nitrogenase

英['naɪtrədʒəneɪs] 美[ˌnaɪtrədʒəˌneɪs]

n. [生化]固氮酶

nitramine n.硝胺
nitrate n.硝酸盐
nitration n.用硝酸处理；硝化；硝基置换
nitre n.硝酸钾；硝酸钠=niter(美).
nitric adj.氮的；含氮的；硝石的

Noun:

an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia

1. The NRA was not directly correlated with nitrogenase activity.: 硝酸还原酶活性和根瘤固氮活性之间没有直接关系。

2. Soil drought reduced moisture content and nitrogenase activity of nodules.: 土壤干旱降低田菁根瘤的含水量和固氮活性。

3. Ethylene was used as a probe to detect the N2-binding site in nitrogenase.: 用乙烯为探针研究了固氮酶中n2的键合位。

4. Soil drought reduced moisture content and nitrogenase activity of nodules.: 田菁根瘤的含水量和固氮活性。

5. Reduced nicotinamide nucleotides can function as reductants to nitrogenase.: 还原的烟酰胺核苷酸对固态酶可以起还原剂的作用。

6. Molybdenum is an essential element consisting of nitrogenase enzyme complex.: 钼是豆科作物固氮酶复合体组成的必需元素。

7. The results showed that PA19, PA2 and PK1 strains had high nitrogenase activities.: 经固氮酶活性测定，PA19、PA2和PK1菌株具有较强的固氮酶活性。

8. It creates an enzyme called vanadium nitrogenase, which produces ammonia from nitrogen.: 这些作物都能产生一种名为钒固氮(vanadium nitrogenase)的酶，它具有把氮转变成氨的能力。

9. The photosynthetic rate and excretory ability affected the nitrogenase activity in the rhizosphere.: 水稻的光合作用及报分泌能力影响根际固氮活性。

10. In order to simulated biological nitrogen fixation, a series of studies on nitrogenase are proceeded.: 为了模拟生物固氮，对固氮酶进行了一系列的研究。

11. Deficiency or excess of water in the soil could cause the tremendous decline of the nitrogenase activity.: 土壤水分过多或缺乏，都导致固氮活性极大降低。

12. The level of nitrogenase activity was correlated reciprocally with the content of cell phycocyanin and the light intensity.: 酶活的高低与藻蓝素含量和光照强度成反相关。

13. There was a negative correlation between the nitrogenase activities of nitrogen fixing bacteria in root and that in leaf and stem.: 此外，甘蔗根、茎、叶中固氮菌的固氮酶活性之间关系较为密切，根中固氮菌的固氮酶活性与叶片和茎中的都呈负相关。

14. ATP binding sites are regulatory sites in the nitrogenase and the acetylene reduction active sites are catalytic sites in the nitrogenase.: ATP结合部位是固氮酶的调节部位；乙炔还原活性部位是固氮酶的催化部位；

15. Stable and high efficiency micro-plant interaction is essential to the optimal nitrogenase activity of root-associated nitrogen fixation bacteria.: 联合固氮体系的建立是联合固氮菌发挥高效生物固氮活性的关键要素之一。

16. If the original host plant was replaced by others, both these Frankia 'infective ability and nitrogenase activity in new symbiotic system were lower.: 供试菌随寄主植物的改变，侵染能力及所建立的共生系统固氮活性有所降低。

17. Chromium treatment significantly decreased nodule Numbers, nodule fresh weight, leghemoglobin content and nitrogenase (acetylene reduction) activity per plant or per gram of nodules.: 铬还使单株固氮酶活性(乙炔还原法测定)显著降低，用高浓度铬处理者克瘤固氮活性也显著降低。

18. If low nitrate concentration was applied to Jilin 20, its nodule nitrogenase activity and ureide content were increased in early growth period, but were inhibited in later growth period.: 低浓度硝酸盐在生育前期对吉林20号根瘤固氮酶活性有促进作用，酰脲含量增加，在生育后期有抑制作用。

19. If low nitrate concentration was applied to Jilin 20, its nodule nitrogenase activity and ureide content were increased in early growth period, but were inhibited in later growth period.: 低浓度硝酸盐在生育前期对吉林20号根瘤固氮酶活性有促进作用，酰脲含量增加，在生育后期有抑制作用。

用作名词 (n.)

Bacteroids synthesize nitrogenase, a Mo-Fe protein, which is the enzyme that catalyzes reduction of N2 to ammonia.
类菌体合成固氮酶，一种钼铁蛋白，这种酶能催化氮气还原为氨。
These results indicate that the decrease of nitrogenase activity of nodules under the boron-deficiency stress was not due to carbohydratedeficiency.
这说明了在缺硼条件下，根瘤固氮酶活性的下降并不是由于碳水化合物供应不足所造成的。

nitrogenase的相关资料：

nitrogen nitrogenmeter nitrogen atom nitrogen flow nitrogen load nitrogen dope nitrogen tank nitrogen level nitrogen store nitrogen-lag nitrogen flush

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