1957 年 22 巻 1 号 p. 60-68
The obtained data concerning the threadlike apparatus in the tissue of Mimosa pudica L. may be summarized as follows:
1) In the lacunal parenchyma of the petiole, the threadlike apparatus which is connected with the tannin vacuole can be observed in tap water immersion.
2) The threadlike apparatus are stained with neutral red, brilliant cresyl blue, Nile blue sulphate, rholamine B and chrysoidin. These dyes are all basic, and the positive reaction to them in vital staining indicates that the threads may contain a certain substances of a lipinous nature.
3) The threads gradually contract in lactic acid, and finally attenuate leaving only a trace.
4) From the data of these experiment, it is concluded that the threads are one of the cellular elements, and are not artificial figures.