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Observation under Transmission Electron Microscope was carried out and growth curve of E. coli was ploted out. It was indicated that PSPPs might change the permeability of cell membrane, make cell excrescent and inhibit cell division.

透射电镜观察和大肠杆菌生长曲线表明，该色素的抑菌作用可能是通过增强细胞膜的通透性，使细胞异常生长，抑制对数生长期的细胞分裂，使细胞质稀薄、细胞解体。

Key words］desmoid-type fibromatosis;adenomatous polyposis coli gene;β-catenin gene;denaturing high performance liquid chromatography

关键词］韧带样型纤维瘤病；APC基因；β-catenin基因；变性高效液相色谱分析

To investigate the disorder of Wnt signal transduction pathway in tumorigenesis, we studied the adenomatous polyposis coli gene and β-catenin gene mutations in desmoid-type fibromatosis.

本研究分析了韧带样型纤维瘤病中APC和β-catenin基因突变，探讨Wnt通路中APC/β-catenin基因异常在肿瘤发生中的作用。

Adenomatous polyposis coli; Fibromatosis, aggressive ; Diagnosis; Therapeutics

腺瘤息肉病，结肠纤维瘤病，侵袭型诊断治疗学

Adenomatous pelypesis, coli ; Colectomy; Pouch, intestinal ; Fibromatosis

腺瘤息肉病结肠结肠切除术回肠贮袋硬纤维瘤，侵袭性

A type 3 fimbriae display system in Escherichia coli was subsequently constructed to determine the effect of MrkD allelic variation on the fimbrial activity.

接著，我们以大肠杆菌JM109为表现载体构筑了表现第三型纤毛的重组质体，分别带有mrkDV1，mrkDV2，mrkDV3和mrkDV4基因型。

LT and ST are the main enterotoxins of enterotoxigenic \$Escherichia coli \$found in clinical isolates, and CS3 (the common antigen in the CFA/Ⅱ family of fimbrial antigens) is one of the most prevalent antigens of colonization factors.

不耐热肠毒素和耐热肠毒素是产肠毒素大肠杆菌的主要致病因素，CS3为该菌的优势定居因子，是定居因子CFA/II菌毛抗原的共有抗原组分。

There appeared to be a direct relationship between polymorphisms of FUT1 gene M307 locus in post-weaning Sutai breed piglets and the resistance to pathogenic F18 fimbrial E.coli, which could be determined by adhesion and adhesion inhibition assays in vitro.

上述结果对苏太猪从体外试验上证明了FUT1基因M307位点多态性与断奶仔猪腹泻和水肿痛存在着直接的相关性。

The 7.4 kb DNA fragment containing the S. Choleraesuis std fimbrial gene cluster was PCR amplified and cloned into the pCR-XL-TOPO vector. The open reading frames of the std fimbrial gene cluster were analyzed. The resulting recombinant DNA was transformed into Escherichia coli HB101 strain.

本实验室藉由PCR方式，增幅7.4 kb的std线毛基因组，将其选殖至pCR-XL-TOPO质体DNA，委外定序后，分析std线毛基因组之开放性读框，进而将此重组DNA送入大肠杆菌HB101，并藉由RT-PCR及西方点墨试验观察到S。

Coli JM109.The rabbit anti-z66 polyclonal antibody was prepared successfully. Conclusion: This study was a foundation to research the mechanism underlying the the unidirectional flagellar phase variation of H:z66 positive Salmonella enterica serover Typhi.

成功克隆表达了H：z66阳性伤寒沙门菌鞭毛素基因fljB：z66，并制备了相应的多克隆抗体，为今后深入研究H：z66阳性伤寒沙门菌的单向相变换机制奠定了基础。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。