@article{oai:sucra.repo.nii.ac.jp:00013822,
 author = {Xiao, Ling, Zhi and 市川, 定夫},
 issue = {3},
 journal = {GENES & GENETIC SYSTEMS},
 month = {},
 note = {Mutagenic interaction between 1,2-dibromoethane (EDB) and X rays was studied in the stamen hairs of Tradescantia clone BNL 4430, a blue/pink heterozygote. The young inflorescence-bearing shoots with roots of this clone cultivated in a nutrient solution circulating growth chamber were used as the tester plants. EDB is a promutagen and also a bifunctional alkylating agent with a high Swain-Scott substrate constant, but is thought to react probably via SN1 mechanism. After confirming the dose-dependent mutagenicities of aqueous solutions of EDB for the first time in Tradescantia stamen hairs, a combined treatment with EDB and X rays was conducted, exposing acutely to 578 mGy X rays at the midpoint of 66.5 mill EDB treatment for 4 h. The induced somatic mutation frequency determined after the combined treatment was significantly higher (at 0.1% level) than that expected from the additive effects of EDB and X rays, showing that EDB and X rays acted obviously synergistically. The confirmation of the mutagenic synergism between EDB and X rays is reported here for the first time, although a likelihood of synergistic effects of EDB with H-3 beta rays has been suggested earlier., text, application/pdf},
 pages = {143--147},
 title = {Mutagenic synergism detected between 1,2-dibromoethane and X rays in the stamen hairs of Tradescantia clone BNL 4430},
 volume = {73},
 year = {1998},
 yomi = {イチカワ, サダオ}
}