Summary
Two species of colorlessParamecium, P. caudatum andP. tetraurelia, were suspended in a saline solution. They accumulated in the shaded region when they were introduced into a half-shaded glass tube and illuminated. 520 nm light was most effective in stimulating the accumulation.
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The work was supported by grants from Mitsubishi Foundation and from Ministry of Education of Japan to Y.N. (144006, 411802, 411808, 510902, 511201).
The authors would like to thank Drs T. Ikawa, F. Fukui, K. Kobayashi and S. Ishizaka for many suggestions and helpful discussions. To whom reprint requests should be addressed.
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Iwatsuki, K., Naitoh, Y. Photoresponses in colorlessParamecium. Experientia 38, 1453–1454 (1982). https://doi.org/10.1007/BF01955765
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DOI: https://doi.org/10.1007/BF01955765