过氧化氢酶

The mount of germ and fungus quantity in soil are remarkably increased for the continuous cropping about 5 years, puts the trichobacteria quantity always change tendency to reduce;The edaphon total quantity, the bacterium quantity change reduces generally above the continuous cropping 5 years and below 5 years (including 5 years) the change are not obvious;In the nitrogen physiology group by ammoniates the bacterium primarily and the quantity changes are not very big;The nitrifying bacteria quantity is lower than the comparison (non- continuous cropping), the quantity of denitrifying bacteria is opposite;The alkalinity phosphatase, the urease, invertin activeness have a closed relations with the continuous cropping when it will increase less than 5 years or decrease in more than 5 years. The relation between catalase activeness and the continuous cropping is not very big. The reduction of the invertin activeness, the alkalinity phosphatase, urease activeness have slightly elevates, catalase activeness have no the regular changes.

表现为连作条件下土壤真菌数量显著增大，放线菌数量总的变化趋势降低；土壤微生物总量、细菌数量变化在连作5年以上普遍降低，5年以下(包括5年)则变化差异不明显；氮素生理群中以氨化细菌为主，但数量变化不大；硝化细菌数量低于对照组，反硝化细菌数量则相反：多酚氧化酶、转化酶活性在5年之前逐渐上升，5年之后逐渐下降，，脲酶活性随着连作年限增加持续上升，过氧化氢酶活性、碱性磷酸酶活性变化无规律。

The physiological and biochemical resistant mechanism of tea cultivars to tea brown blight caused by Guignardia camelliae. Making use of the mensuration of spectrophotometric analysis to study the enzyme activity of Peroxidas, Polyphenol Oxidas, Catalas, Phenylalamine Ammenia-lyase. The result showed that there was definite difference to the metabolic rule of defence enzymes activity in the annual leaf tissue of the resistant and susceptible cultivars after infecting.

茶树抗云纹叶枯病的生理生化机理研究利用分光光度计对茶树叶片中过氧化物酶、多酚氧化酶、过氧化氢酶，苯丙氨酸解氨酶的活性进行了测定分析，结果表明：感染茶云纹叶枯病菌前后，抗病品种和感病品种当年生成叶中防御酶活性变化规律存在一定的差异。

Therewas a significant characteristic of the vertical distribution of soil enzyme activity,the relationship analysis indicated that there was a significant positive relationshipbetween the catalase activity and OM,and total N,and effective P、K,and ex-changible Mg,there was a negative relationship between the catalase activity andBase Situatiou percentage,and Total Contents of Base;the activity of the polyphe-nol oxidase was positively related with OM,and negatively related with total N andexchangible Ca clearly;The urease activity decreased with CPR increasing,and thechange of the former two kinds of soil enzyme actirity was not significantly withCPR increasing,It is possible to be related with maned disturbance frequently.

随着代次增加，有机质和交换性Ca下降明显；土壤的CEC和交换性酸分别下降了8.8—16.1%和6.8—18.5%，因此，其养分总量亦逐代降低，其中有机质下降幅度最大；土壤酶的活性具有明显的垂直分布特征，相关分析表明，过氧化氢酶活性与土壤OM、全N、有效P、K和交换性Mg有极显著的正相关，而与盐基总量、盐基饱和度呈明显的负相关。多酚氧化酶活性与OM呈显著负相关，与全N、交换性Ca有显著相关。脲酶活性则有随连栽代次增加而有下降趋势，前两种酶在代次之间变化不明显，可能与频繁的土壤干扰有关。

The results show that compared with the uninoculated pear fruit, the PPO activity of the pear fruit inoculated by the pathogen markedly increase in 48 hours after the inoculating treatment, the PAL activity is on the rise during the 120 hours after inoculation, POD and CAT activities reach a peak at 72h after inoculation, and the SOD activity of the inoculated treatment is also obviously higher than that of the contrast, which suggests that those enzymes are closely-related to pear fruit against Botryosphaeria berengriana f.sp.

结果表明：鸭梨果实中多酚氧化酶活性在接种轮纹病菌48 h内显著高于对照，苯丙氨酸解胺酶活性在接种120 h内一直呈上升趋势，过氧化物酶和过氧化氢酶活性在接种后72 h出现活性高峰，超氧化物歧化酶活性在接种后120 h内也显著高于对照，说明这些酶对鸭梨果实抵抗轮纹病密切相关。

The activities of superoxide dismutase, catalase, peroxidase and malonyldialdehyde were determined in hepatopancreas in oriental weatherfish Misgurnus anguillicaudatus exposed to different concentrations 0.025mg Cd(Ⅱ/L, 0.25 mg Cd/L and 2.5 mg Cd/L of Cadmium chloride Cd(Ⅱ to evaluate the effects of cadmium stress on xanthine oxidase and antionxidant enzyme activities.

研究了不同浓度的cd对泥鳅肝脏内抗氧化酶包括超氧化物岐化酶、过氧化氢酶、过氧化物酶活性的影响以及对脂质过氧化指标－丙二醛含量的影响，探讨了在Cd胁迫下，泥鳅肝组织内抗氧化酶活性以及脂质过氧化的变化趋势及其关系。

Correlation coefficients between ammonifying bacteria and urease, polyphenol oxidase, bacteria and phosphatase, total microbe quantity were significant at 0.05 levels, and correlation coefficients between aromatic decomposing bacteria and urease, catalase, phosphatase and total microbe quantity were significant at 0.01 levels.

相关分析表明，氨化细菌与脉酶、多酚氧化酶均呈显著正相关；芳香族分解菌与脉酶、过氧化氢酶呈极显著正相关；细菌、微生物总量分别与磷酸酶呈显著、极显著正相关。

Activities of polyphenoloxidase, true choline esterase, glutathione S transferase, superoxide dismutase and catalase of the beet armyworm, Spodoptera exigua, were tested in vivo in a relatively susceptible population kept in the laboratory and a population collected from vegetable field in Wuhan.

用一个采自武汉地区的甜菜夜蛾田间种群和一个相对敏感种群，比较了甜菜夜蛾的表皮酚氧化酶、乙酰胆碱酯酶、谷胱甘肽S转移酶、超氧化物歧化酶和过氧化氢酶酶活力差异。

(Times New Roman小四号,加粗,顶格)Using the vertical polyacrylamide gel electophoresis, the differentiation of peroxide, catalase and esterase isoenzyme from roots, caudexes and leaves of three wild buckwheat were analyzed.

(宋体小四号，加粗，顶格)采用垂直板聚丙烯酰胺凝胶电泳对三份野生荞麦根，茎和叶的过氧化物酶，过氧化氢酶和酯酶的同工酶进行了酶谱分析。

The soil microorganisms quantities, microbial diversity index, microbial biomass carbon and the cellulose decomposition strength significantly reduced with increasing of heavy metal concentration, but the soil basal respiration rate were positively enhanced. The soil urease, alkaline phosphatase and polyphenol oxidase in the lead zinc mining area were sensitive. The invertase and catalase were not obvious inhibited to the heavy metals.

该矿区土壤微生物区系组成和微生物活性显著不同于临近非矿区土壤，随着重金属含量的增加，土壤微生物数量、微生物多样性指数、微生物生物量碳以及纤维素分解强度均显著降低，但土壤基础呼吸却明显升高；土壤脲酶、碱性磷酸酶、多酚氧化酶对铅锌矿较为敏感，而蔗糖酶和过氧化氢酶受到的抑制作用不明显。

In order to investigate effects of bound residues of metsulfuron-methyl on the activities of soil enzymes, the activities of urease, acid phosphatase, catalase, and sucrase were determined in Huangfentuspiked with bound residues of metsulfuron-methyl for 98 days.

为了研究甲磺隆结合残留对土壤酶活性的影响，将黄粉土经甲磺隆结合残留处理98天，检测土壤脲酶、酸性磷酸酶、过氧化氢酶和蔗糖酶活性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。