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In addition, by calculating the bioaccumulation factor, the result shows that bioaccumulation ability of the Phragmites australis varies among the tissues, and the bioaccumulation ability of the root tissue that is prone to accumulate Pb and Cd is much higher than the stem and leaf tissues which are easy to concentrate Pb.

生物富集系数的计算结果显示，芦苇不同组织对有毒重金属元素的生物富集能力存在较大差异，根组织的生物富集能力最大，且容易富集Pb和Cd；而茎、叶组织的生物富集能力较低，易富集Pb。

Analysis result indicated that the exceptional-high concentrations of Mn was found to be the limiting factor for plant growth. The concentrations of Mn, Pb, and Cd in the ten plants and Mn-enrichmentalabilities of the ten plants were analyzed in this paper.Poa pratensts, Gnaphalinm affine, Pteris viltata L., and Phytolacca esculenta Van Houtte were proved to have good metal-enrichmental an...

结果表明，早熟禾、鼠麴草、蕨、和商陆对Mn有较强富集能力，同时也是Mn的耐性植物；早熟禾、鼠麴草以及蕨对Pb的吸收和富集能力较强；小飞蓬、早熟禾和麴草对Cd的富集能力较强；但是各种植物对这 3种重金属的富集能力均未达到超富集植物的要求，进一步的改良栽培实验仍在研究中

A hydroponic experiment was conducted to investigate the role of the antioxidative defense system in cadmium tolerance of a new Cd-hyperaccumulator Picris divaricata V.

采用水培实验，研究镉对一种新发现的Cd超富集植物－滇苦菜抗氧化系统的影响。

Extensive soil sampling of the crop-reclaimed Mn mine wastelands was conducted in the six typical manganese minelands (Bayi, Lipu, Pingle, Quanzhou, Bansu and Xialei) in Guangxi, China. In the six reclaimed minesoils, the heavy metal concentrations were Pb 41.63~348.31 mgkg^(-1), Cr 48.12~287.29 mgkg^(-1), Zn 47.38~269.92 mgkg^(-1), Cu 12.71~138.03 mgkg^(-1), Cd 0.73~46.50 mgkg^(-1), and Mn 676.7~41996.4 mgkg^(-1) respectively.

对广西八一、荔浦、平乐、全州、板苏和下雷6个锰矿食用农作物恢复区土壤重金属进行含量测定，结果表明，土壤各元素含量为：Pb 41.63~348.31 mgkg^(-1)、Cr 48.12~287.29 mgkg^(-1)、Zn 47.38~269.92 mgkg^(-1)、Cu 12.71~138.03 mgkg^(-1)、Cd 0.73~46.50 mgkg^(-1)、Mn 676.7~41996.4 mgkg^(-1)。

The contents of chlorophyll were also decreased. New protein spots were induced and some protein spots were lost in root, plumular axis, chloroplast, when seedlings were treated with 1.0 mmol/L Cd(superscript 2+). A positive relationship was observed between the inhibition of seedling growth and changes in biochemical characteristics.

在1.0mmol/L Cd(上标 2+)溶液处理下，与对照相比，黄瓜幼苗的根、胚轴、叶绿体中的蛋白质组分发生变化，即蛋白缺失、新蛋白合成以及蛋白表达量的上调或下降，同时其生化性状（蛋白质组分、叶绿素含量）的变化与幼苗生长抑制呈正相关。

To understand the effect of heavy metals on Portunus trituberculatus, larvae were exposed to varying concentrations of Cu, Pb, Cd and Hg.

为了解海洋重金属污染对三疣梭子蟹的危害，进行了Cu、Pb、Cd、Hg对三疣梭子蟹幼体影响的试验。

The soluble protein content maintainers at higher level, but the proline content is on the contrary, which indicates that selenium improves the resistance of Potamogeton maackianus to the stress of Cd.

可溶性蛋白含量则保持较高的水平，脯氨酸含量刚好相反，说明Se 增强了黄丝草对Cd胁迫的抗性。

We generalized the above model of the point defect to Cd〓Zn〓Te, which was taken as ideal cation substituted pseudobinary alloy.

把二元化合物CdTe的点缺陷模型加以推广，建立了三元化合物Cd〓Zn〓Te的点缺陷模型。

RAB: CD is a completely different medium.

CD是一种完全不同的媒介。

Methods: We constructed a recomb ined adenoviral vector carrying CD or LacZ. 293 packaging cell was trans fected by the newly-constructed plasmid and generated the infectious virus.

构建含CD或LacZ基因的重组腺病毒载体，在293细胞内重组包装后，体外感染小鼠结肠癌细胞株C26，并给予不同浓度的前药氟胞嘧啶(5-FC)进行肿瘤杀伤效果观察。

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。