xylary造句

• Our results provided direct evidence that pf40 gene play a role in the tissue development , with knockout this gene the lateral buds were not visible . the plant hormones auxin and cytokinin appear to play a major role in controlling this process , therefore , the concertrition of auxin and cytokinin was measured , however , the concentration of the two hormone was variation a little in transgenic plants , but the ratio of the two was more than 5 fold in the pf40 gained function plant than that in wild type . furthermore the pf40 gene effected differentiation of the vascular bundles in different transgenic plants , results showed the pf40 could change both xylary fibers and vessel
  进一步的实验发现pf40基因会影响植物侧芽发育的早期，即pf40基因作用在侧芽形成与发育的早期。对转基因谷子的组织切片的分析还表明pf40基因引起不同形式的转基因谷子的维管组织的发育的差异，转化正义载体谷子的木质部变多，维管系统增多，而反义或干扰的转基因谷子的木质部数量变少，木质部分化异常。从转基因的结果可见pf40基因可以减弱植物的顶端优势，这种作用是通过改变植物体内激素的含量实现的。