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  1. 紀要
  2. お茶の水女子大學自然科學報告
  3. 12(2)

Plasmolysis-like Phenomena in Paramecium Cells Effects of Ca-Precipitant Na-salts and of Non-Electrolytes

http://hdl.handle.net/10083/2100
http://hdl.handle.net/10083/2100
f66bf807-1d88-4061-82b5-be7ef636de0b
名前 / ファイル ライセンス アクション
KJ00004829547.pdf KJ00004829547.pdf (3.1 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2008-04-30
タイトル
タイトル Plasmolysis-like Phenomena in Paramecium Cells Effects of Ca-Precipitant Na-salts and of Non-Electrolytes
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
著者 Wada, Tuneyo

× Wada, Tuneyo

WEKO 69588

Wada, Tuneyo

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和田, 恒代

× 和田, 恒代

WEKO 69590

en 和田, 恒代

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著者(ヨミ)
識別子Scheme WEKO
識別子 69589
姓名 ワダ, ツネヨ
内容記述
内容記述タイプ Other
内容記述 1. A very marked phenomenon of "plasmolysis" (protoplast shrinking away from the pellicle) was shown to take place in Paramecium cells, when they were immersed in Na-oxalate (and also Na-citrate) solutions at lower concentrations (0.01 to 0.06M). It seemed to be different in nature from the true plasmolysis which had already been reported to be obtainable in hypertonic solutions of NaCl, etc., in that it was apparently of a non-osmotic origin. 2. In higher concentrations of Na-oxalate (and Na-citrate) there was only flattening of the cell bodies, which was followed by abnormal swelling of protoplasm. 3. Sucrose and glycerol caused only flattening of Paramecia even in very hypertonic solutions, and this was soon followed by cell disintegration. Only extremely concentrated (above 6M) glycerol solution was effective in setting up quite remarkable and stable form of plasmolysis in a fairly high percentage of the cells. These findings in non-electrolytic media were discussed as to their nature and mechanism. Postscript added in proof : Iwamatsu's published report (Iwamatsu and Ohfuchi, 1959) was received by the present\
writer after the manuscript of this paper had gone to the editors. The threshold concentration of glycerol for plasmolysis turned out somewhat lower by these authors. Their results were otherwise largely confirmative of the previous and present results reported by the writer, inclusive of the electrolyte effects, except for the effective concentration range of Na_2SO_4 falling very high (about twice as high as the writer's). This was possibly due to their failure to take into account the crystallization water in preparing the molar solution.
書誌情報 お茶の水女子大學自然科學報告

巻 12, 号 2, p. 73-86, 発行日 1961-12
ISSN
収録物識別子タイプ ISSN
収録物識別子 00298190
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00033958
フォーマット
内容記述タイプ Other
内容記述 application/pdf
形態
3130735 bytes
日本十進分類法
主題Scheme NDC
主題 400
出版者
出版者 お茶の水女子大学
資源タイプ
内容記述タイプ Other
内容記述 紀要論文
資源タイプ・ローカル
紀要論文
資源タイプ・NII
Departmental Bulletin Paper
資源タイプ・DCMI
text
資源タイプ・ローカル表示コード
03
所属
Zoological Laboratory, Faculty of Science, Ochanomizu University
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