CAJ | 학술논문

以中国春-Synthetic 6x染色体代换系及其亲本为材料，通过测定不同磷处理条件下孕穗期、开花期、灌浆期旗叶的荧光参数，研究低磷胁迫对荧光参数的影响，并对控制荧光参数的相关基因进行染色体定位。结果表明，低磷胁迫导致小麦代换系及其亲本的最大荧光（ Fm）、PSⅡ原初光能转换效率（ Fv/Fm）在测定的各生育时期中明显低于对照，初始荧光（Fo）明显高于对照；Synthetic 6x的3D染色体上可能存在低磷胁迫下调控Fo的有利基因；3B染色体上可能存在调控Fm的有利基因；3B、7D染色体上可能存在调控Fv/Fm的有利基因。
이중국춘-Synthetic 6x염색체대환계급기친본위재료，통과측정불동린처리조건하잉수기、개화기、관장기기협적형광삼수，연구저린협박대형광삼수적영향，병대공제형광삼수적상관기인진행염색체정위。결과표명，저린협박도치소맥대환계급기친본적최대형광（ Fm）、PSⅡ원초광능전환효솔（ Fv/Fm）재측정적각생육시기중명현저우대조，초시형광（Fo）명현고우대조；Synthetic 6x적3D염색체상가능존재저린협박하조공Fo적유리기인；3B염색체상가능존재조공Fm적유리기인；3B、7D염색체상가능존재조공Fv/Fm적유리기인。
Wheat substitution lines between Chinese Spring and Synthetic 6x under the treatments of phosphor-us deficiency stress and phosphorus normal ( control ) in different developing stages were studied to research the effect of phosphorus deficiency stress on fluorescence parameters and locate the gene controlling fluorescence param -eters.The results showed that Fm ,Fv/Fm reduced and Fo increased under phosphorus deficiency stress in different developing stages;The genes regulating Fo might be located on 3D chromosome of Synthetic 6x,and that the genes regulating Fm might be located on 3B chromosome and the genes regulating Fv/Fm might be located on 3B,7D chromosome .