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Physiological Studies on Schistostega osmundacea (Dicks.) Mohr
https://doi.org/10.15083/00037705
https://doi.org/10.15083/0003770531929b73-aec8-4c20-96db-84d034e8f9de
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-02-07 | |||||
タイトル | ||||||
タイトル | Physiological Studies on Schistostega osmundacea (Dicks.) Mohr | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/00037705 | |||||
ID登録タイプ | JaLC | |||||
著者 |
TODA, Yasumochi
× TODA, Yasumochi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 1) The optimum intensity of light for Schistostega osmundacea is 0.02-0.002 (BUNSEN'S unit), the protonema thriving well even in so feeble a light as 0.0008. The shoot, however, never grows where light is 0.001 or below it. The relative ""Lichtgenuss"" is 1/4 - 1/500 and the optimum ""Lichtgenuss"" of the moss is 1/50 - 1/200. 2) In a dark place, the protonema can live without producing, for seven months at least, a leafy shoot. in a place where the intensity of light is over 0.1, the moss cannot live. 3) The movement of chromatophores requires a considerable length of time. When the protonema is placed in the light, the chromatophores are scattered in a day, and when the direction of light is changed, they all turn towards it in 7-10 days at a temperature of 15°-25℃. 4) The spherical cell of the protonema seems to enable the moss to effect assimilation in a feeble light. 5) The moss thrives better, and the movement of the chromatophore is faster in a blue and a violet light than in any other visible light except a white light. 6) The optimum temperature for the development of the shoot is 16°-25℃. The protonema will no die so long as the temperature is above -20.5℃., the shoot, however, dying at -18℃. 7) The optimum humidity of air is 90%-100%. 8) The protonema has a strong power of resisting desiccation. 9) ELLE and EMILE MARCHAL'S solution is the best cultural medium for the moss. 10) Calcium nitrate, calcium sulphate, calcium chloride, and calcium carbonate, each in 0.1% solution, are not only not injurious to Schistostega osmundacea, but stimulate its growth to a certain extent. 11) The spore, at a temperature of 16℃-25℃., germinates in one month, and its first filament has a cylindrical shape, producing many spherical cells soon after. | |||||
書誌情報 |
Journal of the College of Science, Imperial University of Tokyo 巻 40, p. 1-30, 発行日 1918-03-31 |
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書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00695779 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | BA29455243 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 471.3 | |||||
主題Scheme | NDC | |||||
日本十進分類法 | ||||||
主題 | 475.9 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | Inperial University of Tokyo | |||||
出版者別名 | ||||||
東京帝國大學理學部 |