【摘要】 选用块茎着色程度不同的6份马铃薯无性系和马铃薯品种早大白为试验材料,分别在种植后45d、60 d、75 d、90 d和105 d时,对其不同器官进行花色苷含量和苯丙氨酸解氨酶(PAL)活性的检测,并对两者的变化趋势进行相关性分析。结果显示:不同供试材料和同一材料的不同器官之间,在整个生育时期中表现为,花色苷含量高的器官PAL活性也较高。相关性分析及回归模型显示,花色苷含量与PAL活性呈现线性正相关,表明PAL是彩色马铃薯花色苷生物合成的关键酶之一。更多还原

【Abstract】 Six lines of different colored potato and ’Zaodabai’ were selected as experimental materials, anthocyanin content and phenylalanine ammonia-lyase(PAL) activity in different organization were determined at 45 d, 60 d, 75 d, 90 d, and 105 d after planting. The correlation of these two indexes was analyzed. The results showed that among different organizations of the same lines or among different clones, where the anthocyanin content was higher, the PAL activity was also higher in entire growing period. The correlation analysis and linear regression models showed that anthocyanin content was positive linear correlated with the activity of PAL. This indicated that PAL is a key enzyme in anthocyanin biosynthesis of color potato.更多还原