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タイトル根こぶ病抵抗性ハクサイ品種を侵すアブラナ科野菜根こぶ病菌3系統の病原性の特徴
タイトルヨミネコブ ビョウ テイコウセイ ハクサイ ヒンシュ オ オカス アブラナカ ヤサイ ネコブ ビョウキン 3 ケイトウ ノ ビョウゲンセイ ノ トクチョウ
タイトル別表記Pathogenicity of Three Isolates of Clubroot Fungus Attacking Clubroot-Resistant Cultivars of Chinese Cabbage
作成者田中, 秀平
坂本, 泰明
梶間, 圭三
藤枝, 國光
勝本, 謙
西, 泰道
作成者ヨミタナカ, シュウヘイ
サカモト, ヤスアキ
カジマ, ケイゾウ
フジエダ, クニミツ
カツモト, ケン
ニシ, ヤスミチ
作成者別表記Tanaka, Shuhei
Sakamoto, Yasuaki
Kajima, Keizo
Fujieda, Kunimitsu
Katumoto, Ken
Nishi, Yasumichi
作成者所属山口大学農学部
内容記述(抄録等)Clubroot-resistant(CR) cultivars of Chinese cabbage, surmised to possess a single CR gene introduced from European fodder turnip, and some crucifers were grown in soils infected with inoculation by five isolates of the clubroot fungus(Plasmodiophora brassicae) from Yamaguchi and Oita Prefectures. Three isolates from Yamaguchi Pref. showed the high pathogenicity to the CR cultivars and another isolate from Yamaguchi Pref. and one from Oita Pref. were non-pathogenic to these cultivars. All the three pathogenic isolates belonged to race 9, one of the unusual races in Japan, by WILLIAMS' method. Relatively mild virulence to a non-CR Chinese cabbage (cv. Nozaki-nigo)and non-virulence to cabbages were also observed commonly in tbese three isolates. On the other hand, two isolates non-pathogenic to the CR cultivars were judged to belong to dominant races (races 1 and 4) in Japan. These two isolates were apparently virulent to Nozaki-nigo and cabbages. All five isolates examined did not affect a line of European fodder turnip, 77b, which was one of CR-gene sources used for the breeding of the CR cultivars. These results suggest that ”77b” has multiple CR genes of which the CR cultivars of Chinese cabbage have only one, instead of a single CR gene, and that the clubroot incidence in these CR cultivars is due to missing out part of the CR genes during the breeding.
本文言語jpn
著者キーワードPlasmodiophora brassicae
clubroot-resistant cultivars
race
pathogenicity
Chinese cabbage
主題農学
資料タイプtext
出版者山口大学農学部
出版者ヨミヤマグチ ダイガク ノウガクブ
NII資料タイプ紀要論文
ISSN0513-1715
NCIDAN00244250
学内刊行物(紀要等)山口大学農学部学術報告
掲載誌名山口大学農学部学術報告
掲載誌名別表記Bulletin of the Faculty of Agriculture, Yamaguchi University
39
開始ページ113
終了ページ122
発行日1991-12
著者版/出版社版その他
リポジトリIDD490039000008
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/D490039000008