Mutation  Effect  of  Streptomyces  kitasatoensis  after  Exposure  to  Heavy  Ions  Radiation

LIU  Jing; CHEN  Ji-hong; Hu  Wei; WANG  Shu-yang; LI Wen-jian; #

doi:10.11804/NuclPhysRev.28.02.215

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Article Navigation > Nuclear Physics Review > 2011 > 28(2): 215-218

LIU Jing, CHEN Ji-hong, Hu Wei, WANG Shu-yang, LI Wen-jian, #. Mutation Effect of Streptomyces kitasatoensis after Exposure to Heavy Ions Radiation[J]. Nuclear Physics Review, 2011, 28(2): 215-218. doi: 10.11804/NuclPhysRev.28.02.215

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LIU Jing, CHEN Ji-hong, Hu Wei, WANG Shu-yang, LI Wen-jian, #. Mutation Effect of Streptomyces kitasatoensis after Exposure to Heavy Ions Radiation[J]. Nuclear Physics Review, 2011, 28(2): 215-218. doi: 10.11804/NuclPhysRev.28.02.215

Mutation Effect of Streptomyces kitasatoensis after Exposure to Heavy Ions Radiation

doi: 10.11804/NuclPhysRev.28.02.215

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2 College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-06-20

Abstract

To define the optimum dose of heavy ion beams for selecting high productive strains， we should study mortality and mutation effects of Streptomyces kitasatoensis irradiated by heavy ion beams in diffe rent doses. In this research， spores of Streptomyces kitasatoensis were irradiated by heavy ion beams with different doses. And survival rate， mortality rate， positive mutation and negative mutation were analyzed statistically. The results showed that high mortality rate appeared from 5 Gy and then the mortality rate curve became gently. Compared the positive and negative mutations in different doses， highest positive mutation was obtained in 40 Gy， while the negative mutation was lower in this dose， and the survival rate was 0.92%. So we defined that optimum dose of heavy ions radiation for Streptomyces kitasatoensis selection was 40 Gy in this experiment.
- heavy ion,
- dose,
- mutation,
- Streptomyces kitasatoensis
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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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Mutation Effect of Streptomyces kitasatoensis after Exposure to Heavy Ions Radiation

doi: 10.11804/NuclPhysRev.28.02.215

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2 College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-06-20

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Abstract: To define the optimum dose of heavy ion beams for selecting high productive strains， we should study mortality and mutation effects of Streptomyces kitasatoensis irradiated by heavy ion beams in diffe rent doses. In this research， spores of Streptomyces kitasatoensis were irradiated by heavy ion beams with different doses. And survival rate， mortality rate， positive mutation and negative mutation were analyzed statistically. The results showed that high mortality rate appeared from 5 Gy and then the mortality rate curve became gently. Compared the positive and negative mutations in different doses， highest positive mutation was obtained in 40 Gy， while the negative mutation was lower in this dose， and the survival rate was 0.92%. So we defined that optimum dose of heavy ions radiation for Streptomyces kitasatoensis selection was 40 Gy in this experiment.

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