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タイトルヨミ
バレイショ エキビョウキン ユウソウシノウ ヨリ ユウソウシ ノ ハッシュツ ナラビニ ドウキン ノ カンジュタイ シンニュウ ゴ ノ シンテン ニツイテ ノ 2 3 ノ カンサツ
タイトル別表記
Some Observation on the Liberation of Zoospoores from Zoosporangia of Phytophthora infestans (MONT.) DEBARY and Development of the Pathogens after the Penetration to Their Suscept Plants
ファイル
言語
日本語
著者
山本 昌木
内容記述(抄録等)
Observations of the germination of zoospores from the zoosporangia of Phytophthora infestans (MONT.) DEBARY, which were suspended, in 0.005% ATP and 5x10^<-4> M DNP solution, were carried out under phase-contrast microscope. The move ment of granules (which seemed to be mitochondria through vital staining of 0.0005% Janus Green B solution) and the percentage of sporangial germination was raised by the addition of ATP and was inhibited by DNP solution.
After the zoospores were inoculated to the surface of the cut end of the leaf petiole of potato plants (Variety Irish Cobbler), DNP and ATP were introduced to them with pressure. In the former case, the mycelial growth of the pathogen within the suscept plants was delayed, and in the latter case it was accelerated.
To investigate the invasion of pathogens to potato tubers, the late-blight fungus was inoculated to the cut surface of potato tubers (Varieties used were - Kennebec, Hybrid 4702-7 and 41089-8 as resitant; Irish Cobbler as susceptible) and they were kept at 20℃ for 7 days. Observatioins were undertaken under phase-contrast and polarization microscopes. Double refraction in the invaded parts in the resistant varieties was stronger than in the susceptible one. The possibility of the change of micellar arrangement or structure in the cytoplasm of resitant varieties was taken into consideration from these investigations.
掲載誌名
島根農科大学研究報告
5
開始ページ
24
終了ページ
29
ISSN
05598311
発行日
1957-03-31
NCID
AN00108241
出版者
島根農科大学
出版者別表記
The Shimane Agricultural College
資料タイプ
紀要論文
部局
生物資源科学部
備考
A,Bを含む