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Mycoscience

, Volume 35, Issue 1, pp 77–82 | Cite as

Fusarium crookwellense, a newly isolated fungus from wheat in Japan: Its mycotoxin production and pathogenicity to wheat and barley

  • Yoshitsugu Sugiura
  • Hatsuo Saito
  • Toshitsugu Tanaka
  • Masakatsu Ichinoe
  • Yoshio Ueno
Original Papers

Abstract

Fusarium crookwellense was isolated for the first time in Japan from scabby wheat harvested in Hokkaido in 1991. Four isolates were obtained and examined for their mycological features on culture media, mycotoxin production, and pathogenicity to wheat and barley. The texture of fungal colonies and the morphology of macroconidia on a potato dextrose agar medium were similar to those ofFusarium graminearum. AllF. crookwellense isolates examined produced nivalenol, 4-acetylnivalenol, and zearalenone on rice media at levels ranging from 0.9 to 22.5 µg/g, 0.5 to 25.0 µg/g, and 1.4 to 162.5 µg/g, respectively. All were pathogenic toward the wheat and barley strains tested, and scab symptoms were found on the heads and leaves of plants. This is the first report on domestic isolates ofF. crookwellense from the crop field in Japan.

Key Words

4-acetylnivalenol Fusarium crookwellense nivalenol pathogenicity zearalenone 

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Copyright information

© The Mycological Society of Japan 1994

Authors and Affiliations

  • Yoshitsugu Sugiura
    • 1
    • 2
  • Hatsuo Saito
    • 3
  • Toshitsugu Tanaka
    • 4
  • Masakatsu Ichinoe
    • 5
  • Yoshio Ueno
    • 1
    • 2
  1. 1.Department of Toxicology and Microbial Chemistry, Faculty of Pharmaceutical SciencesScience University of TokyoTokyoJapan
  2. 2.Research Institute for BiosciencesScience University of TokyoChibaJapan
  3. 3.Tohoku National Agricultural Experiment StationAkitaJapan
  4. 4.Public Health Research Institute of Kobe CityKobeJapan
  5. 5.National Institute of Hygienic SciencesTokyoJapan

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