ジャガイモ培養組織への疫病菌侵入の観察

概要

論文の詳細を見る
Two types of callus were recognized in cultured tissues of potatoes, i. e., fragile callus on variety Norin No,1 and Irish Cobbler, and compact callus on Interspecific hybrid 96-56. Nine and 12 hours after the inoculation with zoospores of Phytophthora infestans (Race 0 and Race 1), browning and active protoplasmic streaming were observed in the callus tissue cells of Irish Cobbler and Norin No.1. When zoospores of Phytophthora infestans Race O and Race 1 (non-compatible races) were inoculated on interspecific hybrids 96-56 and SH-469, a high grade of browing in the suscept cells was recognized 6 and 9 hours after inoculation. Resistant hybrid showed dark browning in the infected cells. Browming was not observed in free cells from potato callus tissues of variety Irish Cobbler obtained by shaken culture, even 72 hours after inoculation with zoospores of Phytophthora infestans. Both types of hypersensitive flecks and susceptible lesions were recognized on the callus in Interspecific hybrid 96-56 after treating with the DNA fraction obtained from Variety Norin No.1.(Received October 1, 1970)
日本植物病理学会の論文
1971-01-30