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8 results

  1. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 02

    Multiple leaf screening to reduce nicotine to nornicotine conversion in Burley tobacco

    JACK A.M.; LI Xiaolong; FANNIN F.F.; DYE N.; BUSH L.P.
    University of Kentucky, Princeton, KY, USA
    Foundation seed of most Burley tobacco varieties is now routinely screened to eliminate nicotine converter plants, which demethylate nicotine to nornicotine, a precursor of NNN (N'-nitrosonornicotine), the predominant TSNA in Burley. It is important ...
  2. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 22

    The impact of Arabidopsis CAX gene expression on leaf cadmium accumulation in field grown tobacco

    WAGNER G.J.; KORENKOV V.; HIRSCHI K.
    University of Kentucky, Dept. of Plant & Soil Sciences, Lexington, KY, USA
    CAX genes encode divalent cation/proton exchangers that are localized in the tonoplast (vacuole) membrane of plant cells. They transfer divalent-positive cations (e.g., Cd, Zn, Mn, Ca) from the cytosol to the vacuole sap where they may be sequestered. Our ...
  3. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 23

    Effects of Arabidopsis CAX gene expression on tolerance of tobacco to growth with high Cd, Zn, or Mn

    WAGNER G.J.; KORENKOV V.; HIRSCHI K.
    University of Kentucky, Dept. of Plant & Soil Sciences, Lexington, KY, USA
    CAX2 and CAX4 transporters are thought to facilitate Cd, Zn, and Mn transport into the plant vacuole. Under low-level Cd exposure as occurs in most natural and agricultural environments (non-toxic), these transporters are thought to be the principal means ...
  4. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 30

    Experimental herbicide systems for postemergence weed control in no-tillage dark tobacco

    BAILEY W.A.; PEARCE R.C.
    University of Kentucky, Dept. of Plant & Soil Sciences, Lexington, KY, USA
    Conservation tillage systems for tobacco conserve soil moisture and substantially reduce energy costs and soil erosion by wind and water. Conservation tillage can also allow tobacco growers to make more timely pesticide applications in the field during ...
  5. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 41

    Managing thrips vectors and tomato spotted wilt tospovirus symptom expression in flue-cured tobacco

    McPHERSON R.M.; MOORE J.M.
    University of Georgia, Dept. of Plant Pathology, Tifton, GA, USA.
    Tomato spotted wilt tospovirus (TSW) is a serious economic problem for tobacco producers in Georgia, USA. This virus is spread, or vectored, by tiny insects called thrips (Thysanoptera: Thripidae) as they feed on the crop. Results are presented from ...
  6. TSRC, Tob. Sci. Res. Conf., 2007, 61, abstr. 23

    Genes involved in inflammatory responses following exposure to cigarette smoke in normal human bronchial epithelial (NHBE) cells

    PARSANETAD R.; FIELDS W.R.; STEICHEN T.J.
    Wake Forest University School of Medicine, Dept. of Physiology and Pharmacology, Winston-Salem, NC, USA
    Bronchial epithelium is frequently exposed to air pollutants. Hence, it has been hypothesized that these cells elicit inflammatory responses as the first element in pulmonary defense. The purpose of this study is to evaluate changes in mRNA levels of 84 ...