| 1. | It was found that the levels of catechins and proanthocyanins in those subclones accumulating anthocyanins were also raised , and were independent of the activity of phenylalanine ammonia - lyase 发现积累色素的细胞系中,儿茶素与原花色素的形成能力也得到了大幅度提高,且与苯丙氨酸解氨酶活性无关。 |
| 2. | Phenylalanine ammonia - lyase ( pal ) can be induced by many kinds of factors including environment , plant hormone and so on . it has effect on the self - protection of plants . so they have a profound role in plant growth and development 苯丙氨酸解氨酶( pal )是一种诱导酶,许多环境条件以及植物激素对其活性都有不同程度的影响,它与植物抗逆有着极其密切的关系,对植物的生理意义非常重大。 |
| 3. | The biosensor is composed of an ammonia electrode and a phenylalanine ammonia - lyase ( pal ) coated hydrophobic gas - permeable membrane that separates the sample from the electrode internal solution . pal catalyzes phenylalanine to ammonia , which result the potential change of the electrode 将苯丙氨酸解氨酶固定化到氨气敏电极的透气膜上,制备成酶电极,苯丙氨酸解氨酶催化苯丙氨酸产生氨气,引起氨电极电位的变化。 |
| 4. | Abstract : the diferrences in cell growth , composition and levels of anthocyanins and catechins , activity of phenylalanine ammonia - lyase and dynamics of production between anthocyanin accumulating and non - accumulating subclones of tea cultured cells were examined 文摘:从细胞生长、色素和儿茶素次生产物组成与含量、苯丙氨酸解氨酶活性以及产物合成动态分析几方面,研究比较了积累色素与不积累色素的两类茶树培养细胞系之间的差异。 |
| 5. | The study of isoflavones in leaves with the development of seeds showed that the content of isoflavones in leaves was much less than that in seeds . the correlation analysis showed there was marked negative correlation between them two . the activity of phenylalanine ammonia - lyase ( pal ) in different organ before seeding has been studied 种子发育时期,种子中异黄酮含量与叶片中异黄酮的含量呈负相关,达到极显著水平,表明种子发育过程中,叶片中的异黄酮是逐渐向种子中转移的。 |
| 6. | Activity of phenylalanine ammonia - lyase ( pal ) was increased by uv - b radiation , and as a consequence , uv - absorbing compounds were accumulated . it was inferred from our results that the accumulation of uv - absorbing compounds such as flavonoids may be a common response for plants in resistant to enhanced uv - b radiation 在uv - b处理下,紫萍的苯丙氨酸氨基裂解酶( pal )活性上升,并导致其体内吸收uv - b的物质积累,推测类黄酮积累可能是植物抵御uv - b逆境的一个共同效应。 |
| 7. | Activity of alcohol dehydrogenase and phenylalanine ammonia - lyase varied during the blooming of jasmine flower . the non - specific esterase isozymes were isolated by different methods . two enzyme stripes were gained with page ( polyacrylamide gel electrophoresis ) method , while eight stripes were obtained with ief ( isoelectrofocusing ) method 等电聚焦法分离茉莉花酯酶的效果较好,用聚丙烯酰胺常规分离只得到2条酶带,而用等电聚焦法分离茉莉花酯酶同工酶可获得8条比较清晰的酶带。 |