近畿大学農学総合研究所報告 = Bulletin of the Institute for Comprehensive Agricultural Sciences, Kinki University. 5:23-30
بيانات النشر:
近畿大学農学総合研究所, 1997.
سنة النشر:
1997
الوصف:
[Synopsis] Deoxynivalenol (DON) and nivalenol (NIV) are trichothecene mycotoxins produced independently by Fusarium graminearum Schwabe (telemorph Gibberella zeae (Schw.) Petch.), one of the major causative fungi of head blight disease in wheat and barley, and are two major trichothecenes coincidentally occurring in the domestic cereals in Japan. This paper describes comprehensive chemical and mycological studies on (1) the dynamics of the incidence of dispersal ascospores of trichothecene-producing G. zeae in the crop field, (2) the correlation between the incidence of toxigenic G. zeae and F. graminearum in the field and the occurrence of DON and NIV in wheat, and (3) the geographic difference in the distribution of toxigenic G. zeae (F. graminearum) and the occurrence of DON and NIV in Japanese wheat and barley grains. DON was the major trichothecene in the northern district and NIV in the central districts, whereas in the southern districts the DON level was slightly less in Shikoku district and slightly higher in Kyushu district than the NIV level. These results were clearly correlated to the geographic difference in the distribution of different chemotypes of Fusarium species producing the trichothecenes in Japan.
