查询词典 biosynthesis

The main strains used in industry fermentation are Propionibacterium freudenrechii and Pseudomonas denitrificans. The basic characteristics, biosynthesis and fermentation of vitamin B12 are reviewed.

VB12主要由古生菌和一些真细菌通过有氧或厌氧两种途径合成，工业上主要采用费式丙酸菌Propionibacterium freudenrechii）和脱氮假单胞菌(Pseudomonas denitrificans进行发酵生产。

The extracts of SM, danshensu and protocatechualdehyde, had ablood-lipid regulation by inhibiting cholesterol biosynthesis and increasing CYP7AmRNA expression when they were absorbed to blood.

丹参提取物及其有效成分丹参素和原儿茶醛可经胃肠道吸收入血而抑制内源性胆固醇的生物合成和增加肝细胞CYP7AmRNA表达发挥调脂作用。

In order to understand their mechanisms of blood-lipid regulation, We used the amphotercin B cell model and RT-PCR method to examine the effects of the serum-drugs of SM and FC extracts and their effective monomers, including danshensu, protocatechualdehyde, ursolic acid, quercetin and rutin, on cholesterol biosynthesis in CHO cells and the expressions of CYP7AmRNA and DGATmRNA in BRL cell line.

采用两性霉素B细胞模型和逆转录-聚合酶链反应方法，分别观察丹参和山楂各调脂有效部位以及部分单体(丹参素钠、原儿茶醛、熊果酸、槲皮素和芦丁)对内源性胆固醇合成、CYP7AmRNA和DGATmRNA表达的影响。

The content of intermediates such as protochlorophyll,Mg protoporphyrinand protoporphyrin IXwere reduced and δ aminolevulinc acid and porphohilinogenwere markedly accumulated in albino seedlings of W1,which proved that there was a blockage in the formation of uroporphyrinogen or coproporphyrinogen during Chl biosynthesis under lower temperature.

白化苗中Chl生物合成的中间产物原叶绿素、镁原卟啉、原卟啉IX含量减少，而δ氨基酮戊酸和胆色素原大量积累，证明突变体W1低温下Chl生物合成卟啉原形成部位受阻

Quinic acid.biosynthesis.shikimate pathway.heterogenous enzyme.co-expression.gene disruption.gene integration.

奎尼酸，生物合成，莽草酸途径，异源酶，串联表达，基因破坏，基因整合

Quinolinic acid is an endogenous neurotoxin, that activates the N-methyl-D-aspartate receptor and the biosynthesis of NAD+ precursor.

Quinolinic acid是一种内生性的神经毒素，活化N-methyl-D-aspartate接受器以及在生物合成NAD+的前驱物。

In this paper,functions of key enzymes in the biosynthesis pathway of shikimic acid were analyzed,and the breeding of engineering bacterium by genetic improvements for high yield of shikimic acid was also discussed.

简述了莽草酸生物合成的途径，着重从基因工程角度分析了莽草酸合成过程中的关键酶及其对莽草酸产量的影响，旨在为研究和开发微生物工程菌生产莽草酸提供参考。

Shikimic acid as precursor for biosynthesis of alkaloid and other compounds,has been concerned recently as the key material for the synthesis of tamiflus that is the only one effective clinic drug against avian influenza.

莽草酸是合成生物碱等许多其它物质的前体。近年来，莽草酸作为临床上惟一有效的抗禽流感药物——达啡的原料而倍受关注。

Shikimic acid Biosynthesis pathway Genetic improvement Genetically engineering bacterium

莽草酸；生物合成途径；遗传改造；工程菌

Specializing in natural plant research and development, production, sales and biosynthesis of the high-tech enterprise as a whole, the existing products: ursolic acid, luteolin, kaempferol, shikimic acid, salicylaldehyde glycosides, genistein, nuciferine , matrine, oxymatrine, quercetin ...

专门从事天然植物研究开发，生产，销售和生物合成为一体的高科技企业，现有产品：熊果酸，木犀草素，山奈酚，莽草酸，水杨甙，染料木素，荷叶碱，苦参碱，氧化苦参碱，槲皮素。。。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐