Occurrence of Edible Burdock Black Scurf in Hokkaido and Its Pathogen

DOI Web Site
  • MISAWA Tomoo
    Donan Agricultural Experiment Station, Agricultural Research Department, Hokkaido Research Organization
  • SUMINO Akio
    Donan Agricultural Experiment Station, Agricultural Research Department, Hokkaido Research Organization

Bibliographic Information

Other Title
  • 北海道で発生したゴボウ黒あざ病とその病原菌
  • ホッカイドウ デ ハッセイ シタ ゴボウ コクアザヤマイ ト ソノ ビョウゲンキン

Search this article

Abstract

<p>In 1992, basal petiole rot and root rot of edible burdock were found in three fields in Hokkaido, Japan. Three isolates were obtained from each field. Two and one isolate were identified as Rhizoctonia solani anastomosis group (AG)-2-2 IIIB and AG-2-2 IV, respectively, based on hyphal anastomosis reaction, culture appearance, temperature-dependent growth characteristics, and specific PCR. The originally observed symptoms were reproduced on roots inoculated with the isolates. Edible burdock black scurf caused by R. solani AG-2-2 IIIB has been previously reported in Japan, however, there are no reports of AG-2-2 IV. Therefore, we propose to include it as one of the pathogens of the disease.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top