反复数次,作为对氨的回应,细菌菌落总是会产生渗出粘液。
Again and again, the bacterial colonies oozed slime in response to ammonia.
“我认为下一阶段他们所需做的事情就是找出细菌对于氨作出回应的传感器,”Sperandio又说道。
"I think the next thing they have to do is find the bacterial sensor for ammonia, " Sperandio adds.
正是注意到这点,研究人员推测细菌可能是对氨这种气体分子产生了回应。
Noting this, the experimenters deduced that ammonia was the airborne molecule to which the bacteria were responding.
尽管研究人员并不确定细菌是如何识别出到空气中的氨,但他们已经有了某些假设关于细菌为何能产生粘液以回应挥发性的氨。
Although the researchers are not sure how bacteria detect airborne ammonia, they have some hypotheses about why bacteria produce slime in response to volatile ammonia.
为了进一步确认这一实验结果,研究人员在孔附近充满氨溶液的培养基种培养细菌菌落,发现了同样的粘液梯度。
To further confirm their results, the researchers grew bacterial colonies near wells filled with a solution of ammonia and found the same slime gradient.
他认为,对于身处干燥环境中的细菌来说,分子不易在菌落之间进行扩散,而空气中的氨就可以作为一重要的营养源的指示信息。
He proposes that for bacteria living in a dry environment, where molecules could not easily diffuse between colonies, airborne ammonia could serve as an important indicator of nitrogen sources.
异养细菌可以吃掉未处理污水当中的大部分碳基物质;而自养细菌则会消耗掉氨氮化合物。
Heterotrophic bacteria eat most of the carbon-based materials in raw sewage while autotrophic bacteria consume ammonia and nitrogen compounds.
当细菌死亡时,植物就吸收这种氨。
目的:建立用于氨甲环酸注射液的细菌内毒素检查法,以保证其临床使用的安全性。
Objective: to establish a test method of bacterial endotoxin in tranexamic acid injection, so as to ensure its clinical safety.
不同比例因素制备的固定化硝化细菌小球去除氨氮的效率差别很大。
The efficiency of removing ammonium nitrogen from wastewater is different by immobilized nitrifying bacteria making with different ratio.
建立了一种氨氧化细菌的富集培养方法。
An enrichment technique for ammonia oxidizing bacteria was introduced in this paper.
目的:确立盐酸氨溴索氯化钠注射液细菌内毒素检查方法。
Objective: to establish a method of test for bacteria endotoxin of ambroxol hydrochloride and sodium chloride injection.
针对两种土壤细菌进行的研究表明,这两种菌群都能够发觉空气中氨的味道。
Studies of two species of soil bacteria showed that both colonies could detect the scent of airborne ammonia.
厌氧氨氧化(ANAMMOX)技术因其细菌增长速率缓慢而难以实现工程化。
The engineering application of anaerobic ammonia oxidation (ANAMMOX) technology is difficultly realized due to the very slow growth rate of ANAMMOX bacteria.
虽然这些产氨菌不能有效地降解蛋白质,但它们可以利用其他瘤胃细菌的蛋白酶或肽酶水解的产物小肽与氨基酸。
Although these ammonia producers have limited ability to degrade proteins, they can utilize peptides or amino acids released by the proteases and peptidases of other ruminal bacteria.
从硝化细菌的生长特性,分类,检测,亚硝酸细菌氨单加氧酶等方面概要的叙述了国外在硝化细菌方面研究的进展,并展望了以后的研究和应用。
The advance of study on characterization of growth, classification, detection and amo genes of ammonia oxidizing bacteria is briefly reviewed, and the future utilization is discussed in this paper.
将好氧污泥与厌氧污泥混合培养,在缺氧反应器中培养出了厌氧氨氧化细菌,实现了在缺氧反应器中进一步降解NH3-N的目标。
The mixture of aerobic and anaerobic sludge is used to culture denitrifying bacteria using ammonium as donors in anoxic reactor. The aim of NH3-N degradation in anoxic reactor is achieved.
结论头孢羟氨苄是一种治疗细菌感染性皮肤病安全有效的药物。
Conclusion Cefadroxil is a safe and effective agent in the treatment of bacterial dermatoses.
目的探讨甲氨蝶呤冻干粉针剂进行细菌内毒素检查的可行性。
Objective to explore the feasibility of test for bacterial endotoxins in Methotrexate injection.
絮状污泥中细菌种群数量高于颗粒污泥,且两者的变化趋势与氨氮去除率的变化基本一致。
The bacterial community amount in activated sludge was larger than that in granular sludge, and their change trends were consistent basically with the change of removal rate of ammonia nitrogen.
当氨作为唯一的氨源时,它对细菌的生长无刺激性。
There was little growth apparent when ammonia as a sole nitrogen source.
说明在适宜的工艺条件下,光合细菌具有耐受高浓度的硫酸盐、氨氮和硫化物及高效去除有机污染物的能力。
So, Under optimal operational conditions, PSB is characterized with tolerance to high concentration of sulfate and ammonia and high efficient removal of organic pollutants.
结果盐酸氨溴索葡萄糖注射液用鲎试剂检测细菌内毒素无干扰因素的影响。
Results Endotoxin added to Ambroxol Hydrochloride Glucose Injection was recovered in a quantitative manner showing neither inhibition nor enhancement.
氨基糖苷类抗生素的修饰酶是细菌耐药的主要机制,本文对氨糖类抗生素的修饰酶抑制剂的研究进展作一综述。
Aminoglycoside modifying enzyme is the main resistance mechanism. In this review, some advances in the research of aminoglycoside modifying enzyme inhibitor are summarized.
近年来厌氧氨氧化细菌和氨氧化古菌的发现,提示环境中氨氧化过程及其微生物驱动者的复杂性。
Until recently, the findings of anaerobic oxidizing (anammox) bacteria and ammonia-oxidizing archaea (AOA) indicate that ammonia oxidation and the prokaryotes participate in this process are complex.
目前国内针对氨氧化细菌的研究多集中在活性污泥和污水处理器等方面,鲜少涉及其在土壤特别是酸性土壤中的群落结构分析。
Hitherto, domestic researches on AOB are mainly about active sludge, sewage processor and so on, while investigations of AOB community structure in soils especially acidic soils are seldom reported.
通过硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。
To oxidize (an ammonia compound) into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria.
通过硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。
To oxidize (an ammonia compound) into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria.
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