1.Nitrate(NO3-) in the environment is absorbed and used by the high plant through following two assimilation steps: the first step is reduction of NO3- to NO2-, catalyzed by NR. Second, Nitrite reductase reduce NO2- to NH4+. And last, NH4+ is used to synthesize animo acid and protein with relative enzymes.
植物吸收利用环境中的NO3-，需经过两个同化反应步骤：首先由硝酸还原酶（Nitrate Reductase, NR）把NO3-还原为亚硝态氮(NO2-)，然后再由亚硝酸还原酶（Nitrite reductase, NiR）把NO2-还原为NH4+，才能进一步掺入氨基酸及蛋白质的合成。
2.Study of Ultraviolet Photolysis of C1ONO_2 (Chlorine Nitrate)by Means of HeI Photoelectron Spectroscopy (UPS)
253.7nm紫外光光解CIONO_2(Chlorine Nitrate)的HeI紫外光电子能谱研究
3.when copper nitrate and cobalt nitrate are impregnated together, copper nitrate and cobalt nitrate ratio is 0.8, and Al_2O_3 (bond) amounts reach 23%, Co and Cu-containing ZSM-5 shows both the greatest capability and intensity.
当铜钴离子共同浸渍、铜钴离子浸渍量比(n(Cu) n(Co))为0 8和Al2O3(粘合剂)用量w(Al2O3)为23%时,改性的ZSM-5分子筛既具有良好的吸附性能又有良好的机械强度。
4.In this thesis, the effects of dicyandiamide (DCD), sodium thiosulfate (STS), 6-benzyladynine (6-BA) and citric acid (CA) applied on the regulation of nitrate accumulation in vegetables such as flowering Chinese cabbage cultivated with bagasse substrates, appropriate quantity and period of DCD applied, a mechanism responsible for the regulation of nitrate accumulation in vegetables were studied to efficiently reduce nitrate accumulation in vegetables.
为了有效控制蔬菜中的硝酸盐积累，本论文以菜心等为材料，研究了施用双氰胺(DCD)、硫代硫酸钠(STS)、6-苄基氨基嘌呤(6-BA)、柠檬酸(CA)等4种化学物质调控甘蔗渣基质培蔬菜的硝酸盐积累的效果、DCD适宜的施用时期和用量、DCD减少硝酸盐积累的机理。
5.Single-dose studies: the dose response relationships of EOB in lowering IOP was apparent. 0.01%, 0.05% EOB produced IOP reduction similar to that of 1% pilocarpine nitrate, IOP reduction responses of 0.25% EOB was significantly greater than that of 1% pilocarpine nitrate. The miotic responses of 0.25%, 0.05, 0.01% EOB were similar to that of 1% pilocarpine nitrate.
结果表明:碱Ⅱ在降眼压方面有明显的剂量反应关系,0.01％、0.05％碱Ⅱ的降眼压幅度与1％毛果芸香碱相似,0.25％碱Ⅱ比1％毛果芸香碱强,碱Ⅱ在缩瞳方面则有一定的剂量反应关系,三种浓度碱Ⅱ的缩瞳作用与1％毛果芸香碱相似。
6.The nano-sized bismuth oxide nitrate hydroxide hydrate [(Bi6O4(OH)4](NO3)6(H2O)4, ) was prepared by a reverse microemulsion method. The kinetic behavior and process of thermal decomposition of bismuth oxide nitrate hydroxide hydrate had been studied by thermal analysis at linearly increasing temperature. The decomposition reaction of nitrite in bismuth oxide nitrate hydroxide hydrate was controlled by 3-dimensional diffusion (sphere. Jander equ.)
利用反相微乳液法制备出了纳米四水羟基硝酸氧铋[Bi6O4(OH)4](NO3)6(H2O)4,并以热分析为手段对纳米[Bi6O4(OH)4](NO3)6(H2O)4的热分解过程和非等温热分解动力学机理进行了研究.
7.3 Among the three different varieties, the in vivo NRA, the ratio of the in vivo to in vitroNRA, the nitrate metabolic pool size (NMPS), the ratio of NMPS to nitrate storage pool size(NSPS) of the blade were all negatively correlated with the nitrate concentration in thepetioles.
3 菠菜不同品种间，叶片内源硝酸还原酶活性、内源/外源硝酸还原酶活性比值、叶片硝态氮代谢库及代谢/贮存库比值与叶柄硝态氮含量呈负相关关系。
8.A pot experiment was carried out to explore the effect of combined application of potass and urea with DCD or different organic materials on nitrate and nitrite accumulation in spinach and the relationship between nitrate content and the activity of nitrate reductase (NR).
采用盆栽试验探讨了钾、尿素与有机物料或双氰胺配施对菠菜体内硝酸盐、亚硝酸盐累积量及与其相关的硝酸还原酶(NR)活性的影响。
9.By using Camptotheca acuminata as experimental materials, the determination of the nitrate reductase activity (NRA) in the leaves of Camptotheca acuminata was discussed by in vivo method. The effects of several main factors of in vivo method such as nitrate induction, 2,4-dinitrophenol (DNP), trichloroacetic acid (TCA) and boiling etc.
以喜树 (Camptothecaacuminata)为材料 ,探讨了用体内法测定其叶片硝酸还原酶活性的若干问题 ,比较分析了硝酸盐诱导、2 ,4 -二硝基苯酚、三氯乙酸及煮沸等因素对硝酸还原酶活性测定结果的影响 ,以寻求体内法测定喜树叶片硝酸还原酶活性的最佳条件。
10.Nitrate content of the treatment that the percent of manure is 1.2% is lower in the same organic manure. Nitrate content of 1.2% corn stalk, chicken manure, pig manure and deer manure is respective 80.22mg/kg, 89.16mg/kg, 100.81mg/kg and 75.19mg/kg.
对硝酸盐含量的影响，在同种有机肥都是以1.2％施用量的番茄硝酸盐含量为最低，1.2％秸秆、鸡粪、猪粪和鹿粪的硝酸盐含量分别为80.22mg/kg，89.16mg/kg，100.81mg/kg和75.19mg/kg。
