Comparative study of gamma-ray and high-energy carbon ion irradiation on negative gravitaxis in Euglena gracilis Z
2002
Sakashita, T. | Doi, M. | Yasuda, H. | Takeda, H. | Fuma, S. | Nakamura, Y. | Hader, D.P.
The effects of 60Co gamma-ray and 290 MeV/amu carbon ion irradiation on negative gravitaxis was studied in the photosynthetic flagellate Euglena gracilis strain Z in a dose-response dependent manner. Cells were exposed to the doses (0-200 Gy for water). The negative gravitaxis was quantified by the r-value observed in a recently developed biomonitoring system. The present results demonstrate the inhibitory effects of gamma-rays and 290 MeV/amu carbon ions on negative gravitaxis of the Euglena gracilis strain Z. The 290 MeV/amu carbon ions had a greater impact at a low dose (<40 Gy) than the 60Co gamma-rays.
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