1) nitrate reductase-deficient mutant
硝酸还原酶缺失突变体
1.
The NP-1 gene was transformed into the nitrate reductase-deficient mutant nrm-4 of Chlorella ellipsoidea via electroporation, and the transgenic alga expressed the active NP-1 were obtained.
本研究利用椭圆小球藻(Chlorellaellipsoidea)硝酸还原酶(nitratereductase)缺失突变体为受体,构建了包含NPTII基因和硝酸还原酶基因两个筛选标记的兔防御素蛋白表达载体,采用电激法将目的基因转入椭圆小球藻硝酸还原酶缺失突变体nrm-4,获得了正确表达防御素蛋白的转基因藻,从而表明通过硝酸还原酶作为筛选标记基因并结合硝酸还原酶缺失突变体可作为较好的小球藻生物反应器生产模式。
2) tissue-type plasminogen activator deletion mutant
组织型纤溶酶原激活剂缺失突变体
1.
To compare the efficiency and safety of intravenous thrombolysis by two kinds of tissue-type plasminogen activator deletion mutants in a rabbit model of retinal artery occlusion established by photochemical method.
在兔视网膜动脉阻塞模型上研究两种不同的组织型纤溶酶原激活剂缺失突变体(reteplase,r-PA)的溶栓效果,动态观察视网膜动脉阻塞改变情况、检测血液凝血和纤溶指标以及有无出血并发症等,对比评价两种药物的有效性、安全性。
3) Nitrate reductase
硝酸还原酶
1.
Change of nitrate reductase activity and nitrite content during jiangshui celeries fermentation;
浆水芹菜发酵过程中硝酸还原酶活性和亚硝酸盐含量的变化
2.
Research progress on nitrate reductase of sugar beet;
甜菜硝酸还原酶的研究进展
3.
Effect of different respiratory inhibitors on the nitrate reductase activity;
不同呼吸抑制剂对小麦幼苗根系硝酸还原酶活性的影响
4) nitrate reductase activity
硝酸还原酶
1.
Changes of nitrate reductase activity of dark tobacco and tobacco-specific nitrosamines accumulation during air-curing;
深色晾烟晾制过程中硝酸还原酶的变化及烟草特有亚硝胺的积累
2.
Under high and low nitrogen fertilizer application level,eight wheat cultivated mainly in Henan were selected to study the relationship between nitrate reductase activity(NRA) in flag leaf and root and N efficiency after flowering.
选用近年来在河南省推广的8个小麦品种,在低氮和高氮2个水平下研究了小麦开花后旗叶和根部硝酸还原酶活性与氮效率的关系。
3.
A two years study indicated that nitrate reductase activity(NRA)in vivo sharply decreased after harvest.
两年的试验结果表明,深色晾烟采收晾制后,体内硝酸还原酶活性剧烈下降。
5) NR
硝酸还原酶
1.
The results were as the follows:comparing with the control,the activities of NR,POD,SOD in the leaves at green bud stage,as well as the contents of chlorophyll and soluble protein decreased with the rise of KT content;the flower diameter did not change obviously,stalk diameter was thicker and stalk height was high.
结果表明,处理组叶片中硝酸还原酶(NR)、过氧化物酶(POD)、超氧化物歧化酶(SOD)活力和叶绿素、可溶性蛋白含量均比对照组有不同程度的降低,且随处理浓度的升高依次降低。
2.
Studies were carried out on influences of replacement of 25% NO~-_3-N with NH~+_4-N in nutrient solution(enhanced ammonium nutrition) on tomato growth and activity of such key enzymes in N assimilation and organic acids as nitrate reductase(NR),glutamine synthetase(GS)and phosphoenolpyruvate carboxylase(PEPcase)in tomato leaves and fruits sampled at different developmental stages.
采用砂培实验研究NH4+-N部分代替NO3--N对番茄的影响,结果表明:与全硝处理(100%NO3-)相比较,增铵处理(NH4+∶NO3-=25%∶75%)下番茄鲜果重显著提高;同时叶片内NO3--N含量随增铵而显著降低,叶片与果实内NH4+-N含量及果实的可溶性蛋白含量随增铵而升高;增铵条件抑制了叶片和果实的硝酸还原酶(NR)活性,提高了叶片和果实的磷酸烯醇式丙酮酸羧化酶(PEPcase)活性及叶片谷氨酰胺合成酶(GS)活性,但对果实的谷氨酰胺合成酶(GS)活性影响不大。
3.
The result showed that all the treatments can improve the content of chlorophyll, solar sugar, enhance the activity of NR, and reduce the relative conductivity.
在大田小麦生长和发育期,用浓度为20mg/L的GA3、6-BA、NAA和(10+10)mg/L的GA3+6-BA与GA3+NAA混合溶液喷施小麦叶片,结果表明:以上各处理均可提高叶片中的叶绿素、可溶性糖含量,增强硝酸还原酶的活性,降低相对电导率。
6) Nitrate reductase(NR)
硝酸还原酶
1.
1,1,10,50,100,200,400 mg/L on nitrate reductase(NR) activity in Chlorococcumsp.
研究4种重金属离子(Cu2+、Cd2+、Zn2+、Pb2+)对绿球藻硝酸还原酶(NR)活性的影响。
2.
Results showed that with equal K fertilizer rate,the tendency of nitrate reductase(NR) activity declined at early and middle stage;the decline of invertase(INV) activity shifted to an earlier date;amylase activity increased at later stage and the chlorophyll content of tobacco leaves increased faster at earlier stage.
结果表明:钾肥施用量一定的情况下,随着氮素水平的提高,烟叶硝酸还原酶活性在团棵期、旺长期呈上升趋势,转化酶活性下降时间前移,淀粉酶活性在中后期也增加,Chl含量在叶片生长前期升高速度加快。
补充资料：硝酸盐还原酶
分子式：
CAS号：
性质：催化还原硝酸盐为亚硝酸盐的酶。广泛分布于植物和微生物中。存在于土壤和水环境中的硝酸盐首先被植物和厌氧微生物中的硝酸盐还原酶还原成亚硝酸盐，然后被亚硝酸盐还原酶还原成氨。
CAS号：
性质：催化还原硝酸盐为亚硝酸盐的酶。广泛分布于植物和微生物中。存在于土壤和水环境中的硝酸盐首先被植物和厌氧微生物中的硝酸盐还原酶还原成亚硝酸盐，然后被亚硝酸盐还原酶还原成氨。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条