超活性

Result］ The results show that superoxide dismutase activity of Alstroemeria spp. increases firstly and then decreases; catalase activity gradually increases all the time; peroxidase activity decreases firstly and then increases; the content of malondialdehyde increases firstly and then decreases; proline content increased firstly and then decreased.

结果］各处理切花的超氧化物歧化酶活性总体呈先升后降的趋势；过氧化氢酶活性呈上升趋势；过氧化物酶活性先降后升；丙二醛含量先升后降再升；脯氨酸含量先升后降。

The results showed as follow:①Chinese astringent persimmon were climacteric respiration fruit, the respiration climacteric stage occurred at speediness softening stage. Ethylene climacteric stage and respiration climacteric stage were almost occurred at one time.②The activities of EXP, PG, PE, CX all had increased, and EXP increased early with PG, PE, CX in turn in persimmon fruit during ripening and softening.③Concomitancy to fruit softening, ultrastructural changes in the mesocarp tissue were occurred at speediness softening stage, showed as disaggregation of middle layer of cell wall, appearance of fibre-like structures, disorganization of chloroplast and distortion of some mitochondria.

研究结果显示：①中国涩柿属呼吸跃变型果实，在其快速软化期出现呼吸跃变；乙烯跃变与呼吸跃变几乎同期出现；②在成熟软化过程中，EXP、PG、PE、CX的活性均有上升，EXP活性上升最早，随后依次是PG和PE、CX；PG活性上升幅度最大；③伴随果实软化，果肉组织超微结构在快速软化期中胶层解体、丝状体出现，叶绿体解体、部分线粒体变形；④1-MCP可延缓柿果实硬度下降，常温下延长保硬期5-7天。

Effects of water stress on the level of reactive oxygen speciesand activities of antioxidant enzymes in the leaves of wheat(Triticum durum Desf.) seedlings were investigated.Water stress resulted in significant increase in the contents of O-.2,MDA and the activities of superoxide dismutase and ascorbate peroxidase in wheat leaves.However,the activities of glutathione reductase,catalase and the content of H2O2 were not changed obviously under water stress.

分析了水分胁迫对小麦幼苗叶片中活性氧水平和抗氧化酶活性的影响，结果发现，水分胁迫能够显著提高超氧阴离子(O-2·)和丙二醛的含量及超氧化物歧化酶和抗坏血酸过氧化物酶的活性，而过氧化氢(H2O2)的含量及过氧化氢酶和谷胱甘肽还原酶的活性变化不明显。

MDA content, cell division , he activities of NR, CAT, POD and SOD of Pistia sagittifolia and Myriophyllum Spicatum with heavy metal,s ion concentration to appear a trend of ascending firstly and desending secondly . This trend explains that Pistia sagittifolia and Myriophyllum Spicatum on the Toxic Effects have similarities under handing the single Pb2+ and Hg2+. As the range of the concentration which each index is arriving at the maximum is different, this also indicates that there are some differences of the Toxic Effects between Pistia sagittifolia and Myriophyllum Spicatum under handing the single Pb2+ and Hg2

丙二醛含量、脂膜透性、硝酸还原酶活性、过氧化物酶活性、超氧化物歧化酶活性、过氧化氢酶活性随重金属离子浓度的增加呈先升后降趋势，说明在单一Pb2+和Hg2+处理下大薸和穗状狐尾藻毒害效应具有相似性；但各指标到达最大值的浓度范围不同，又说明单一Pb2+和Hg2+处理下大薸和穗状狐尾藻毒害效应具有差异性。

With the increase of concentration of aqueous extract from Peganum multisectum increased, root vigor, the contents of chlorophyll, soluble protein and nucleic acid in roots and shoots of alfalfa seedlings decreased, while the activities of protease and nuclease, the contents of O2ˉ, H2O2 and malondiadehyde increased, the activities of superoxide dismutase, catalase and peroxidase first increased and then decreased.

幼苗根系活力和叶绿素、可溶性蛋白质、核酸含量随水浸液浓度的提高而降低，蛋白酶和核糖核酸酶活性及超氧阴离子（O2ˉ）、H2O2和丙二醛含量则增加，超氧化物歧化酶、过氧化氢酶和过氧化物酶活性呈先升后降变化。

The reaction mechanism was studied and the proposed methods were applied to the determination of SOD activity.Second, baded on sodium terephthalate trapping HO, an automated spectrofluorimetry for determining HO with flow injection analysis was developed. It was applied to the anti-oxidation determination of maize pollen polysaccharose and natural foods.

一设计合成了两种用于超氧阴离子自由基识别检测的荧光探针——香草醛缩-8-氨基喹啉和2-吡啶甲醛苯并噻唑啉，用普通荧光法和流动注射荧光法对超氧阴离子自由基进行分析测定，研究了反应机理，并将其用于超氧阴离子自由基和超氧化物歧化酶活性的测定。

The above facts indicated that silicon accumulation in the rice leaf sheath inside, the leaf surface and the sclerenchymatous cell, played the physical barrier role, delayed the hypha of sheath blight expansion.5、Analysing the physiological and biochemical mechanism of the resistance to rice sheath blight improved by silicon application in several respects.(1) After being inoculated with R.solani, O2 and POD activities disordered, CAT activities obviously declined. O2 producingvelocity in 91SP\'s leaves and leaf sheaths of Si+ rice plants were lower than those of Siriceplants, MDA content in leaves and leaf sheaths of Si+ rice plants were lower thanthose of Si- rice plants significantly in three days after inoculating, SOD、POD、CATactivities in leaf sheaths of Si+ rice plants were higher than those of Si- rice plantssignificantly in one day after inoculating, SOD、POD、CAT activities in leaves ofSi-treatment were higher than those of Si- rice plants significantly in three days afterinoculating. O2 producing velocity and MDA content in Lemont\'s leaves and leafsheaths of Si+ rice plants were lower than those of Si- rice plants significantly afterinoculating, and SOD、POD、CAT activities of Si+ rice plants were higher than those ofSi- rice plants significantly.

说明硅在水稻叶鞘内侧、叶表和厚壁细胞积累，起到了物理屏障的作用，延缓了纹枯病菌的扩展。5、阐明了施硅增强水稻抗纹枯病的生理生化机制(1)接种纹枯病菌后，两个水稻品种91SP和Lemont的叶鞘和叶片超氧阴离子自由基O2性紊乱，CAT活性明显下降；抗病品种91SP叶鞘和叶片施硅处理的O2产生速率小于缺硅处理，叶鞘和叶片MDA含量在接种第3 d后显著低于缺硅处理，叶鞘SOD、POD、CAT活性在接种1 d后一直显著高于缺硅处理，叶片SOD、POD、CAT活性在接种3 d后显著高于缺硅处理；感病品种Lemont叶鞘和叶片施硅处理的O2产生速率、MDA含量始终显著小于缺硅处理，SOD、POD、CAT活性始终显著大于缺硅处理。

The results showed that the activities of catalase, ascorbate peroxidase, peroxidase and dehydroascorbate in apoplast of cucumber leaf inoculated with Sphaerotheca fuliginea were significantly increased, but the activities of superoxide dismutase was obviously decreased; Silicon can remarkably increase the activities of APX, SOD, POD and DHAR and decrease the activity of CAT.

结果表明，诱导接种后，质外体中过氧化氢酶、抗坏血酸过氧化物酶、过氧化物酶及脱氢抗坏血酸还原酶活性显著升高，超氧化物歧化酶活性明显降低；加硅显著提高了APX， SOD， POD和DHAR的活性，降低了CAT活性。

Some products such as: diisobutyl phthalate, cyclohexylmethyl tridecyl oxalate and 2-isopropylcyclohexanol that have not been reported in the directly oxidation of alkane by traditional method have been obtained, and all the products are used in fuel, leather, textiles, cosmetics and so on.(3) Metal-promoted superacids SO_4~(2-)/SnO_2-M_XO_Y (M= Ce, Co, V, Mo, Ti), which were highly active for this reactions, were investigated in order to improve its acid sites activity, selectivity and stability.

这一在常温常压下以锡系超强酸为催化剂催化氧化碳氢化合(来源：ABCca8cca论文网www.abclunwen.com)物的反应还未见报道：(3)金属改性锡系固体超强酸SO_4~(2-)／SnO_2-M_XO_Y(M=Ce，Co，V，Mo，Ti)在催化氧化反应中表现出很好的催化活性，通过研究表明金属改性剂的加入提高了催化剂酸性，选择性和稳定性；(4)具有光催化活性金属Ti的引入极大的提高了催化剂SO_4~(2-)／SnO_2的比表面积。

Solid super acid catalyst composed of iron oxide as active component has obvious advantages in its simple preparation procedure, good catalytic activity, especialilly much cheaper in comparison with catalysts prepared by other metal oxides such as titanic oxide and zirconia, it\'s worthy of industrialized investigation for these reasons.

以铁氧化物为主要活性组分制备的固体超强酸催化剂具有制备工艺简单、催化活性较好，尤其是相对于钛、锆等其它金属氧化物所制备的固体超强酸催化剂具有价格低廉的突出优点，值得进一步进行工业化的研究。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。