Contrast of Dry and Watersaturated Arabidopsis Seeds Irradiated by MeV Energy Ions

MEI Tao; QIN Huai-li; XUE Jian-ming; WANG Yu-gang#

doi:10.11804/NuclPhysRev.24.02.129

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MEI Tao, QIN Huai-li, XUE Jian-ming, WANG Yu-gang#. Contrast of Dry and Watersaturated Arabidopsis Seeds Irradiated by MeV Energy Ions[J]. Nuclear Physics Review, 2007, 24(2): 129-132. doi: 10.11804/NuclPhysRev.24.02.129

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MEI Tao, QIN Huai-li, XUE Jian-ming, WANG Yu-gang#. Contrast of Dry and Watersaturated Arabidopsis Seeds Irradiated by MeV Energy Ions[J]. Nuclear Physics Review, 2007, 24(2): 129-132. doi: 10.11804/NuclPhysRev.24.02.129

Contrast of Dry and Watersaturated Arabidopsis Seeds Irradiated by MeV Energy Ions

doi: 10.11804/NuclPhysRev.24.02.129

Key Laboratory of Heavy Ion Physics, Ministry of Education, Peking University, Beijing 100871, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2007-06-20

Abstract

The dry and watersaturated seeds of Arabidopsis thaliana were irradiated by H+ions with 6.5 MeV in atmosphere. The ion fluence used in this experiment was in the range of 4×109 —1×1014 ions/cm2. According to the structure of the seed and TRIM simulation， the ions with the energy of 6.5 MeV can penetrate the whole seed. The experiment shows that the fluenceresponse curves for the dry seeds and watersaturated seeds had distinct shoulders and reduced rapidly. The experimental results show that the waterimbibed seeds were more sensitive than the dry seeds and the reason is from free radicals reaction. A model has been constructed, and primely simulates the experiment data.
- survivalcurve,
- watersaturated seed,
- target theory,
- radical,
- arabidopsis
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Contrast of Dry and Watersaturated Arabidopsis Seeds Irradiated by MeV Energy Ions

doi: 10.11804/NuclPhysRev.24.02.129

Key Laboratory of Heavy Ion Physics, Ministry of Education, Peking University, Beijing 100871, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2007-06-20

Key words:

Abstract: The dry and watersaturated seeds of Arabidopsis thaliana were irradiated by H+ions with 6.5 MeV in atmosphere. The ion fluence used in this experiment was in the range of 4×109 —1×1014 ions/cm2. According to the structure of the seed and TRIM simulation， the ions with the energy of 6.5 MeV can penetrate the whole seed. The experiment shows that the fluenceresponse curves for the dry seeds and watersaturated seeds had distinct shoulders and reduced rapidly. The experimental results show that the waterimbibed seeds were more sensitive than the dry seeds and the reason is from free radicals reaction. A model has been constructed, and primely simulates the experiment data.

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