1. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP24

    Genotypic and pathogenic variation among black shank of tobacco isolates of Phytophthora parasitica var. nicotianae from main tobacco regions of Yunnan Province and some tobacco regions of Shandong in China

    ZHANG Xiu Guo; LUO Wen Fu; LI Yun; ZHANG Tian Yu
    Agricultural University of Shandong, Dept. of Plant Pathology, Taian, China
    Pathogenic and genotypic variability among seven populations of Phytophthora parasitica var. nicotianae from individual tobacco fields in Qujing, Kunming, Honghe, Chuxiong, Yuxi, Dali of Yunnan province and Shandong were investigated using...
  2. CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP45

    Potential of molecular marker analysis for assessment of genetic diversity in tobacco varieties

    ROSSI L.; BINDLER G.; PIJNENBURG H.; GADANI F.
    Philip Morris Europe, R&D, Neuchatel, Switzerland.
    The objective of the study was to investigate the genetic diversity of tobacco varieties by developing polymerase chain reaction (PCR)-based procedures that can detect DNA polymorphisms in tobacco. An effective DNA extraction method is required in...
  3. CORESTA Meeting, Smoke/Technology, Innsbruck, 1999, IG2, Agronomy/Phytopathology,Suzhou, 1999, AP44

    The application of polymerase chain reaction (PCR) technology to the detection, identification and quantification of genetically modified organisms (GMOs): current approaches

    GADANI F.; BINDLER G.; PIJNENBURG H.; ROSSI L.; ZUBER J.
    Philip Morris Europe, R&D, Neuchâtel, Switzerland.
    Analytical methods based on the polymerase chain reaction (PCR) technology are increasingly used for the detection of deoxyribonucleic acid (DNA) sequences associated with genetically modified organisms (GMOs). Prerequisites for GMO detection are a...
  4. CORESTA Meeting, Smoke/Technology, Innsbruck, 1999, ST02

    The effect of ingredients added to tobacco in a commercial Marlboro Lights cigarette on FTC nicotine yield, "smoke pH', and Cambridge filter trapping efficiency

    ELLIS C.; COX R.; CALLICUTT C.; LAFFOON S.; PODRAZA K.; SEEMAN J.; KINSER R.; FARTHING D.; HSU F.
    Philip Morris USA, Research Center, Richmond, VA, USA
    The objectives of this study were to determine the effect of added ammonia compounds and other ingredients, in levels utilized in a commercial cigarette, on: (1) FTC nicotine yield; (2) "smoke pH"; and (3) Cambridge filter trapping efficiency for...
  5. CORESTA Meeting, Smoke/Technology, Innsbruck, 1999, ST04

    The oxidation of nicotine with sodium hypochlorite. Identification of some of the products formed, and a rationalization of the pathways by which they arose

    PAINE J.B. III
    Philip Morris USA, Research Center, Richmond, VA, USA
    The oxidation of nicotine with sodium hypochlorite was studied. Autoanalyzer-monitored reactions showed rapid consumption of about 8 molar equivalent of oxidant. Further oxidation was slow, incomplete, and pH-dependent. Simultaneous monitoring of pH...
  6. CORESTA Meeting, Smoke/Technology, Innsbruck, 1999, ST05

    Modeling nicotine intake in smokers and snuff users using biological fluid nicotine metabolites

    BOSWELL C.; CURVALL M.; ELSWICK R.K.; LEYDEN D.
    Philip Morris USA, Research Center, Richmond, VA, USA
    While urinary cotinine is the nicotine metabolite most commonly utilized to quantify nicotine intake, many additional nicotine metabolites have been identified and quantified in urine samples. Data from two studies involving smokers and snuff users...