查询词典 Nitrosomonas

Result The identification showed that the strain ZW38 belonged to Nitrosomonas and ZL5 belonged to Paracoccus.

结果］经鉴定，菌株ZW38属于亚硝化单胞菌属，菌株ZL5属于副球菌属。

The sludge age in the reactor is large, so that nitrobacteria and nitrosomonas live together. The nitrogen removal via nitrite was possible mainly because the activity of nitrobacteria was inhibited rather than rushed out in number.

反应器内的污泥龄较长，硝酸菌和亚硝酸菌长期共存，发生短程硝化反硝化主要因为硝酸菌的活性受到抑制，而不是数量上受到淘汰。

But the effluent ammonium in the anoxic reactor, where enough NO2 present were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO-2 and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria.

但在足够NO2存在并且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH+4并没有被亚硝化单胞菌以NO2为电子受体氧化为NO-2和N2等化合物而得以去除，可能是因为系统内不存在该类型的亚硝化功能菌。

Results also showed Nitrosomonas sp. was dominant phylotype in the library constructed with 16S rDNA PCR amplification from enrichment culture DNA extracted by direct extraction method.

用SDS-直接法提取的总DNA建立的富集液16S rDNA克隆文库中，氨氧化细菌群落结构较为单一，以亚硝化单胞菌为主。

The results showed that when ammonia nitrogen was concerned, the natural start-up finished accomplished within 9 days after the initially difficult period (20d). The MBR exhibited the stable removal of NH3-N with an average efficiency of 89.4% after the maturity of nitrosomonas group in the bioreactor.

结果表明，对于NH3-N在初始困难阶段(20d)之后，系统的自然启动可以在9d内完成；之后MBR一直保持着稳定的NH3-N去除效率(89.4%)。

One Nitroso-bacteria named N1(GenBank registered number: EU647556) was isolated from the SBBR one-step completely nitrogen removal process, and was identified as Nitrosomonas sp. The characteristics of N1 were studied. Results showed that the optimal temperature and pH of N1 were 8.0 and 30℃respectively and sufficient dissolved oxygen was demanded.

N1(NCBI数据库中注册号为EU647556)，该菌株对氧气需求量存在较严格要求，pH及温度对其氨氧化活性具有明显的影响，最适条件分别为pH8.0和30℃，在氨氮浓度80～800mg/L较宽的底物浓度范围内具有活性，当氨氮浓度高达800mg/L时，其氨氧化活性没有受到明显的抑制。

But the effluent ammonium in the anoxic reactor, where enough NO2 were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO2- and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria. There were two ANAMMOX reaction pathways in the one-stage autotrophic nitrogen removal system. One way was that after part of NH4+ was oxidized to NH2OH under aerobic conditions, NH2OH and NO2- were converted to N2O under anaerobic conditions, at last N2O was further converted to N2 which realized the nitrogen removal; Another way was that at first NO2- was reduced to NH2OH, NH2OH reacted with NH4+ to form N2H4, which was further converted to N2 subsequently, realizing the nitrogen removal.

结果表明：单级自养脱氮系统内6.72%的氨氮是通过吹脱等物化作用去除的，不超过6.02%的氨氮是通过传统硝化反硝化途径去除的，87.26%左右的氨氮是由自养脱氮途径去除的，自养脱氮反应起主要脱氮作用；在足够NO2存在且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH4+并没有被亚硝化单胞菌以NO2为电子受体氧化为NO2-和N2等化合物而得以去除，可能是因为系统内不存在该代谢功能的亚硝化功能菌；单级自养脱氮系统内存在两条ANAMMOX反应途径：其中一条途径即NH4+在好氧条件下被氧化为NH2OH后，生成的NH2OH与系统内的NO2-在缺氧条件下被转化为N2O，N2O则进一步被转化为N2而实现氮的去除；另外一条途径即NO2-首先被还原为NH2OH，生成的NH2OH则与系统内的NH4+反应生成N2H4，N2H4继续被转化为N2而实现氮的去除。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。