酶的

The enzyme activity in the chrysanthemum alp and couch grass is higher than the one in spruce forest.

总体上看，绣线菊茅草灌丛群落、茅草群落的过氧化氢酶、脲酶和蔗糖酶的酶活性均高于云杉针叶林群落；而云杉针叶林群落的过氧化氢酶活性很高，脲酶和蔗糖酶活性较低。

And the relationship between sex of cucmber and isozyme were analysed. The results indicated that, in terms of numbers of band and activities of peroxidase and superoxide dismutase were significantly induced after treated with silver nitrate and ethephon at 300mg/L and 200 mg/L in cucumber leaves, respectively.

研究表明，300mg·L〓硝酸银和200mg·L〓乙烯利处理黄瓜茎尖后，叶片中过氧化物酶和超氧化物歧化酶两种同工酶的酶谱带数和酶活性均明显受到诱导，而过氧化氢酶几乎不受影响。

The results indicated that Fructose 1,6-bisphosphate aldolase,succinate dehydrogenase ,and hexokinase were very sensitive to temperatures .Citrate-synthase was similar to that of mesophiles in temperature properties .

结果表明Y18细胞中1，6-二磷酸果糖醛缩酶，琥珀酸脱氢酶和己糖激酶对温度很敏感，柠檬酸合成酶的温度效应类似于中温酶，α-酮戊二酸脱氢酶和异柠檬酸脱氢酶存在不同温度特性的同功酶。

The results of isozyme analysis show that the number of isozyme bands of peroxidase, cytochrome oxidase and superoxide dismutase are 13, 11 and 10, respectively. But that of amylase, esterase and malate dehydrogenase are only 4, 7 and 7, respectively.

结果表明：过氧化物酶、细胞色素氧化酶、超氧化物歧化酶等三种酶的同工酶酶谱很丰富，分别有13、11、10条酶带；淀粉酶、酯酶、苹果酸脱氢酶等三种酶的同工酶酶带相对较少，分别为4、7、7条。

Urea-SDS-PAGE showed that no unpurposed propein was found after ConA-sepharose chromatography.2. Identification of alliinaseⅠ, alliinaseⅡ Two different alliinase, named alliinaseⅠand alliinaseⅡ, were found in ConA-sepharose chromatography.

尿-SDS-PAGE电泳图显示，经亲和层析纯化后的酶无杂蛋白带。2、酶Ⅰ、酶Ⅱ的鉴定在ConA-Sepharose亲和层析操作中，发现大蒜鳞茎中存在两种不同的蒜氨酸酶：命名为酶Ⅰ、酶Ⅱ，其中酶Ⅱ是主要部分，酶Ⅰ活性较弱。

The infection of Stylosanthes anthracnose resulted in Phenylalanine Ammonial- yase and Polyphenoloxidase and Superoxide Dismutase, activities of these three enzymes were increased in Mineirao firstly, while in CIAT2312, they were not similar as that in Mineirao.

Mineirao柱花草和CIAT2312柱花草在炭疽菌作用下，Mineirao柱花草苯丙氨酸解氨酶、多酚氧化酶、超氧化物岐化酶三种酶的活性都是先升后降，而CIAT2312柱花草这三种酶活性升降起伏不定。

Zymologic analysis showed that the molecular weight of this β-mannanase was approximately 47 kD. The enzyme was stable when pH ranged from 5.0 to 6.5 and could be activated by Na+ and Ba2+. With an optimal temperature of 50°C. Action mode analysis of TLC re-vealed that the enzyme belonged to the endo-β-mannanase family.

酶学性质分析：该酶分子量约为47 kD，酶的最适反应温度为50°C，在pH 5.0~6.5之间该酶的稳定性较好； Na+和Ba2+对该酶有激活作用，用TLC对酶产物分析，表明该酶为内切β-甘露聚糖酶。

Furthermore, the effects of different metallic salts,nitrogen sources,carbon sources,temperature,pH,water content and fermentation time on the enzyme activity and the yield of the acid protease were studied and the results were as follows: both MnCl2 and CuSO4 could activate the protease while other metallic salts inhibited the protease on different levels; addition of 1 % bean flour and 1 % glucose could increase enzyme yield and enzyme activity by 71 % and 31 % respectively; the maximal yield of enzyme was achieved under the conditions of temperature at 40 ℃ and pH as 7.0; water content and fermentation time would also influence enzyme yield on different levels.

不同金属盐对该酶酶活及不同氮源、碳源、温度、pH、含水量以及发酵时间对菌株产酶的影响试验结果表明：MnCl2，CuSO4均对该酶有激活作用，其他金属盐类对该酶有不同程度的抑制作用；添加黄豆粉（1 %）和葡萄糖（1 %）可使菌株产酶酶活分别提高71 %和31 %；培养温度为40 ℃以及培养基起始pH为7.0时产酶最高；含水量和发酵时间对产酶也有不同程度的影响。

Sigma factor is a component of the bacterial RNA polymerase holoenzyme which is composed of RNA core enzyme and Sigma factor.

因子是RNA聚合酶全酶的一个组成成分，RNA聚合酶全酶是由核心酶和σ因子组成。

It suggested that the AEBSF delayed leaf senescence though inhibition the endopeptidase activity and influence the SOD and POD activity.Native PAGE with gelatin as substance in gel showed the activities of isoenzyme 3 and 4 were inhibited partly by AEBSF treatment on leaves.It implies that the two isoenzymes are type of serine endopeptidase and may play an important role in cucumber leaves senescence. Degradation of protein and changes of endopeptidase isoenzymes in cucumber Cucumis sativus L.

活性电泳显示，黄瓜叶片中检测到6条内肽酶同工酶，其中4条(CEP2，3，4，6)为丝氨酸型内肽酶，内肽酶抑制剂AEBSF抑制了叶片中丝氨酸内肽酶同工酶的活性，而ABA使丝氨酸内肽酶CEP2，3，4的活性显著增强，再次暗示了丝氨酸型内肽酶在黄瓜叶片衰老以及叶片Rubisco降解中具有重要作用，而且除了丝氨酸内肽酶外，可能还有其它因素参与了衰老的调控。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。