麹菌の変異に関する研究(第17報) : C.化学物質による誘発変異について(11)

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It has been found that, among the metallic ions examined, those of copper are so active as to form chelates with almost all amino acids.10^<-3> mol of copper ions formed chelates with the following doses of amino acids : 3×10^<-8> mol of histidine, phenylalanine and aspartic acid as well as asparagine; 5×10^<-3> mol of serine, leucine, isoleucine, threonine, glutamic acid and alanine; 10^<-2> mol of proline, lysine, methionine, cystine, cysteine and taurine.The chelates of histidine, asparagine, aspartic acid, alanine, phenylalanine, leucine and isoleucine added to culture media prevented the strain of Aspergillus oryzae from varying, but those of proline, lysine, methionine, cystine, cysteine and taurine were unable to do so.
公益社団法人日本生物工学会の論文
1958-02-15