搜索结果: 1-8 共查到“理学 superoxide”相关记录8条 . 查询时间(0.12 秒)
Dynamics of nonphotochemical superoxide production in the Great Barrier Reef lagoon
Dynamics of nonphotochemical superoxide production the Great Barrier Reef lagoon
2014/4/17
Superoxide (O2-) and hydrogen peroxide (H2O2) concentrations ranging from 87 to 1120 pmol L-1 and 5 to 107 nmol L-1, respectively, were measured in samples of surface water from the Great Barrier Reef...
Application of an Oxygen Electrode to Evaluate Superoxide Anion-scavenging Ability
Application Oxygen Electrode Evaluate Superoxide Anion-scavenging Ability
2010/9/15
The ability to scavenge superoxide anion radicals (•O2−) was determined using an oxygen electrode. The method is based on the determination of •O2− generated by the reaction of...
Hibernation Pattern and Importance of Superoxide Dismutase for the Turkish Hamster, Mesocricetus brandti (Mammalia: Rodentia)
Mesocricetus brandti hibernation superoxide dismutase Turkey
2010/3/26
Specimens of Mesocricetus brandti were observed in order to assess the onset of hibernation and the inhibition rate of superoxide dismutase (SOD). The first individual began to hibernate on November 2...
植物超氧化物歧化酶（SOD）的研究进展Functional Roles of the Plant Superoxide Dismutase
超氧化物岐化酶 活性氧 功能 表达调控 植物抗逆性
2007/12/30
摘要超氧化物歧化酶(superoxide dismutase,SOD)在需氧原核生物和真核生物中广泛存在，是活性氧清除系统中第一个发挥作用的抗氧化酶。植物正常代谢过程和在各种环境胁迫下均能产生活性氧和自由基，活性氧和自由基的积累引起细胞结构和功能的破坏。SOD岐化超氧物阴离子自由基生成过氧化氢和分子氧，在保护细胞免受氧化损伤过程中具有十分重要的作用。本文综述了SOD的功能、在细胞中的分布、表达调控...
Extracellular production of superoxide by marine diatoms: Contrasting effects on iron redox chemistry and bioavailability
Extracellular production of superoxide marine diatoms Contrasting effects iron redox chemistry and bioavailability
2014/5/9
We report the extracellular production of superoxide in cultures of the marine diatoms Thalassiosira weissflogii and Thalassiosira pseudonana. In EDTA-buffered media with ~45 pmol L-1 iron (Fe)(III)',...
A role for manganese in superoxide dismutases and growth of iron-deficient diatoms
superoxide dismutases iron-defi cient diatoms
2014/5/19
We have discovered that coastal and oceanic diatoms require more manganese (Mn) to grow in iron (Fe) -deficient
than in Fe-sufficient seawater. At low inorganic concentrations, like those...
Purification and Partial Characterisation of Superoxide Dismutase from Chicken Erythrocytes
SOD purification characterisation chicken erythrocytes
2010/4/22
Superoxide dismutase (SOD), which plays a very important role in protecting organisms from oxygen toxicity, was purified from chicken erythrocyte and partially characterised. Erythrocyte membranes wer...
Some Properties of Cu, Zn-Superoxide Dismutase from Sheep Erythrocyte
Superoxide radical Cu Zn-superoxide dismutase 6-hydroxydopamine dismutation
2010/6/28
Superoxide dismutase (SOD) was isolated from sheep erythrocyte. SOD activity was measured under the optimized assay conditions by observing the variations of autoxidation rate of 6-hydroxydopamine (6-...