discoloration
%K Marielliottia biseptata
%K Seed health
%K Common wheat
%K Triticum aestivum
%U http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722006000200003