The cell and tissue differentiation connect with PPO and PAL activities of cuttings, in the period of rooting, the PPO activities of callus are increasing. When the root just come out, it’s the highest; thereafter it’s decreasing.
6、PPO、PAL是与细胞和组织分化有关的酶，在根形成过程中PPO活性明显增加，根开始分化延伸时达到最大2.4095mg／g·min，根形成之后降低；而PAL活性则逐渐下降。
参考来源 - 核桃、枣繁殖技术及其理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The expression of VEGF has close relation with tissue differentiation degree.
VEGF表达与组织分化程度有密切关系。
The DNA and protein synthetic rates have relations with the somatic embryo increment and tissue differentiation.
DNA和蛋白质合成速度的变化与体胚的增殖及组织分化相关；
Both healthy plant and pathogen-free plant had not these symptoms, yet there were some different in tissue differentiation of both.
健株和脱病植株地上部营养器官均不存在上述症状，但两者在组织结构分化程度上有所区别。
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