The cross - zero detection of wavelet transform could detect the gradation image sudden change information , at the same time it could be express the characteristic information the original map ( namely image function plants " jump point " ) 小波過零檢測可以很好的檢測到灰度圖像的突變信息,同時可以很好的表示出原圖像灰度跳變(即圖像函數種的“拐點” )的特征信息。
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 進一步的實驗發現pf40基因會影響植物側芽發育的早期,即pf40基因作用在側芽形成與發育的早期。對轉基因谷子的組織切片的分析還表明pf40基因引起不同形式的轉基因谷子的維管組織的發育的差異,轉化正義載體谷子的木質部變多,維管系統增多,而反義或干擾的轉基因谷子的木質部數量變少,木質部分化異常。從轉基因的結果可見pf40基因可以減弱植物的頂端優勢,這種作用是通過改變植物體內激素的含量實現的。