บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Possible role of trichothecene mycotoxins in virulence of Fusarium graminearum on maize.

HARRIS, L.J., DESJARDINS, A.E., PLATTNER, R.D., NICHOLSON, P., BUTLER. G., YOUNG, J.C., WESTON, G., PROCTOR, R.H. and HOHN, T.M.

Plant Disease 83 : 954 – 960.

1999

บทคัดย่อ

Possible role of trichothecene mycotoxins in virulence of Fusarium graminearum on maize.

Trichothecene producing and nonproducing Fusarium graminearum strains were tested for their ability to cause Gibberella ear rot in field trials at two locations, Ottawa, Ontario, and Peoria, Illinois.  Maize ears were inoculated with wild-type or transgenic F. graminearum strains in which the trichothecene biosynthetic pathway had been disabled by the specific disruption of the trichodiene synthase gene and with a derivative revertant strain in which trichothecene production had been restored through recombination.  The trichothecene nonproducing strains were still pathogenic but appeared less virulent on maize than the trichothecene producing progenitor and revertant strains, as assayed by most parameters.  This suggests that the trichothecenes may act as virulence factors to enhance the spread of F. graminearum on maize.