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Sakashita, Tetsuya; Suzuki, Michiyo; Fukamoto, Kana; Funayama, Tomoo; Wada, Seiichi*; Kobayashi, Yasuhiko; Horikawa, Daiki*; Bolige, A.*
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 110, 2008/03
We investigated the effects of rays on the salt chemotaxis learning in . We observed no decrease of performance of the salt chemotaxis learning following 500 Gy irradiation. Also, showed the normal chemotaxis to benzaldehyde, whereas the salt chemotaxis learning were affected by irradiation during learning.
Bolige, A.*; Sakashita, Tetsuya; Kakizaki, Takehiko*; Funayama, Tomoo; Hamada, Nobuyuki*; Wada, Seiichi*; Kobayashi, Yasuhiko; Goto, Ken*
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 117, 2008/03
We report here how these rhythms are related to each other. First, irradiation temperatures influenced neither survival after exposure to UV, rays, nor C ions, whereas the incubation at high temperatures (25 C) after irradiation considerably lowered the survival particularly after irradiation, but not after UV irradiation at all. Secondly, although the antioxidants carotene and dimethylsulfoxide (DMSO) increased the survival of the alga at the least resistant phase after UV C and UV B irradiation, respectively, to the level of the most resistant alga, none of these were not so effective for or C ion irradiation. Finally, FITC dextran was incorporated into the alga only after C ion irradiation but not irradiation, suggesting that C ion may perforate cell membranes to kill the alga.