First Report of Pathogenic Association Between Fusarium graminearum and Soybean

Plant Disease
R PioliE N Morandi

Abstract

Fusarium graminearum, a pathogen of wheat and corn, was reported recently as a saprophytic fungus colonizing soybean (Glycine max L. Merr.) fruits and seeds at R7 in Argentina (2). To evaluate the capacity of F. graminearum obtained from stem and seeds of symptomatic soybean plants that cause disease on soybean seedlings, isolates were obtained during the 2001 to 2002 growing season from: (i) the basal one-third of stems from field-grown soybean plants, collected at R5, with light brown external and internal discoloration and leaves with interveinal chlorosis; and (ii) soybean seeds with pink tegument. The pathogen was isolated on potato glucose agar acidified with 0.2% lactic acid (PGAA). Isolates were identified as F. graminearum on the basis of growth rate and pigmentation of colonies on PGAA, lack of microconidia (1), and morphology and size of typical macroconidia in sporodochia developed on Spezieller Nährstoffarmer Agar (3). Isolates of F. graminearum, CE135 and CE136 (from wheat) and CE137 (from corn) deposited in the Centro de Referencia en Micología (CEREMIC), Fac. Farmacia y Bioquímica, UNR, Argentina, were used as references in identifying the soybean isolates. Plants (14-day-old) were inoculated separately with ste...Continue Reading

Citations

Aug 13, 2017·Molecular Plant-microbe Interactions : MPMI·Maria Chiara PaccanaroFrancesco Favaron
Feb 19, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Bhupendra AcharyaAnne E Dorrance
Nov 21, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Chanjuan ZhangWenbin Li
Dec 1, 2013·Plant Disease·M M Díaz AriasL F S Leandro
Mar 22, 2013·Phytopathology·María M Díaz AriasGary P Munkvold
Oct 9, 2018·Mycobiology·Yangseon KimHyeong Kwon Shim
Mar 10, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Peng ChengHenry T Nguyen

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