著者

山口 彦之 吉田 芳和 田野 茂光 備後 一義 片桐 浩

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.20, no.4, pp.349-356, 1985 (Released:2010-02-25)

参考文献数

23

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Tradescantia (clone KU-7) were grown at three points near a site of nuclear power plants and somatic mutation frequencies in Tradescantia stamen hairs were investigated for three years. The two points are located in the prevailing down-wind sector of the site. Mutational events in stamen hair cells were scored every day from the end of April to October for three years. In parallel with this observation, factors which have been thought to affect mutation induction, such as temperature, humidity, insolation, pollutants, radioactivity in the buds were measured at the three points. The daily exposure and radioactive concentration at three points due to the amount of the radioactive nuclide released from the nuclear power plant were calculated.Mutation frequencies fluctuated daily, but they were estimated rather constant on average at three sites. Increase of radioactivities in the buds or other plant tissues was not detected during this experiment. The daily exposure and radioactive concentration were very low, for example, the ratio of the maximum daily exposure to the doubling dose was less than 1×10-7.It has been definitely shown by this field experiment that radionuclide released from the nuclear power plants can not induce significant mutation of Tradescantia.It was concluded that Tradescantia stamen hair system was not appropriate to monitor the environmental radiation from the power reactor.

著者

山口 彦之

出版者

公益社団法人 応用物理学会

雑誌

応用物理 (ISSN:03698009)

巻号頁・発行日

vol.44, no.4, pp.412-417, 1975-04-10 (Released:2009-02-09)

参考文献数

27

著者

山口 彦之

出版者

公益社団法人 日本アイソトープ協会

雑誌

RADIOISOTOPES (ISSN:00338303)

巻号頁・発行日

vol.10, no.1, pp.165-166, 1961-04-01 (Released:2010-07-21)

参考文献数

4

著者

山口 彦之 吉田 芳和 田野 茂光 備後 一義 片桐 浩

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.20, no.4, pp.349-356, 1985

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<i>Tradescantia</i> (clone KU-7) were grown at three points near a site of nuclear power plants and somatic mutation frequencies in <i>Tradescantia</i> stamen hairs were investigated for three years. The two points are located in the prevailing down-wind sector of the site. Mutational events in stamen hair cells were scored every day from the end of April to October for three years. In parallel with this observation, factors which have been thought to affect mutation induction, such as temperature, humidity, insolation, pollutants, radioactivity in the buds were measured at the three points. The daily exposure and radioactive concentration at three points due to the amount of the radioactive nuclide released from the nuclear power plant were calculated.<br>Mutation frequencies fluctuated daily, but they were estimated rather constant on average at three sites. Increase of radioactivities in the buds or other plant tissues was not detected during this experiment. The daily exposure and radioactive concentration were very low, for example, the ratio of the maximum daily exposure to the doubling dose was less than 1&times;10^-7.<br>It has been definitely shown by this field experiment that radionuclide released from the nuclear power plants can not induce significant mutation of <i>Tradescantia</i>.<br>It was concluded that <i>Tradescantia</i> stamen hair system was not appropriate to monitor the environmental radiation from the power reactor.

著者

山口 彦之

出版者

公益社団法人 日本アイソトープ協会

雑誌

RADIOISOTOPES (ISSN:00338303)

巻号頁・発行日

vol.15, no.5, pp.240-253, 1966-09-15 (Released:2010-07-21)

参考文献数

116

被引用文献数

2 1

著者

山口 彦之

出版者

一般社団法人 日本原子力学会

雑誌

日本原子力学会誌 (ISSN:00047120)

巻号頁・発行日

vol.22, no.3, pp.142-146, 1980-03-30 (Released:2009-03-31)

参考文献数

20

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放射線の影響を研究するために,故アーノルド・H・スパロー博士が開発した,ムラサキツユクサの遺伝学的検出系はいまでは化学変異原の検出に利用されている。雄しべ毛での青色からピンク色への表現型変化は250 mradのような低線量のX線でも起るが, 0.14 ppmという低濃度の1, 2-dibromoethane (ガソリン添加剤)にさらされても生ずる。米国では,移動型モニタリング車が開発されて大気汚染物質の変異原性検出に有効であることが認められている。

著者

山口 彦之

出版者

日本生物環境工学会

雑誌

植物工場 (ISSN:18845312)

巻号頁・発行日

vol.1, no.1, pp.Preface-Preface, 1989 (Released:2011-03-02)

著者

山口 彦之

出版者

日本育種学会

雑誌

育種學雜誌 (ISSN:05363683)

巻号頁・発行日

vol.4, no.1, 1954-08-05