查询词典 fixation of nitrogen

In this paper,the research history and status were summarized.The processes of soil nitrogen input,interior transformation and output,including litter return,fertilization,atmosphere desposition,ammonification nitrogen fixation,ammonification,nitrification,denitrification,plant uptake,NH 3 volatilization and NO 3- leaching,were introduced.Finally,the tendency of study on soil nitrogen...

本文综述了森林土壤氮素转化与循环的研究历程和现状；介绍了凋落物的归还、施肥、大气沉降、自生固氮、氨化、硝化、反硝化、植物吸收、NH3 的挥发、NO3 -淋溶等土壤氮素输入、转化和输出的途径和过程；最后从研究目标、研究方法、研究对象和研究内容 4个方面归纳了森林土壤氮素转化与循环的发展趋势。

"Like most other cyanobacteria, nostocs contain two pigment s and are capable of nitrogen fixation."

与大多数蓝绿藻一样，念珠藻属含有两种色素，并有固定氮的能力。

"Like most other cyanobacteria, nostocs contain two pigments and are capable of nitrogen fixation."

与大多数蓝绿藻一样，念珠藻属含有两种色素，并有固定氮的能力。

Among the blue-green algae are many species of nitrogen fixation.

许多种蓝藻有固氮的能力。

Mycorhizae perform the function of nitrogen fixation and storage.

菌根起着固氮和贮氮的作用。

Our data also showed that Sm nifA was unable to thoroughly correct the nodulation and nitrogen fixation of SmY.

因此，我们认为Ec nifA基因的产物Ec NifA蛋白缺乏Sm NifA所具有的某些重要功能。

The nodulation and nitrogen fixation of Casuarina-Frankia symbiont varied in response to different water stress.

中度水分胁迫对木麻黄结瘤固氮影响不大，强度水分胁迫使木麻黄的结瘤量、固氮酶活性、固氮量显著降低。

The results show that SO2 gas itself does not influence the growth of ZY-1, however, when the SO2 concentration is higher than 50×10^(-6), ZY-1 growth rate and its CO2 fixation rate are all lowered and the pH of the medium is decreased, so measures must be taken to desulphurize or control pH of medium temporality. The presence of NO with concentrations of lower than 300×10^(-6)did not influence the growth of ZY-1 and its CO2 fixation, NO absorbed in the medium is utilized as a nitrogen source. The influence of dissolved soot dust on ZY-1 growth and its CO2 fixation could be ignored once the soot dust in the stack gases was disposed by the original method.

结果表明，烟气中的SO2是以增加培养液中的SO2^(-2)浓度及降低pH的形式来影响ZY-1的生长及其对CO2的固定的，当其浓度大于50×10^(-6)时，需要进行烟气脱硫或控制培养液pH变化来消除其影响；烟气中NO浓度不高于300×10^(-6)时，不影响ZY-1的生长及其对CO2的固定，反而可作为氮源供ZY-1生长用；对经过一般除尘处理的烟气来说，在利用小球藻ZY-1固定CO2时可不考虑溶解性烟尘的影响。

The discoveries of the hemoglobin genes which encode the hemoglobins related to symbiotic nitrogen fixation in legumes and those not related to symbiotic nitrogen fixation in legumes andnon-legumes including cereals , make reseajrchers have a new look, resulting in two kinds of planthemoglobins: symbiotic and nonsymbiotic hemoglobins.

对这两种血红蛋白的性质、功能、基因结构及表达等方面的研究不仅对共生固氮中植物与微生物的相互关系和固氮工程研究；而且对植物细胞的呼吸代谢和耐涝机理等研究有重要价值。

Outer boxes Genes of interest are shown around the ring as operons for sulfate reduction, carbon fixation via acetyl-CoA synthesis pathway, and nitrogen fixation.

在单股DNA链中，碱基之间的相互作用是一个堆叠在另一个之上，而且在双螺旋中，两个互补单股的碱基对之间的氢键发挥了关键作用。

Certain types of sockets are ''connectionless'', most commonly

某些类型的套接字是无连接的，大多数是UDP协议。

Take it in to his nibs yourself .

你自己拿进去给头儿吧。