Abstract Early late effects of accelerated heavy ions (HZE) on the embryonic tissue of seeds were investigated seeing that initial cells of the plant eumeristems resemble the original cells of animal and human tissues with continuous cell proliferation. The endpoints measured were lethality and tumorization in the M1-generation for early effects and embryonic lethality in the M2-generation for late effects. The biological endpoints are plotted as functions of the physical parameters of the irradiation i.e. ion fluence (p/cm2), dose (Gray), charge Z and inear nergy ransfer (LET). The results presented contribute to the estimation of the principles of biological HZE effects and thus may help to develop a unified theory which could explain the whole sequence from physical and chemical reactions to biological responses connected with heavy ion radiation. Additionally, the data of this paper may be used for the discussion of the quality factor for heavy ion irradiation needed for space missions and for HZE-application in radio-therapy by use of accelerators (UNILAC, (SIS/ESR), BEVALAC).
Early and late damages induced by heavy charged particle irradiation in embryonic tissue of Arabidopsis seeds
Advances in Space Research ; 9 , 10 ; 117-121
1989-01-01
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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