幾丁化 的英文怎麼說
中文拼音 [jīdīnghuà]
幾丁化
英文
chitinization
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幾 :
幾代詞1. (多少, 用於詢問數量和時間) how many 2. (表示不定的少數目) a few; several; some
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The degradation of chitin by chitinase was vital step in the life cycle of insects because insects undergo periodic ecdysis and metamorphosis
幾丁質代謝隨昆蟲不同生長發育階段而變
化並保持相對的穩定,對昆蟲的正常的生長發育是至關重要的。
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Martin trow is one of the most influential educators of the 20th century who ever wrote the great number of books on higher education massification. owing to his impressive studying in columbia university, owing to his investigation on the higher education in the graduate school of public policy at the university of california, berkeley
馬
丁?特羅( martintrow1926 )是美國當代著名的教育社會學家,他
幾乎將全部的心血傾注於世界高等教育大眾
化理論的研究,為世界高等教育理論做出了非凡的貢獻。
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The engineering bacterium which carried bcih i - chi and i - glu cdna was pcg - ii. two methods of agrobacterium - mediated and gene gun were used to transformate long ya lillium. the results of pcr analysis and southern dot blotting hybridization demonstrated that the chi a nd glu cdna have been intergrated into host genome. at the same time ; compared agrabactenum - mediated method with gene gun method, the transformation frequency of the former was 16. 7 %, while the latter was 50 %, so gene gun transformation method was suitable for long ya liiliwn
用攜帶有
幾丁質酶基因和- 1 、 3葡聚糖酶基因的工程菌,通過農桿菌介導法和基因槍轉
化法轉
化龍牙百合,經pcr和點雜交檢測證明外源基因已經整合到植物染色體中。同時對農桿菌介導法和基因槍法進行比較,發現農桿菌介導法的轉
化率為16 . 7 ,基因槍法的轉
化率為50 ,因此可能基因槍轉
化法更適于龍牙百合的遺傳轉
化。
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The hybrid density functional theory at ab initio level was applied to study solvent effects on geometrical structures, charge distribution, and solvatochromic shifts of 4 - nitro - buta - 1, 3 - dienylamine molecule
摘要在從頭計算的水平上,利用雜
化密度泛函理論研究了溶劑對4 -硝基1 , 3 -
丁二烯基胺分子的
幾何結構、分子內的電荷分佈和電荷轉移態的能量漂移的影響。
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Purification and characterization of a chitinase from endophytic chaetomium spirale nd
35
幾丁質酶的純
化和性質
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With the turkish conquest of constantinople in 1453, hagia sophia became a mosque, and in subsequent years all the interior figure mosaics were obscured under coatings of plaster and painted ornament ; most of the christian symbols elsewhere were obliterated
土耳其於1453年征服了君士坦
丁堡,聖索菲婭大教堂成為了一座清真寺,隨后
幾年所有內部的鑲嵌畫像都被灰泥覆蓋得模糊
化了,還塗上了裝飾物;別處的大部分基督教象徵都被塗去。
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If a spouse suffers from asthma, depression, peptic ulcers, high blood pressure or raised cholesterol levels, the chances are their partner will be afflicted with the same illness. " partners of people with specific diseases are at increased risk of the disease themselves - at least 70 percent increased risk for asthma, depression and peptic ulcer disease, " julia hippisley cox of the university of nottingham in northern england said
英格蘭北部諾
丁漢大學的朱麗葉-希皮斯利-科克斯說: 「某些特定疾病患者的配偶罹患同樣病癥的機率比別的人要高-就哮喘抑鬱癥和消
化性潰瘍這
幾種病來說,其機率要高70 % 。 」
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Chitin ' s partially deacetylated product is chitosan. unlike these polysaccharides, chitooligosaccharide and oligochitosan, which are the oligomer homologs of chitin or chitosan, are soluble and can be satisfactorily utilized
幾丁質部分脫乙酰
化產物是殼聚糖,它們的降解產物為
幾丁寡糖、殼寡糖,具有較好的水溶性,易於分散吸收。
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Latin, the most important member of the italic branch of indo - european, is divided into several historical periods and social dialects and was the most important cultural language of western europe until the end of the 17th century
拉
丁語作為印歐語系義大利語族的最重要的一員,被分為
幾個歷史性階段和社會方言,並且還是直至17世紀未西歐的最重要的文
化語言。
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Zhang xue - kun, tang zhang - lin, chen li et al. effect of partially n - acetylate chitosans to elicit resistance reaction on brassica napus l., agricultural sciences in china, 2002, vol2 ( 3 )
張學昆,唐章林,諶利,李迦納等.脫乙酰
化幾丁質乙酰
化程度對油菜抗性的影響.中國農業科學, 2002 ( 3 )
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Producing plant phytoalexins has been recognized as the primary and dominant routines in defending system in cotton, include terpenoid, proteases and hormones in which many enzymes, such as chitinase, has been proved useful against verti - cillium in several plants, but not their functional mechanism
在棉花抗病反應中以植物抗毒素的合成為主要途徑,包括萜類、酶類和激素類3類
化學物質,其中酶類物質如
幾丁質酶已經在很多植物中被證明具有抗病作用,但是其具體作用途徑仍不清楚。
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Hitooligosaccharide is water soluble chitosan. its chemical name is : 2 - mino -
又稱可溶性甲殼質甲殼胺
幾丁聚糖等,
化學名為
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The three experts from the universities of edinburgh, st andrews and leeds said there had been huge changes in science " s understanding of the psychological and mental abilities of fish in the last few years
三位來自愛
丁堡、聖?安德魯斯和利茲大學的專家說,科學界在最近
幾年裡對魚的心理和心智能力的認識發生了巨大的變
化。
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Cardenas, g., orlando, p., edelio, t., " synthesis and applications of chitosan mercaptanes as heavy metal retention agent ", international journal of biological macromolecules, vol. 28, pp. 167 - 174, ( 2001 )
徐薇如, "
幾丁聚醣/藻酸鈣生物高分子對重金屬吸附行為之研究" ,國立交通大學應用
化學研究所碩士論文, ( 2000 )
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Chi 1 degraded colloidal chitin both endolytically and exolytically with jv - acetylglucosamine, chitobiose and chitotriose as its products while a c - teminal 302 - amino - acid d eleted mutant had its degrading pattern shift to chitobiose, chitotriose and chitotetraose. further research showed a shifting of the minimal length of chitooligosaccharide needed for these two correlated proteins. in the case of full - length chitinase, it was chitotriose while with its truncated form, it turned out to be chitotetraose
進而對chi1和chi1 ~ -做了體外表達、純
化及功能的比較分析,首次揭示了
幾丁質酶潛在的
幾丁結合區對酶作用底物與產物的特異性影響,即chi1 ~ -仍具有較強活性,但其膠體
幾丁質降解產物為
幾丁二、三、四糖。
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But high insolubility restrict its application, so we need to carry on chemical milling to it, carry on the structure and decorate or degrade its strand partly
但是,
幾丁質不溶於水限制了它的應用,往往需要對它進行一些
化學修飾或部分降解以增加其溶解性。
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Screening and purification of neutral protease with chitinase inhibitor activity
具
幾丁質酶抑制活性的中性蛋白酶的篩選與純
化
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Genoraic dna of b. megaterium was partially digested by restriction enzyme sau3a and was used to establish the genomic library in plasmid pbluscripts. selection for endoglucanase positive clones from transformed e. coli was carried out on the cmc medium. seventy - four clones that showed hydrolysis ability on the cmc plate were obtained
用ecori和sall對含有
幾丁質酶基因的重組質粒tvchi (含
幾丁質酶編碼基因的pmd18一t載體)和穿梭質粒phy300plk進行雙酶切並連接,轉
化e . colidhs 。
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The large - scale expression product is concentrated and desalted by ultra - filter, and the target protein is separated by affinity chromatography with chitin, and then cut by cnbr. the purified product appears evident antibacterial activity with method of agar diffusion
採用優
化的表達條件進行大量發酵,對上清液超濾濃縮脫鹽后,採用
幾丁質基質進行親和層析分離目的蛋白,溴
化氰切割,瓊脂孔穴法測抗菌活性。
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A recombinant expression plasmid was first constructed by inserting the vitreoscilla hemoglobin gene ( vgb ) into the plasmid pchi, which contains the chitinase gene cloned from bacillu circulans c - 2. to study the effect of vhb on cell growth and chitinase production, the expression plasmid was transformed into escherichia coli jm109
為了進一步提高幾丁酶基因在大腸桿菌的表達,將透明顫菌血紅蛋白基因( vgb )插入到幾丁酶基因表達質粒pchi后轉入大腸桿菌jm109中, vgb基因的表達促進了轉化菌的生長和提高了幾丁酶基因的表達,溶氧水平越低,作用越顯著。