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Appl. Environ. Microbiol., 11 1996, 4039-4043, Vol 62, No. 11
CW Bacon, JK Porter, WP Norred and JF Leslie
Fusaric acid is a mycotoxin with low to moderate toxicity, which is of
concern since it might be synergistic with other cooccurring mycotoxins.
Fusaric acid is widespread on corn and corn-based food and feeds and is
frequently found in grain, where Fusarium spp. are also isolated. We
surveyed 78 strains of Fusarium moniliforme, F. crookwellense, F.
subglutinans, F. sambucinum, F. napiforme, F. heterosporum, F. oxysporum,
F. solani, and F. proliferatum for their ability to produce fusaric acid.
Strains in Fusarium section Liseola also were assigned to mating population
of the Gibberella fujikuroi species complex. The fungi could be divided
into three classes, low (< 100 micrograms/g), moderate (100 to 500
micrograms/g), and high (> 500 micrograms/g), based on the amounts of
this mycotoxin produced in culture on autoclaved corn. Strains of mating
populations C from rice consistently produced moderate to high
concentrations of fusaric acid. Two isolates, one each from mating
populations C and D, produced fusaric acid in excess of 1,000 micrograms/g
of corn. No isolates of any of the Fusarium species examined were negative
for the production of fusaric acid on autoclaved corn.
Copyright © 1996, American Society for Microbiology
Production of fusaric acid by Fusarium species
USDA Agricultural Research Service, Toxicology and Mycotoxin Research Unit, Russell Research Center, Athens, Georgia 30604-5677, USA.
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