On several factors which affect the conidial characteristics of Fusarium solani (MART.) APP et WR. II On the concentration of the Medium
スポンサーリンク
概要
- 論文の詳細を見る
1. The considerable differences in growth forms of Fusarium solani appeared by altering continuously the concentration of the medium from N/10 to 5N. But there is almost no difference among the velocity of the growth in radial direction of the fungous colonies. 2. The rate of appearance of 3-, 2- and 1-septate conidia varied conspicuously accordimg to the change of the concentration of the medium. That of 3-and 2-septate conidia showed the smallest value and that of 1-septate conidia the largest at N/2. 3. It seems to exist a close relation between the variation of the rate of appearance and that of the size of them. At N/2, the size of 3- and 1-septate conidia shows the smallest value. The variation of the rate of appearance and that of the shape of 3-septate conidia nearly coincide with each other. That of 1-septate conidia shows fairly reverse tendency to the case of 3-septate conidia. 4. The difference among the shape of conidia, appeared under various concentrations of the medium, was recognized clearly. That is, the shape of conidia produced in low concentrations, was normal and showed so called "sickel shape". But, in higher concentrations, a part of conidia frequently swelled and the shape of them became abnormal. It is sure that a sort of variations in the nature of the content of these swollen parts are produced, according to the fact that these swollen parts are difficult to stain by ruthenium red.菌類を人工培養する場合，数多くの培養条件が考へられるが，それらの一つとして，培地の濃度がFusarium solaniの分生胞子の性質，特に隔膜の形成，大さ，形等にどの様な影響を及すかといふ事に主眼をおいて研究を行つた。換言すれば本研究は培地の濃度の変化に対して，本菌がどの様な形態学的反応を示すかといふ事に就いて行はれたものである。培養基は，第一報に述べた如くBROWNの"synhetic potats dextrose" agarを用ひ，その濃度を標準と見做してNで表はすことゝし，N/10，N/5，N/2，N，2N，5Nの六段階の濃度を有するBROWNの培養基を実験に用ひた。例へばN/10は寒天以外の成分の使用量はNの場合の1/10になつている事を示す。寒天だけは総ての場合2％の割合で使用した。
- 東京大学大学院農学生命科学研究科附属演習林,The Tokyo University Forests,大学院の論文
東京大学大学院農学生命科学研究科附属演習林,The Tokyo University Forests,大学院 | 論文
- 地表面傾斜の滲透に及ぼす影響（室内模型実験）
- 連送式索道の荷重牽引力算定法（第2報）
- 連送式索道の荷重牽引力算定法（第1報）
- Changes of Reserve Foods in Seeds of Kuromatu (Pinus Thunbergii PARL.) during the Course of Germination
- 四国西南部の腹帯林植生