@article{oai:repo.qst.go.jp:00043244, author = {Sakashita, Tetsuya and Hama, Takeo and Fuma, Shoichi and Doi, Masahiro and Nakamura, Yuuji and Ishii, Nobuyoshi and Takeda, Hiroshi and 坂下 哲哉 and 府馬 正一 and 土居 雅広 and 中村 裕二 and 石井 伸昌 and 武田 洋}, issue = {2}, journal = {Journal of Radioanalytical and Nuclear Chemistry}, month = {}, note = {To investigate the possibility of C14(CO2) fixation using microorganisms in a high-dose area, the photosynthetic activity (specific production rate: SPR) and cellular proliferation (colony forming unit: CFU) of Euglena gracilis Z irradiated with gamma-rays at a dose of 0 to 500 Gy were determined. The dose responses of SPR and CFU suggested that it was possible to operate a CO2 fixation system of Euglena up to 100 Gy. Even at a dose of 500 Gy, about half of the photosynthetic activity under non-irradiated condition was considered possible.}, pages = {401--403}, title = {Effects of gamma irradiation on CO2 fixation and cellular proliferation of Euglena gracilis Z.}, volume = {254}, year = {2002} }