| 1. | Experimental study on the antimutagenic and mutagenic activity of rhizoma menispermi extracts 北豆根提取物抗突变和致突变的实验研究 |
| 2. | The fact that stevioside is glycosylated at position c13 could explain the absence of mutagenicity . the active metabolite of steviol responsible for its mutagenic activity is not known 甜菊糖?的c13位置被糖基化,是没有引起突变的原因。目前,还没有找出引发突变能力的甜菊醇活性代谢物。 |
| 3. | Several mechanistic studies indicated that the structural features necessary for the expression of mutagenic activity include a hydroxyl group at position c13 and an unsaturated bond joining the c16 and c17 carbon atoms of steviol 多项生理机能研究显示,显露基因突变的特性结构位于甜菊醇c13位置的羟基组,以及连结c16和c17碳原子的不饱和链。 |
| 4. | Several mechanistic studies indicated that the structural features necessary for the expression of mutagenic activity include a hydroxyl group at position c13 and an unsaturated bond joining the c16 and c17 carbon atoms of steviol 多项生理机能研究显示,显露基因突变的特性结构位于甜菊醇c13位置的羟基组,以及连结c16和c17碳原子的不饱和链。 |
| 5. | The active metabolite of steviol responsible for its mutagenic activity is not known . while some data suggest that epoxidation may be involved in the metabolic activation of steviol , other data indicate that the active metabolite is not an epoxide 有些数据指出,甜菊醇在代谢活化的过程中,可能牵涉环氧化作用,但其他数据显示,甜菊醇的活性代谢物并不是环氧化物。 |
| 6. | In four kinds of weedicides , the average frequencies of mcn in erythrocytes of loach induced by sofit have a obviously increase and significant different in comparison with other three herbicides , it indicates that sofit has greater mutagenic activity and toxicity than other three herbicides 扫?特对泥鳅红细胞微核的诱变效应最强,扫?特诱发的泥鳅红细胞微核细胞率与氟乐灵和2 -甲- 4氯钠水剂差异极显著,与精禾草克差异显著。 |