Wheat kernel black point and fumonisin contamination by Fusarium proliferatum.
Fusarium proliferatum is a major cause of maize ear rot and fumonisin contamination and also can cause wheat kernel black point disease. The primary objective of this study was to determine whether nine F. proliferatum strains from wheat from Nepal can cause black point and fumonisin contamination in wheat kernels. For comparison, the study included three Fusarium strains from US maize. In test 1, all the strains but one produced significant symptoms of kernel black point; two strains decreased kernel yield; and four strains contaminated kernels with fumonisins B(1), B(2) and B(3) as determined by liquid chromatography-mass spectroscopy. Strain Ggm202 from Nepal, which produced the highest levels of fumonisins (mean = 49 microg g(-1)) on five wheat cultivars in test 1, was confirmed to produce fumonisins (mean = 38 microg g(-1)) on two cultivars in test 2. The data indicate a potential for fumonisin contamination of wheat infected with F. proliferatum.
Desjardins
A E
AE
National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, IL 61604, USA. anne.desjardins@ars.usda.gov
Busman
M
M
Proctor
R H
RH
Stessman
R
R
D002853:Chromatography, Liquid / Q000379:methods; D002523:Edible Grain / Q000382:microbiology*; D005506:Food Contamination / Q000032:analysis; D037341:Fumonisins / Q000378:metabolism*; D005670:Fusarium / Q000302:isolation & purification*; D014644:Genetic Variation; D007558:Italy; D013058:Mass Spectrometry / Q000379:methods; D009183:Mycotoxins / Q000096:biosynthesis*; D009390:Nepal; D013223:Statistics as Topic; D014908:Triticum / Q000382:microbiology*; D014481:United States; D003313:Zea mays / Q000382:microbiology
D037341:Fumonisins; D009183:Mycotoxins