Fumonisin B1 production by strains from different mating populations of Gibberella fujikuroi (Fusarium section Liseola)

Fungal isolates of Gibberella fujikuroi are economically important as plant pathogens and as producers of mycotoxins. The species can be subdivided into six distinct mating populations that probably represent different biological species. Members of four of these mating populations-A, D, E, and F-ar...

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Bibliographic Details
Published in:Phytopathology 1992-03, Vol.82 (3), p.341-345
Main Authors: Leslie, J.F. (Kansas State University, Manhattan), Plattner, R.D, Desjardins, A.E, Klittich, C.J.R
Format: Article
Language:English
Subjects:
ACCOUPLEMENT
Agronomy. Soil science and plant productions
Biological and medical sciences
CHIMIOTAXONOMIE
COPULA
FERTILIDAD
FERTILITE
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
GIBBERELLA FUJIKUROI
METABOLITE
METABOLITOS
MICOTOXINAS
MYCOTOXINE
Phytopathology. Animal pests. Plant and forest protection
QUIMIOTAXONOMIA
REPRODUCCION SEXUAL
REPRODUCTION SEXUEE
SORGHUM BICOLOR
Systematics. Morphology. Development cycle. Physiology
ZEA MAYS
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Summary:Fungal isolates of Gibberella fujikuroi are economically important as plant pathogens and as producers of mycotoxins. The species can be subdivided into six distinct mating populations that probably represent different biological species. Members of four of these mating populations-A, D, E, and F-are commonly found in asymptomatic and diseased maize and sorghum plants. We tested 56 G. fujikuroi isolates that had been collected in Kansas and assigned to mating populations for their ability to produce the mycotoxin fumonisin B1. When grown on maize grain under laboratory conditions, members of the A population could produce an average of 1,786 ppm of the toxin, members of the population averaged 636 ppm, the E population 33 ppm, and the F population 7.5 ppm. Strain-related variability in fumonisin B, production was relatively large in the A and D populations (307-4,425 and 4-2,618 ppm, respectively) and relatively low in the E and F populations (6-146 and 2-35 ppm, respectively). The level of fumonisin B1 produced by the different isolates did not appear to be related to geographic origin, host, or disease status of the host plant. Our data are generally consistent with previous work on this mycotoxin, but the differences between the A and F mating populations are significant because both of these groups share the Fusarium moniliforme anamorph
ISSN:0031-949X
1943-7684
DOI:10.1094/Phyto-82-341