Research progress in space plant mutagenetic biological effect and breeding 植物空间诱变的生物效应及其育种研究进展
Study on the optimization of fermentation conditions of a strain fibrinolytic enzyme producing bacillus subtilis 1株诱变的枯草杆菌溶栓酶体内外溶栓性质初探
It was suggested that exogenous dna fragments ( mainly non - coding sequence ) had new mutagenetic mechanism as well as insertional mutagenesis . in t1 and t2 , a number of mutants were obtained 对这种现象的分析表明,外源全dna片段(主要是非编码序列)对转化受体除了插入诱变的作用外,还可能存在一种新的诱变机制。
In this paper , the author summaried the mutational mechanism of low energy ion beam , the applications of it in forest tree , horticulture and flower breeding , and the applications of genetic transformation techniques mediated by low energy ion beam implantation 文中探讨了低能离子束诱变的作用机理、低能离子束诱变技术在林木和园艺花卉育种中的应用以及离子束介导的遗传转化的应用。
Lastly , the rapd method make the effects of the ion beam irradiation induced the arabidopsis thaliana dna clear . and in the molecule level explain the results of the different doses act on the arabidopsis thaliana dna and the molecule mechanisms 利用rapd方法揭示了离子注入对拟南芥dna多态性的影响,并在分子水平上揭示了辐照的不同剂量对拟南芥遗传多态性的影响,阐明了离子诱变的分子机制。
By using arabidopsis thaliana as material , the study had been focused on the ion beam implantation - induced effects and the changes of the configuration . with the rapd method and the analysis of the pod , the mechanism in molecular biology and physiology were stated 以拟南芥为对象做离子注入的物理诱变,观测记载了离子束注入后供试材料的形态性状变化,利用rapd方法探讨了引起形态性状诱变的分子机理,结合同工酶分析结果,分析了离子束辐照引起的生理诱变效应。
Idcntification of an arabidopsis mutaut cex1 exhibits constant accumulation ofjasmonatc - regulated atvsp thi2 . 1 and pdf1 . 2 . from 80 , 000 arabidopsis m2 secdlings , two mutants cex1 - 1 and cex1 ( 2 were identified . when grown on ms medium they exhibited stunt growth phenotype similar to the wild type plants grown on the medium with methyl jasmonate I和pdfi , 2基因的拟南芥突变体的分离从80000ems诱变的mz幼苗中,筛选在ms培养基上生长个体较小,根较短,表型类似野生型拟南芥在含有茉莉素的培养基上生长表型的突变体,获得27个入选突变体。