chalcone 中文意思是什麼

chalcone 解釋
苯基苯乙烯酮
  1. Gene engineering technology is more superior than the cross breeding and directive breeding technology with its short cycle, low cost and high benefit. though traditional breeding technology has been used for a long time. now the direct reports for the changes of the flower color by the chi ( chalcone isomerase ) gene are a few what we known.

    關于花色結構基因查爾酮異構酶chi （ chalconeisomerase ）基因對花色改變的直接報道很少，因此，本論文選用了chi基因為目的基因，以純深紅色和純白色矮牽牛（ petuniahybidavilm . ）為材料，研究了chi基因的共抑制和反義抑制以及表達產物增加對花色改良的作用，並在花色改變植株中首次觀察到花器官變異。
  2. The objectives of this study are to clone the ban fragment of brassica napus and to apply the floral - dip in the transformation of oilseed rape to establish a convenient method for oilseed rape breeding. ban is dfr - like gene in chalcone synthesis pathway functioned as a negative regulator, and has been well studied in arabidopsis thaliana

    為利用轉基因技術創造甘藍型黃籽油菜，本文克隆了與甘藍型油菜（ brassicanapus ）色素生物合成有關的ban基因同源片段，並探索了甘藍型油菜花序浸泡法轉基因新方法。
  3. Synthesis and characterization of schiff bases derived from chalcone and thiosemicarbazide

    查爾酮縮氨基硫脲類希夫堿的合成與表徵
  4. Photophysical properties of two d - - a chalcone dyes

    型查耳酮類染料的光物理性質
  5. Abstract : the phenyl lithium, 2 - methoxy phenyl lithium and 2, 4 - dimethoxy phenyl lithium reacted with the cinnamic acid to produce a corresponding chalcone in 75 %, 56 %, 50 % yield, respectively. 2, 6 - dimethoxyphenyl lithium could not react with cinnamic acid, but reacted with methyl cinnamate to produce 2 ， 6 - dimethoxychalcone

    文摘:苯基鋰、 2 -甲氧基苯基鋰和2 ， 4 -二甲氧苯基鋰分別與肉桂酸反應以75 ， 65 ， 50的收率生成相應的查爾酮； 2 ， 6 -二甲氧基苯基鋰與肉桂酸不發生反應，但能與肉桂酸甲酯反應生成2 ， 6 -二甲氧基查爾酮；類似的還制得了2 ， 4 ， 6 -三甲氧基查爾酮和2 ， 4 ， 4 ， 6 -四甲氧基查爾酮。
  6. The role of chalcone synthase gene in the defense response of higher plants against pathogens

    查爾酮合酶基因在植物防禦反應中的調控作用
  7. Synthesis of chalcone in water under microwave irradiation and phase transfer catalysis

    微波輻射相轉移催化下水相合成查爾酮
  8. Chalcone synthase ( chs ) is a key enzyme in the biosynthesis of all classes of flavonoids

    查爾酮合酶（ chalconesynthase ， chs ）是類黃酮合成途徑中的一個關鍵酶。
  9. Efficient amplification and sequence analysis of chalcone synthase gene from ginkgo biloba by thermal asymmetric interlaced pcr

    方法快速克隆銀杏查爾酮合成酶基因及序列分析
  10. In this research, we constructed the expression vectors, which contain exogenous gene chalcone systhase ( chs ) antisense gene of gerbera hybrida and transformed it into agrobacterium lba4404 through freezing - melting. an efficient regeneration system and transformation system have been estadblished on leaf discs of torenia fournieri lind

    以藍豬耳為主要研究對象，建立了高效的藍豬耳離體再生體系，並以藍豬耳葉片為轉化材料，用帶有目的基因的農桿菌感染建立了藍豬耳的遺傳轉化體系。
  11. The nonlinear properties of the type compound of chalcone have been studied using finite field ( ff ) / pm3 method. the influence of the molecular structures, the type of substituting group and its sites on organic conjugated molecular electronic and nonlinear properties have also been studied for different substituting group and its sites. the results proved that the substiuting group noucd improve obviously the nonlinear properties of the system

    利用有限場ff pm3方法討論了查爾酮類化合物的非線性光學性質，針對不同取代基和取代位置系統分析了分子結構、取代基的類型、取代位置對共軛有機分子電子性質及非線性光學性質的影響結果表明，取代基的引入可明顯改善體系的非線性光學性質
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