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oxygen scavengers
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  氧清除剂
     The result of genes related to salt stress-tolerance indicated that Signaling components, Transcriptional regulators, Stress protein and Reactive oxygen scavengers contained more genes than the others, 4.1%, 1.9%, 3.3%and 0.9% respectively.
     对与耐盐有关基因EST分析结果表明,信号元件、转录调控、应激蛋白和活性氧清除剂所包含的表达的基因比较多,这些基因的表达丰度也较高,分别为4.1%、1.9%、3.3%和0.9%,这说明这四种过程在柽柳抗盐胁迫时起到了重要作用。
短句来源
     Varietal Differences of Photooxidation in Rice and Effects of Active Oxygen Scavengers
     不同水稻品种的光氧化差异及活性氧清除剂的效应
短句来源
     A comparison of senescent in vitro konjacleaves with non—senescent ones indicated that the contents of chlorophylls a and b and protein in thesenescent leaves were significantly lower than those in the non—senescent leaves,MAD accumulationwas 55.13% higher in the senescent leaves,while the active oxygen scavengers(catalase andcaroteinoid)were decreased.
     衰老叶片中叶绿素a、b 和蛋白质含量明显低于正常叶,脂质过氧化产物积累量也较正常叶多55.13%,但衰老叶片中过氧化氢酶和类胡萝卜素等活性氧清除剂减少。
短句来源
     Ameliorative Effects of Exogenous Active Oxygen Scavengers on Waterlogging Injury of Corn Leaves
     外源活性氧清除剂对玉米植株涝害的缓解
短句来源
     Effect of Xanthomonas campestris PV. Oryzae on Activated Oxygen Scavengers in the Seedlings Leaves of Hybrid Rice
     白叶枯病菌对杂交稻幼苗叶片中活性氧清除剂的影响
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  除氧剂
     The composition of the gelling system for high temperature acidifying was as follows:polyethylene oxide gelling agent 0.8%(wt),oxygen scavengers Na2SO3 0.1%(wt) and MnSO4 0.02%(wt),and crosslinker phenol 0.1%(wt).
     确定了可用于高温酸化的胶凝酸体系配方聚氧化乙烯胶凝剂加量(质量分数,下同)为0.8%,除氧剂为0.1%Na2SO3+0.02%MnSO4,苯酚交联剂加量为0.1%,其余为20%盐酸。
短句来源
     Performance of new oxygen scavengers, N,N,N',N' -tetra substituted phenylenediamines
     氮四取代苯二胺新型除氧剂的研究
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  “oxygen scavengers”译为未确定词的双语例句
     The influences of the type of EVA,the content of the oxygen scavengers,temperature and humidity on the oxygen removal properties of the EVA deoxidizer film were investigated.
     本文研究了EVA型号、脱氧剂含量、环境温度和湿度对这种脱氧膜的脱氧性能的影响。
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  oxygen scavengers
The singlet oxygen scavengers ascorbic acid and histidine significantly protected SR Ca2+-ATPase against rose bengal derived activated oxygen species but superoxide dismutase and catalase did not attenuate the inhibition.
      
The Chl-induced release was efficiently inhibited by singlet oxygen scavengers such as dimethylfuran, β-carotene, sodium azide and vitamin B6, and stimulated in D2O or DMSO.
      
Cycloheximide-induced chlorophyll bleaching in light was prevented by some active oxygen scavengers.
      
Heat shock encoding proteins and reactive oxygen scavengers also were identified, but their overall frequency was too low to perform statistical tests.
      
These results revealed that WEB and HWEB are also active as oxygen scavengers and as secondary antioxidants.
      
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Activated oxygen has been proposed to play a role in postischemic cardiac damage. This is supported further by the ability of activated oxygen scavengers to limit myocardial reperfusion injury. This experiment was performed to determine if superoxide dismutase (SOD) infused starting with reperfusion has a beneficial effect on reperfused myocardiun?The isolated perfused rat hearts were subjected to ischemia followed by reperfusion for 45 min. Reperfusion damage was detected by occurrence of ventricular...

Activated oxygen has been proposed to play a role in postischemic cardiac damage. This is supported further by the ability of activated oxygen scavengers to limit myocardial reperfusion injury. This experiment was performed to determine if superoxide dismutase (SOD) infused starting with reperfusion has a beneficial effect on reperfused myocardiun?The isolated perfused rat hearts were subjected to ischemia followed by reperfusion for 45 min. Reperfusion damage was detected by occurrence of ventricular fibrillation, increase production of malondialdehyde, the release of lactate dehydrogenase and the reduction of sarcolemmal ATPase. The extent of reperfusion myocardial injury was significantly less in SOD treated group indicated by the indics mentioned above. The results of this study are in accord with previous concepts that activated oxygen plays a fundamental role in cellular damage resulted from reperfusion. In addition, we demonstrate that the administration of SOD begining at the onset of reperfusion can still be effective, it might be applicable to clinical case.

本实验在大鼠离体心脏灌注模型上,模拟心肌缺血再灌注过程(旷置30分钟,再灌注45分钟),结果发现:再灌注后,心脏频发室颤,组织水肿明显,脂质过氧化终产物丙二醛较正常时显著增加,冠脉流出液中乳酸脱氢酶呈一持续高水平释放,心肌组织ATP酶活性明显下降。再灌注开始后给予超氧化物歧化酶(SOD)。能够减轻以上心肌再灌注性损伤现象。这一结果提示:1)活性氧参与了心肌再灌注损伤现象的发生。2)再灌注开始后给予SOD仍有明显疗效,这为临床上在再灌注开始后应用SOD提供了一定的实验依据。

The effects of superoxide dismutase(SOD) inhibitor and active oxygen scavengers on membrane lipid peroxidation and the activities of SOD and catalase in the leaves of waterlogged corn plants were investigated. Sodium diethyl-dithiocarbamate (DDTC), an inhibitor of SOD and seven kinds of active oxygen scavengers,i, e. 8-hydroxyquinoline (8-HQ) ,diphenylamin(DPA) ,α-toco-pherol (VE),propyl gallate(PG),sodium benzoate(SB) ,mannitol (MT),and ascorbate(ASC) were used to spray over corn plants at the beginning...

The effects of superoxide dismutase(SOD) inhibitor and active oxygen scavengers on membrane lipid peroxidation and the activities of SOD and catalase in the leaves of waterlogged corn plants were investigated. Sodium diethyl-dithiocarbamate (DDTC), an inhibitor of SOD and seven kinds of active oxygen scavengers,i, e. 8-hydroxyquinoline (8-HQ) ,diphenylamin(DPA) ,α-toco-pherol (VE),propyl gallate(PG),sodium benzoate(SB) ,mannitol (MT),and ascorbate(ASC) were used to spray over corn plants at the beginning of waterlogging and once again 12 hours after waterlogging . Waterlogging treatments were done at the 4-leaf stage. Experimental results showed that DDTC inhibited not only the activity of SOD,but also the activity of catalase in corn leaves,thus increasing malondialdehyde (MDA) content greatly in the leaves of waterlogged corn plants. In other experiments,the waterlogged corn plants sprayed with seven kinds of active oxygen scavengers were less injured. The production of membrane lipid peroxidation, as determined by MDA content in the leaves of waterlogged corn plants, were decreased obviously. Further observations found that the SOD activity was increased markedly and the catalase activity was aslo enhanced in the leaves of waterlogged corn plants treated with these scavengers, indicating that active oxygens in plant cells were scavenged by the direct effects and the indirect enzyme reactions of these scavengers. It is suggested that active oxygens play an important role in the course of waterlogging injury. The results provided theoretical evidence that waterlogging injury to corn plants might be lessened by spraying antioxident.

用超氧物歧化酶(SOD)抑制剂喷施玉米苗,使受渍玉米叶片SOD和过氧化氢酶(CAT)活性进一步削弱,叶片膜脂过氧化产物丙二醛(MDA)的积累也随之加剧。应用各类活性氧清除剂喷株,皆能使受渍玉米叶片SOD活性增加,对CAT活性也有所促进,从而减轻由涝渍逆境引起的膜脂过氧化作用,增强对土壤淹水的抗性。试验结果为活性氧参与玉米涝渍伤害的推断,提供了正反两方面的证据,也为应用化学物质缓解玉米涝害的可能性提供了理论依据。

KT treatments of konjac(Amorphallus rivieri Durieu)leaf discs in vitro slowed down their senescence,the speed of decline in the contents of chlorophyll,protein and RNA being lower than that in thecontrol(H_2O treatment).In contrast,ABA speeded up the senescence of the leaf discs in vitro,viz.itaccelerated the decline of chlorophyll,protein and RNA.A comparison of senescent in vitro konjacleaves with non—senescent ones indicated that the contents of chlorophylls a and b and protein in thesenescent leaves were...

KT treatments of konjac(Amorphallus rivieri Durieu)leaf discs in vitro slowed down their senescence,the speed of decline in the contents of chlorophyll,protein and RNA being lower than that in thecontrol(H_2O treatment).In contrast,ABA speeded up the senescence of the leaf discs in vitro,viz.itaccelerated the decline of chlorophyll,protein and RNA.A comparison of senescent in vitro konjacleaves with non—senescent ones indicated that the contents of chlorophylls a and b and protein in thesenescent leaves were significantly lower than those in the non—senescent leaves,MAD accumulationwas 55.13% higher in the senescent leaves,while the active oxygen scavengers(catalase andcaroteinoid)were decreased.

细胞分裂素(KT)可延缓离体魔芋叶片的衰老,表现为叶绿素、蛋白质和RNA 含量的降低较对照(H_2O)缓慢;而脱落酸(ABA)则加速了离体叶片的衰老。衰老叶片中叶绿素a、b 和蛋白质含量明显低于正常叶,脂质过氧化产物积累量也较正常叶多55.13%,但衰老叶片中过氧化氢酶和类胡萝卜素等活性氧清除剂减少。

 
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