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cadmium treatment
相关语句
  镉处理
    Some detoxication mechanisms of different wheat varieties under cadmium treatment
    镉处理下不同小麦品种几种解毒机制探讨
短句来源
    Effects of Nitrogen Fertilizer on the Root Morphology and Cadmium Accumulation in Low Cadmium Treatment Sedum alfredii Hance
    氮对低镉处理下东南景天根系形态及镉积累的影响
短句来源
    Our result showed that in Cd-treated plants (hydroponic culture or sewage irrigation), the change of physiological and biochemical index was more significant than in the controls and was correlated with cadmium treatment concentration.
    研究结果表明,无论是在水培条件下对狭叶香蒲根系添加不同浓度的镉处理还是对生长在土壤中的植株进行镉污水浇灌处理,与对照相比,狭叶香蒲体内的生长、生理、生化指标均发生不同程度的变化,但存在一定的浓度效应。
短句来源
  镉处理
    Some detoxication mechanisms of different wheat varieties under cadmium treatment
    镉处理下不同小麦品种几种解毒机制探讨
短句来源
    Effects of Nitrogen Fertilizer on the Root Morphology and Cadmium Accumulation in Low Cadmium Treatment Sedum alfredii Hance
    氮对低镉处理下东南景天根系形态及镉积累的影响
短句来源
    Our result showed that in Cd-treated plants (hydroponic culture or sewage irrigation), the change of physiological and biochemical index was more significant than in the controls and was correlated with cadmium treatment concentration.
    研究结果表明,无论是在水培条件下对狭叶香蒲根系添加不同浓度的镉处理还是对生长在土壤中的植株进行镉污水浇灌处理,与对照相比,狭叶香蒲体内的生长、生理、生化指标均发生不同程度的变化,但存在一定的浓度效应。
短句来源
  “cadmium treatment”译为未确定词的双语例句
    Accordingly,the inhibitory effects on cadmium uptake and accumulation in Chinese cabbage shoots were prominently grown in the cadmium 0.6,0.9mg/kg contaminated soil,with the concentration and the total cadmium decreased significantly compared with the non-silicon cadmium treatment.
    显著地减少在土壤较高外源镉浓度(0.6,0.9mg/kg)污染下的白菜地上部对镉的吸收与累积,有效地降低了白菜地上部重金属镉的浓度和吸收总量。
短句来源
    The results showed that all kinds of observed cells had been changed ultrastructurally after cadmium treatment whether by injection or by exposure, and that the longer of cadmium treatment was, the more seriously the cells had been changed in morphology.
    结果显示:无论体内注射还是体外暴露镉,心肌细胞和雄性生殖细胞超微结构都出现了改变,并随着时间的延长而加剧。
短句来源
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  cadmium treatment
Out of 380 protein spots detected on 2-D gel using Coomassie staining, 11 spots were changed significantly following cadmium treatment.
      
Alterations of the protein expression patterns following 10 μM cadmium treatment were analyzed on 2-dimensional gels.
      
As in higher organisms, two major forms of metallothionein appeared to be present in the liver following cadmium treatment.
      
Induction of metallothionein and methallothionein mRNA in rainbow-trout liver following cadmium treatment
      
Apoptotic chromatin changes in chromatin structure after cadmium treatment were seen as large extensive disruptions, holes in the nuclear membrane and stickiness of incompletely folded chromosomes.
      
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Tobacco chloroplasts were treated with various concentration of Cadmium, the photosynthetic reduction rate of Fecy and DCIP of the chloroplasts decreased, the photosynthetic electron transport was inhibited, the emission intensity of chlorophyll a. fluorescence reduced the absorption the chloroplasts in the absorption peak of long wave length part dropped, the inhibition of photosynthetic electron transport of the chloroplasts increased as the increment of the Cadmium-treatment time and Cddmium...

Tobacco chloroplasts were treated with various concentration of Cadmium, the photosynthetic reduction rate of Fecy and DCIP of the chloroplasts decreased, the photosynthetic electron transport was inhibited, the emission intensity of chlorophyll a. fluorescence reduced the absorption the chloroplasts in the absorption peak of long wave length part dropped, the inhibition of photosynthetic electron transport of the chloroplasts increased as the increment of the Cadmium-treatment time and Cddmium concetration . The photosynthetic electron transport was closely corespondence with the intact degree of the photosynthetic membrane, the inhibition of photosynthetic electron transport brought about by cadmium were corresponding to the process of damaging the structure of photosynthetic membrane.

镉处理烟草叶绿体,引起叶绿体Fecy及DCIP光还原速率减慢,光合电子传递受阻,叶绿素α荧光发射强度降低,叶绿体在长波吸收峰处的峰值下降,随镉处理时间及浓度的增加,叶绿体的光合电子流受抑程度也增加.光合电子传递与光合膜结构完整性是密切相关的,镉抑制光合电子传递也是光合膜结构不断破坏的过程.

The paper mainly studied the toxic effects of single Cd and interaction of Cd with Zn on [ Oenanthe javanica (Blume) DC].The cadmium concentration acetates was 0.1,1,10,50,100?mmol/L.5?mmol/L zinc was added to every single cadmium treatment. we measured the following physiological indexes: chlorophyll content, activity of peroxidase and nitrate reductase, soluble protein et al . Our conclusion was that : on the content of superoxide anion zinc showed a synergism with cadmium; while the other...

The paper mainly studied the toxic effects of single Cd and interaction of Cd with Zn on [ Oenanthe javanica (Blume) DC].The cadmium concentration acetates was 0.1,1,10,50,100?mmol/L.5?mmol/L zinc was added to every single cadmium treatment. we measured the following physiological indexes: chlorophyll content, activity of peroxidase and nitrate reductase, soluble protein et al . Our conclusion was that : on the content of superoxide anion zinc showed a synergism with cadmium; while the other indexes zinc showed an Antagonism with cadmium when w Zn / w Cd >1/2,and Synergism when w Zn / w Cd <1/2.

主要研究了镉及镉、锌共同作用时对水芹菜的毒害影响 ,测定了叶绿素含量、可溶性蛋白含量、超氧阴离子含量、硝酸还原酶活性、过氧化物酶活性等生理指标的变化 .结论是 :超氧阴离子含量锌与镉表现为协同效应 ,而其他指标在wZn/wCd大于 1/ 2时为拮抗效应 ,而小于 1/ 2时表现为协同效应 .

Reproduction of Crustaceana is a complex regulated process which can be affected in several ways by heavy metals and other pollutants. For the first time the effect of cadmium on the male germ cell of the freshwater crab ( Sinopotamon yangtsekiense ) was studied by the means of body cavity injection (Cd 2+ 1 5 μg/g boby weight) in this paper. The germ cell at the different developmental stages in the treated and control individuals had been observed by transmission electron microscopy (TEM) in order...

Reproduction of Crustaceana is a complex regulated process which can be affected in several ways by heavy metals and other pollutants. For the first time the effect of cadmium on the male germ cell of the freshwater crab ( Sinopotamon yangtsekiense ) was studied by the means of body cavity injection (Cd 2+ 1 5 μg/g boby weight) in this paper. The germ cell at the different developmental stages in the treated and control individuals had been observed by transmission electron microscopy (TEM) in order to determine whether cadmium might have a morphological effect on them during spermatogenesis. The same experiment had been done twice in the period of March to May and October to December in 1999. In the experiment, male crabs were brought from aquatic product market in Taiyuan and raised in laboratory for more than a week before treatment. The mature male crabs in middle size were chosen and injected Cd 2+ into the body cavity. The treated and control animals were dissected in different times (10 min, 0 5 h, 1 h, 2 h, 4 h, 24 h). The results showed that all kinds of observed cells had been changed ultrastructurally after 30 minutes of cadmium treatment except for spermagone, and that the longer of cadmium treatment was, the more seriously the cells had been changed in morphology. Spermagone had ultrastructural changes after two hours of cadmium treatment; and their cell membrane had been broken partly and nuclear membrane distorted and most mitochondria vacuolated after four hours of treatment. In primary spermatocyte and secondary spermatocyte, ultrastructural changes had been observed after 30 minutes of Cd 2+ treatment, and changes of organelle were distinct after one hour of Cd 2+ treatment. The damaged order of organelle of spermatocyte was: mitochondria and endoplasmic reticula firstly (30 min), nuclear membrane and nucleoli secondly (2 h), cell membrane and Golgi complex and lysosome lastly (24 h). In secondary spermatocyte order, mitochondria had been damaged firstly (0 5 h) and cell membrane and nuclear membrane and endoplasmic reticula secondly (1 h). Injected cadmium 30 minutes later, the cell membrane of spermoblast had been damaged and acrosome had been distorted and mitochondria had been shifted 4 hours later, i.e.injecting cadmium into the animals could cause all organoid of all sorts of male germ cells damaged shortly. Among five kinds of male germ cell, spermagone was the latest one to be damaged by cadmium. Golgi complex was the least to be damaged by cadmium, its ultrastructure had been observed normally in secondary spermatocyte Ⅱ and had been damaged slightly in primary spermatocyte Ⅰ after 24 hours of treatment. Cell membrane and mitochondria were affected earlier than other organelle. The changes of cell membrane and mitochondria were including cell membrance swelled seriously (eg. spermoblast) and disintegrated partly, mitochondria distorted and vacluolated and broken, some mitochondria contracted and turned smaller than normal ones, some mitochondria cristae disappeared. At first nucleus had been distorted and nuclear membrane had been expanded slightly, chromatin of primary spermatocyte had been condensated to cluster and chromatin of secondary spermatocyte had been turned free 4 hours later. Ribosome and nucleoli had been increased to three or five, and some of the latter had been shifted around nuclear membrane 2 hours later. Rough endoplasmica reticula (RER) had been vacuolated largely and turned into smooth endoplasmica reticula (SER) by disassemblying ribosome from RER, which led to the increase of SER and ribosome. There were more lysosome and vacuolus in cytoplasmic matrix and other organella had been damaged seriously twenty–four hours later. The results showed that male germ cells of the experimented animals could be damaged by injecting cadmium into their body cavity. The organella with membrane structure were easily damaged, such as mitochondria, nucleus, endoplasmica reticula and cell membrane. Among them mitochondria was damaged ea

分别于 1999年 3~ 5月和 10~ 12月 ,利用透射电镜方法 ,按 1 5 μg/g体重的剂量体腔注射Cd2 + 于长江华溪蟹 (Sinopotamonyangtsekiense)体内 ,在 10min至 2 4h之间的若干时间段取材 ,观察精子发生过程中不同发育阶段生殖细胞的变化。结果表明 :镉注射后 0 5h ,各级生精细胞就开始出现超微结构的变化 ,主要表现为线粒体肿胀与空泡化 ,高尔基体变形 ,内质网扩张和膜结构损伤等。其中线粒体损伤出现最早 ,是最易受损伤的一个敏感细胞器。

 
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