element specific activity 中文意思是什麼

element specific activity 解釋
元素放射性比度
  • element : n 1 要素;成分;(構成)部分;分子。2 【化學】元素;【數學】元,素;【機械工程】單元;單體;【無...
  • specific : adj 1 特殊的;特有的;特定的,專門的。2 明確的,具體的。3 【生物學】種的;【細菌】專性的。4 【醫...
  • activity : n. 1. 活動;活躍;動作;活動力;能動性。2. 活性;放射性。3. 機能,功能。4. 〈美國〉機構。5. 〈pl. 〉 活動范圍。
  1. Histochemical gus assay showed that the gus staining was observed only in the mature pollen and germination pollen tube. there is no detectable gus activity in other floral organs, leaves and stems. these results suggested that st901 is a novel pollen - specific gene and the 288bp promoter fragment ( - 297 ? xfrom the translation start codon atg ) is sufficient for pollen - specific expression and os - element regulatory of st901 promoter was possibly concentrated in the region - 297 to - 9

    通過對gus酶活性的組織化學定位分析,表明, st901基因啟動子驅動gus基因特異地在成熟花粉和花粉管中表達, st901基因具有花粉表達特性;且288bp ( - 297至- 9 ) ( atg定為+ 1 )的啟動子區段足以驅動gus基因在花粉中的特異表達, st901基因啟動子的花粉順式表達元件可能位於- 297至- 9之間。
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