Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Yoshikatsu Fujita is active.

Publication


Featured researches published by Yoshikatsu Fujita.


Tetrahedron Letters | 1992

Ustiloxin: a phytotoxin and a mycotoxin from false smuth balls on rice panicles

Yukiko Koiso; Mika Natori; Shigeo Iwasaki; Sadao Sato; Ryoichi Sonoda; Yoshikatsu Fujita; Hiroshi Yaegashi; Zenji Sato

Abstract Ustiloxin( 1 ), an antimitotic tetrapeptide containing a 13-membered ring including an ether linkage, was isolated from the water extract of false smut balls caused by Ustilaginoidea virens on the panicles of rice plant. The absolute structure was determined by a combination of X-ray crystallographic and amino acid analyses. Its structure and biological activity are closely related to those of phomopsin A, a mycotoxin to cause the lupinosis.


Japanese Journal of Phytopathology | 1988

Gene analysis of resistance in wild soybean (Glycine soja) to purple seed stain caused by Cercospora kikuchii.

Yoshikatsu Fujita; Ryoichi Ikeda; Hozumi Suzuki

ツルマメの紫斑病抵抗性の遺伝子分析を行った結果,抵抗性は作用力が異なる二つの優性遺伝子によって支配されると推定された。二つの抵抗性遺伝子は,単独でも栽培品種のなかでもっとも抵抗性強品種の花嫁より強い抵抗性を示し,硬実性,草丈,種皮色, 100粒重とはほとんど連鎖していないと推察された。したがって,ツルマメの抵抗性遺伝子は,紫斑病に対し高度な抵抗性をもつダイズ品種の育成にとって有効と考えられた。


The Journal of Antibiotics | 1994

USTILOXINS, ANTIMITOTIC CYCLIC PEPTIDES FROM FALSE SMUT BALLS ON RICE PANICLES CAUSED BY Ustilaginoidea virens

Yukiko Koiso; Yin Li; Shigeo Iwasaki; Kenji Hanaka; Tomowo Kobayashi; Ryoichi Sonoda; Yoshikatsu Fujita; Hiroshi Yaegashi; Zenji Sato


Natural Toxins | 1994

Lupinosis-like lesions in mice caused by ustiloxin, produced by Ustilaginoieda virens: a morphological study.

Kenichi Nakamura; Naotaka Izumiyama; Kohichiro Ohtsubo; Yukiko Koiso; Shigeo Iwasaki; Ryouichi Sonoda; Yoshikatsu Fujita; Hiroshi Yaegashi; Zenji Sato


Japanese Journal of Phytopathology | 1989

Inoculation with conidiospores of false smut fungus to rice panicles at the booting stage.

Yoshikatsu Fujita; Ryoichi Sonoda; Hiroshi Yaegashi


Japanese Journal of Phytopathology | 1990

Leaf Blast Suppression by Pre-inoculation of Some Incompatible Lesion-type Isolates of Pyricularia oryzae

Yoshikatsu Fujita; Ryoichi Sonoda; Hiroshi Yaegashi


Japanese Journal of Phytopathology | 1988

Histological Study on the Resistance in Soybean (Glycine max) and Wild Soybean (G. soja) to Purple Seed Stain Caused by Cercospora kikuchii

Yoshikatsu Fujita; Hozumi Suzuki


ANNUAL REPORT OF THE SOCIETY OF AGRICULTURAL CHEMICALS OF NORTH JAPAN | 1984

Seasonal Occurrence of Rice Blast in the Paddy Field Transplanted with Diseased-Seedlings

Yoshikatsu Fujita; Hozumi Suzuki


Japanese Journal of Phytopathology | 1983

Studies on Aggressiveness of Races of Pyricularia oryzae

Yoshikatsu Fujita


Japanese Journal of Phytopathology | 1982

Increase in aggressiveness of race 047 of Pyricularia oryzae with years after initial occurrence

Yoshikatsu Fujita; Hozumi Suzuki

Collaboration


Dive into the Yoshikatsu Fujita's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Zenji Sato

Ministry of Agriculture

View shared research outputs
Top Co-Authors

Avatar

Kenichi Nakamura

Radiation Effects Research Foundation

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Yin Li

University of Tokyo

View shared research outputs
Researchain Logo
Decentralizing Knowledge