显示条目: 1-20 / 38

    • Wood structure of Aegiceras corniculatum and its ecological adaptations to salinities 

      Sun, Q; Lin, P; 林鹏 (HYDROBIOLOGIA, 1997-09-05)
      We describe the wood structure of Aegiceras corniculatum and its differences under various soil salinities. This species had diffuse-porous wood with poorly defined growth rings. Vessels which had single perforations ...
    • A novel cytoplasmic protein with RNA-binding motifs is an autoantigen in human hepatocellular carcinoma 

      Zhang, JY; Chan, EKL; Peng, XX; Tan, EM; 彭宣宪 (J EXP MED, 1999-04-05)
      In hepatocellular carcinoma (HCC), autoantibodies to intracellular antigens are detected in 30-40% of patients. Patients with chronic hepatitis or liver cirrhosis develop HCC, and when this occurs, some patients exhibit ...
    • Molecular beacon-based homogeneous fluorescence PCR assay for the diagnosis of infectious diseases 

      Li, QG; Liang, JX; Luan, GY; Zhang, Y; Wang, K; 李庆阁 (ANAL SCI, 2000-02)
      A rapid and simple homogeneous fluorescence PCR assay was developed for the clinical diagnosis of infectious diseases based on a molecular beacon. The established method could reproducibly detect Mycobacterium tuberculosis ...
    • Changes in the leaf composition, leaf mass and leaf area during leaf senescence in three species of mangroves 

      Lin, P; Wang, WQ; 林鹏; 王文卿 (ECOL ENG, 2001-01)
      Dynamics of leaf mass, leaf area and composition during leaf senescence were investigated in three mangrove species: Kandelia candel (L.) Druce, Bruguiera gymnorrhiza (L.) Lamk. and Rhizophora stylosa Griff at Jiulongjiang ...
    • 滩涂底栖动物有机污染生态学研究进展 

      覃光球; 严重玲 (2006)
      底栖动物由于对有机污染物具有较强的吸收能力,再加上其移动能力较差、生活方式比较固定,而被广泛运用于滩涂有机 污染的研究。目前这些研究主要集中在如下几个方面: (1) 有机污染物在底栖动物体内的分布特征及在底栖食物链中的动力学 研究; (2) 底栖动物对有机污染物的生理响应研究; (3) 污染物对底栖动物群落组成和结构影响研究; (4) 底栖动物在滩涂有机污 染检测中的应用研究。研究结果表明:滩涂底栖动物对有机污染物的累积具有选择性 ...
    • 木麻黄幼苗小枝质膜离子泵活性对酸雨的响应 

      李裕红; 严重玲 (2006)
      对模拟p H4. 5~2. 5 酸雨胁迫3 个月后木麻黄幼苗小枝质膜离子泵活性测定结果表明,木麻黄幼苗嫩枝质膜H+ 2 ATPase 和Ca2 + 2ATPase 对酸雨非常敏感,常随酸雨强度的加大其活性受愈来愈强的抑制. p H4. 5~2. 5 酸雨处理使质膜 H + 2ATPase 活性被抑制76. 64 %~85. 88 % ,而Ca2 + 2ATPase 活性仅为对照的14. 12 %~4. 7 %. 在p H3. 0 ...
    • 福建漳江口红树林湿地沉积物中四种重金属的空间分布特征 

      刘景春; 严重玲 (亚热带植物科学, 2006)
      对漳江口红树林湿地沉积物中4 种重金属(Pb、Cd、Ni、Fe)含量空间分布的研究表明,漳江口红树 林湿地沉积物中Pb、Fe 含量较高,Cd、Ni 含量相对较低;林内沉积物的Pb、Cd 含量显著高于林外沉积物; 在垂岸方向上,表层沉积物中除Ni 外其它三种元素含量均表现出从林外到林内增加的趋势;在垂直梯度上, 四种元素含量均随着沉积物深度增加而逐渐降低。
    • 镉对桐花树幼苗生长及渗透调节的影响 

      吴桂容; 严重玲(贺州学院化学与生命科学系) (2006)
      采用土培方法研究不同质量分数Cd(0.5~50 mg·kg-1)对桐花树 Aegiceras corniculatum 幼苗的生长及渗透调节的影 响。结果表明:低质量分数Cd(0.5 mg·kg-1)处理条件下,桐花树幼苗株高、植株鲜物质量均显著高于对照,根长、叶绿素 质量分数则没有显著增加;高质量分数Cd(50 mg·kg-1)条件下,这些参数均显著降低,说明高质量分数Cd 胁迫下,植株 正常生长受到抑制。除了0.5 mg·kg-1 ...
    • Analysis of outer membrane proteome of Escherichia coli related to resistance to ampicillin and tetracycline 

      Xu, CX; Lin, XM; Ren, HX; Zhang, YL; Wang, SY; Peng, XX; 王三英 (PROTEOMICS, 2006-01)
      The elucidation of the molecular details of antibiotic resistance will lead to improvements in extending the efficacy of current antimicrobials. In the current study, proteomic methodologies were applied to characterize ...
    • 秋茄( Kandelia candel (L) )根系分泌低分子量 

      卢豪良, 严重玲 (2007)
      应用电感耦合等离子体质谱( ICP2Ms)与高效液相色谱(HPLC)分别对福建漳江口红树林湿地不同土壤结构(砂质与泥 质)根际与非根际沉积物中重金属(Cu, Pb, Cd, Zn)含量,以及生长于砂质与泥质滩涂上的红树植物秋茄(Kandelia candel (L) Druce) )幼苗根系分泌物中的低分子量有机酸进行测定。在室内模拟秋茄根系分泌的低分子量有机酸,作为重金属提取剂提取 沉积物中可溶解态与碳酸盐结合态重金属,并与欧盟标准物 ...
    • 水体沉积物中有机碳和有机分子碳稳定同位素研究进展 

      薛博; 严重玲; 傅强 (2007)
      有机碳是指存在于沉积物总有机质(TOC)中的碳。由于同位素之间的物理、化学性质的不同,生物在生存活动过程利用环境中碳的同时改变了其同位素的比值,即产生同位素效应(isotopic effect)。通过检测来自于生物有机质中的碳同位素比值,就有可能对沉积物所在地的环境变化信息进行重建,有机碳碳同位素的研究成果已在全球碳循环、古气候变化、生物演化、地层对比研究等领域得到了应用。水体沉积物能够较好地保存环境中的有机质信息,以及良好的时间次序[ ...
    • 磷脂酰肌醇转移蛋白 

      莫萍丽; 严重玲; 李裕红; 覃光球 (2007)
       磷脂酰肌醇转移蛋白(phosphatidylinositol/phosphatidylcholinetransferproteins, PITP) 普遍存在于真核生物细胞中, PITP能够结合并交换一分子的磷脂酰肌醇(phosphatidylinositol, PI)或 磷脂酰胆碱(phosphatidylcholine, PC), 并促进这两类脂分子在细胞内膜组分间的转移。PITP对细 胞内膜组分间脂类的运输和代谢、分泌囊泡的 ...
    • FTIR study of the oxygen reduction reactions on Sm0.5Sr0.5CoO3 

      Qi-Hui Wu; Harry Abernathy; Zhe Cheng; 程喆; Meilin Liu (SURF REV LETT, 2007-08)
      The oxygen reduction on solid oxide fuel cell cathode electrode, Sm0.5Sr0.5CoO3, was studied by using emission Fourier transform infrared spectroscopy (FTIR). Superoxide (O-2) species was detected with appearance of an IR ...
    • 凡纳滨对虾G蛋白Gα_q基因的克隆和功能鉴定 

      叶志云; 金利华; 邹海鹰; 骆晶晶; 林圣彩 (海洋科学, 2008)
      为了寻找并克隆凡纳滨对虾(Litopenaeus vannamei)G蛋白α亚基,为研究对虾的生理调控提供理论基础,通过简并PCR和RACE反应获得目的基因的全长cDNA序列;用Blast,DNAstar和Genedoc软件对所得序列进行分析,确定所得序列为凡纳滨对虾G蛋白Gαq基因,命名为pvGqα。将该基因的编码序列克隆到表达载体,通过免疫共沉淀实验和胞内Ca2+,IP3浓度的测定鉴定该Gαq亚基的功能,发现该亚基的序列和功能与其他 ...
    • C3 植物稳定碳同位素组成与盐分的关系 

      韦莉莉; 严重玲 (2008-03)
      :植物在盐生环境中δ13C值的改变可能包含两个成分:一个是盐分对CO2的扩散、传递或光合速率的影响而引起的δ13C值 的改变;另一个是光合途径的转换引起的δ13C值的变化,δ13 C值的大小与诱导发生CAM或C4代谢的程度有关。植物组织的 δ13C值随盐度的变化趋势除了与植物本身固有的耐盐性有关以外,盐度和胁迫时间是影响植物δ13C的重要因素。根据盐生条 件下同位素分馏特点可知,盐生植物与非盐生植物的δ13C随盐度的变化趋势有所不 ...
    • 重金属Cd对桐花树土壤酶活性的影响 

      吴桂容; 刘景春; 张鲁狄; 张培翔; 严重玲 (2008-12)
      采用土培模拟方法研究了不同浓度Cd (0~50 mg/kg)对桐花树(Aegiceras corniculatum )土壤酶活性的影响. 试验 结果表明:低浓度Cd (0. 5 mg/kg)胁迫,可刺激脲酶的活性;在高浓度Cd (20~50 mg/kg)处理条件下,脲酶、蛋白酶、蔗糖 酶、过氧化物酶活性均受到不同程度的抑制,最大抑制率均达到25%以上; Cd处理对过氧化氢酶活性无显著影响. 相关 分析表明, Cd处理浓度与土壤酶活 ...
    • Distribution of Antioxidatases in Cell of Diatom Nitzschia Closterium and Response to Different Environmental Silicon Concentrations 

      Liang, Junrong; Zheng, Jiang; Zhao, Xin; 梁君荣 (IEEE COMPUTER SOC, 2009)
      The outbreak mechanism of red tide and the rapid reproducing mechanism of red-tide species are not very clear so far. Diatom is one of the main red tide microalgae species. It can utilize the environmental silicon to ...
    • Tributyltin Causes Obesity and Hepatic Steatosis in Male Mice 

      Zuo, Zhenghong; 左正宏; Zhang, Jiliang; Chen, Shuzhen; Wu, Tian; Su, Ying; Chen, Yixin; Wang, Chonggang; 王重刚 (JOHN WILEY & SONS INC, 2009-11-16)
      Organotin compounds such as tributyltin (TBT) have been used worldwide in agriculture and industry as biocides, heat stabilizers, and chemical catalysts. However, few studies addressing the effects of TBT on growth and ...
    • Antityrosinase and antimicrobial activities of 2-phenylethanol, 2-phenylacetaldehyde and 2-phenylacetic acid 

      Zhu, Yu-Jing; Tang, Jian-Yang ( Fujian Acad Agr Sci); Su, Ming-Xing ( Fujian Acad Agr Sci); Liu, Bo( Fujian Acad Agr Sci); Zhou, Han-Tao; 周涵韬; Hu, Yong-Hua; Guo, Yun-Ji; Chen, Qing-Xi; 陈清西 (ELSEVIER SCI LTD, 2010-06-16)
      The inhibition kinetics of 2-phenylethanol, 2-phenylacetaldehyde and 2-phenylacetic acid on the enzyme activity of mushroom tyrosinase have been investigated. The results showed that these aromatic compounds can lead to ...
    • Dynamic output feedback half-plane region pole reliable placement with sensor faults 

      Yao, Bo; Wang, Shuai; 王帅 (IEEE Computer Society, 2011)
      A dynamic output feedback reliable controller design problem of half-plane region pole placement with sensor faults is addressed. For a class of linear systems, a more practical and general faults model of sensor is ...