谷氨酰胺合成酶

NaCl对水稻谷氨酰胺合成酶活性及同工酶的影响

Effect of NaCl Stress on Activity and Isozymes of Glutamine Synthetase in Rice Plants

苗期水稻在中等氮素浓度水平下，游离氨基酸的含量最低，而谷氨酰胺合成酶活性最高，对CO2变化反应敏感。

Under MN-level , free-amino-acids has the lowest content , but glutamine synthetase has the highest activity , sensitive to the change of CO2 .

盐胁迫对桑树NH4~+同化和谷氨酰胺合成酶活性的影响

Influence of NaCl Stress on NH_4 ~ + Assimilation and Activity of Glutamine Synthetase of Two Mulberry Species

小麦谷氨酰胺合成酶（GS）的器官分布及光照对GS基因表达的影响

Distribution of Glutamine Synthetase ( GS ) in Wheat and Influence of Light on the Expression of GS Gene

不同氮素形态的三个处理的小麦幼苗叶片谷氨酰胺合成酶（GS）活性在处理期间均呈现增加趋势。

The GS activity in leaves of three different nitrogen forms showed a increasing trend during the different nitrogen processing .

谷氨酰胺合成酶与Wnt信号转导通路

Glutamine synthetase and Wnt-signaling

对谷氨酰胺合成酶（GS）活性结果分析表明，随培养基中NH4~+&N所占比例的增加，GS活力增加。当光照强度增加时，GS活力升高。

The results indicated that GS ( glutamine synthetase ) activity increased with the increase of light intensity and the ratio of NH4 + - N.

目的研究二氢叶酸还原酶（DHFR，D）与谷氨酰胺合成酶（GS，G）单基因和二氢叶酸还原酶与谷氨酰胺合成酶（DHFR+GS，DG）双基因筛选扩增系统对外源基因表达的影响。

Objective To study the effect of gene amplification and selection system with DHFR plus GS and DHFR or GS gene on the foreign gene expression .

结果显示：正常视网膜中，谷氨酰胺合成酶免疫组织化学染色主要见于Muller细胞胞体；

The results showed that GS immunoreactivity ( GS-ir ) was mainly localized in the Muller cell bodies in the normal retinas .

谷氨酰胺合成酶参与Rhodopseudomonascapsulata固氮活性的氨瞬间调节

Involvement of glutamine synthetase in short-term regulation of nitrogenase activity by ammonia in Rhodopseudomonas capsulata

不同浓度的NO3~-和NH4~+对小麦根谷氨酰胺合成酶及其相关酶的影响

Influence of different concentrations of no_3 ~ - and nh_4 ~ + on the activity of glutamine synthetase and other relevant enzymes of nitrogen metabolism in Wheat Roots

谷氨酰胺合成酶（glutaminesynthetase，GS）和谷氨酸合成酶（GOGAT）是高等植物中氨同化的关键酶。

Glutamine synthetase ( GS ) and glutamate synthase ( GOGAT ) are crucial and key enzymes for the ammonia assimilation in higher plants .

全脑组织微管相关蛋白2a、谷氨酰胺合成酶和CD31的RTPCR产物均在相应位置出现阳性条带，分离纯化的脑微血管仅CD31阳性。

RT-PCR products of microtube-associated protein 2a , glutamine synthetase and CD31 from brain tissue had positive lanes , but only CD31 had positive lanes from isolated microvessels .

氨通过血脑屏障扩散入脑内，在谷氨酰胺合成酶（glutaminesynthetase，GS）催化下，由三磷酸腺苷供能与谷氨酸在星形胶质细胞中合成谷氨酰胺[1]。

Ammonia permeate through blood brain barrier , diffuse in brain . then under the catalysis of glutamine synthetase ( GS ), energized with adenosine triphosphate , ammonia and glutamate synthesis glutamine in astrocyte .

谷氨酰胺合成酶（GS，glutaminesynthetase；EC6.3.1.2）是生物体内广泛存在的酶，它参与许多生物体的氮和碳代谢。

Glutamine synthetase ( GS , glutamine synthetase ; EC6.3.1.2 ) is an enzyme widespread in vivo , it is involved in many organisms , nitrogen and carbon metabolism .

溶液培养条件下，以三个典型氮效率的茄子基因型及其F1代为材料，研究其在正常供氮和低氮胁迫条件下的氮素吸收总量、硝酸还原酶活性及谷氨酰胺合成酶活性。

Under normal and low nitrogen stress conditions , total uptake N , nitrate reductase activity and glutamine synthetase activity in three typical eggplant genotypes with different nitrogen efficiency and their hybrids were studied under solution condition .

玉米谷氨酰胺合成酶c-DNA导入根癌农杆菌15955

Introduction of Maize Glutamine Synthetase ( MGS ) c DNA into Agrobacterium Tumefaciens

自毒作用下辣椒幼苗全氮、全磷和全钾含量，以及硝酸还原酶（NR）和谷氨酰胺合成酶（GS）活性下降，铵态氮和硝态氮含量增加。

Total nitrogen , total phosphorus and total potassium content , nitrate reductase ( NR ) and glutamine synthetase ( GS ) activities declined under drought stress , while the content of ammonia nitrogen and nitrate nitrogen content increased .

以前的研究表明，高等植物叶绿体谷氨酰胺合成酶（GS2）受光调节，但叶片胞液GS（GS1）和非光合作用组织中的GS很少受光的影响。

The previous studies showed that the expression of chloroplast GS2 is mediated by light but cytosolic GS1 and GS in non photosynthetic tissues of higher plants are little influenced .

Rhodopseudomonascapsulata固氮酶活性对氨的敏感性及谷氨酰胺合成酶（GS）活性的变化在很大程度上受菌龄和氮素营养的影响。

Both sensitivity of nitrogenase in response to NH_4 ~ + and the level of glutamine synthetase ( GS ) activity depend upon either the culture age or the N-nutrient states of Rhodopseudomonas capsulata .

目的探讨大肠杆菌谷氨酰胺合成酶基因上游增强子样序列（BELE）有无严格的启动子选择性。

Objective To investigate if a bacterial enhancer-like element ( BELE ) in the upstream region of Escherichia coli gln Ap2 gene had strict promoter selectivity .

抽穗后15~20d是籽粒谷氨酰胺合成酶活性与味度值、RVA谱特性间的相关性质发生变化的转折时期。

The duration from 15 d to 20 d after heading was the breakthrough stage at which the correlative nature varied between the activity of glutamine synthetase in rice grain and taste meter value and RVA properties .

测定了不同温度（32℃和23℃）培养下水稻幼苗根和叶的谷氨酰胺合成酶（GS）同工酶以及依赖于NADH的谷氨酸合酶（NADH-GOGAT）的活性变化。

We compared the activity of Glutamine Synthetase ( GS ) and NADH-Glutamate Synthase ( NADH-GOGAT ) from roots and leaves of rice plants cultured under different temperature C32 ℃ and 23 ℃) , respectively .

用组织印迹法、Northern分子杂交、DEAE-纤维素柱层析技术、酶活性测定以及抑制剂等研究了小麦幼苗各器官谷氨酰胺合成酶（GS）活性的变化和光对GS活性及GS-mRNA的影响。

The activityes of GS from the different organs of wheat seedlings and influence of light on GS and GS-mRNA have been studied by the employment of TPH , Northern blot , DEAE-celluose columns chromatography , enzyme activity assay and inhibitor .

结果表明，氮同化关键酶硝酸还原酶（NR）、谷氨酰胺合成酶（GS）活性同Ca2+/CaM依赖性蛋白激酶（Ca2+/CaMPK）活性之间存在明显的相关性。

The results showed that there was significant correlation between the key enzymes of nitrogen assimilation ( nitrate reductase , NR ; glutamine synthetase , GS ) and Ca 2 + / CaM dependent protein kinase ( Ca 2 + / CaM PK ) .

Pup是原核生物中第一个蛋白共价修饰蛋白的例子。与泛素不同，Pup利用脱酰胺酶和谷氨酰胺合成酶参与共价连接并且拥有一个无序的结构。

In prokaryotes , the first example of a protein covalently attached to target proteins is Pup , which is distinct from ubiquitination in its use of deamidase and glutamine synthetase-like ligase reactions for conjugation and its disordered structure .

目的：通过检测急性眼高压后大鼠视网膜谷氨酸/天冬氨酸转运体（GLAST）和谷氨酰胺合成酶（GS）的表达变化，探讨急性青光眼视网膜节细胞（RGCs）损伤的可能机制。

Objective : To investigate the possible mechanism of retinal ganglion cells ( RGCs ) injury of acute glaucoma through detecting expression of glutamate / asparate transporter ( GLAST ) and glutamine synthetase ( GS ) in acute intraocular hypertensive rat retina .

抽穗15d以前蛋白质含量高的品种谷氨酰胺合成酶活性大于蛋白质含量低的品种，而以后与之相反；

The 15th day after heading was a turning point , before which the enzymatic activities of inferior varieties with high protein content were higher than those of superior varieties with low protein content and after which they were reverse .

叶片和根中硝酸还原酶活性与相应器官中的NO-3N含量相关，叶片中谷氨酰胺合成酶（GS）活性在EGTA处理后明显下降，根中GS活性变化不显著。

The activities of nitrate reductase ( NR ) in leaf and root were basically related to the content of nitrate in the relevant organs , the glutamine synthetase ( GS ) activity in leaf was decreased significantly under EGTA treatment , but the GS activity changed weakly in root .

适宜的施氮量有利于提高硝酸还原酶、蔗糖磷酸合成酶和谷氨酰胺合成酶的活性，促进氮代谢的适宜氮肥用量为300kg·hm-2，有利于氮素的吸收积累。

Proper nitrogen application could increase the activity of nitrate reductase 、 sucrose phosphate synthase and glutamine synthetase . The proper nitrogen application to promote nitrogen metabolism is 300 kg · hm-2 , it also could promote the assimilation and accumulation of nitrogen .