查爾酮 的英文怎麼說
中文拼音 [zhāěrtóng]
查爾酮
英文
chalcone-
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。The production and application of sweetening agents - dihydrochalcone drivatives were reviewed, the variable reassons of affecting sweet - degree and introduce the methods of preparation and synthesization of dihydrochalcone
摘要對二氫查爾酮類甜味劑的制備和應用作了一簡要的概述，介紹了影響此類物質甜度的各個因素和二氫查爾酮衍生物的制備合成方法。Synthesis of hydroxylated chalcones under microwave using tbab in water
羥基查爾酮的合成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The ferrocenylchalcone derivatives were synthesized by the reaction of acetylferrocene and aromatic aldehyde using sodium hydroxide as catalyst in ethanol solvent under microwave irradiation
摘要報道了在微波輻射條件下，以乙醇為溶劑，固體氫氧化鈉為催化劑，使芳醛與乙酰基二茂鐵反應合成二茂鐵基查爾酮。A facile synthesis of ferrocenylchalcones under microwave irradiation
微波輻射下合成二茂鐵基查爾酮Based on the principle of sedimentology and the environmental behavior characteristics of heavy metals, the index of geoaccumulation igeo is used to evaluate heavy metal pollution in sediments in the benxi section of the taizi river. the results show that heavy metal pollution in the sediments are serious. the main heavy metal pollutions are copper, lead, zinc, cadmium and mercury
論述了查爾酮合酶基因chs在植物防禦反應中與病原物的相互關系，探討了與查爾酮合酶因誘導表達相關的順式作用元件和反式作用因子及其dna -蛋白質間的相互作用，闡明其在植物抗病性防禦反應中的重要作用。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。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Synthesis of 3, 3 ' - diaminochalcone
二氨基查爾酮的合成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。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Increase or decrease its expression in plant would change flower color. we cloned the cdna sequence of chs gene from narcissus by rt - pcr and constructed plant expression vector p1301bc by one median clone
本實驗利用rt - pcr方法克隆查爾酮合酶基因（ chs ）的cdna ，通過兩步的克隆，構建在植物中表達chs的植物雙元表達載體p1301b c 。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分享友人