Search Results

323 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, AP 14

    Field tests of loss-of-function tobacco lines of eIF(iso)4E for resistance to tobacco bushy top disease and agronomic traits

    KOGA K.(1); SHINJO A.(1); MAINJENI C.E.D.(2); MSANGOSOKO K.R.(2); UDAGAWA H.(1); TAKAKURA Y.(1)
    (1) Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan; (2) Agricultural Research and Extension Trust, Department of Research and Technical Services, Lilongwe, Malawi
    Tobacco bushy top disease (TBTD) is one of the serious diseases affecting tobacco (Nicotiana tabacum L.) production in African countries such as Malawi, Zambia, Tanzania and Ethiopia. This disease is caused by a mixed infection of tobacco bushy top virus ...
  2. TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 064

    Comparison of two different high-resolution mass spectrometers for untargeted LC/MS analysis of cigarette smoke extracts

    TAKANAMI Y.; KITAMURA N.; ORIKATA N.; TOBITA T.
    Japan Tobacco Inc., Yokohama, Kanagawa, Japan
    Cigarette smoke contains at least 6000 compounds. Comprehensive chemical analysis of this complex mixture is often achieved by untargeted liquid chromatography (LC)/mass spectrometry (MS) analysis, which requires the use of several state-of-art ...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 30

    Identification of sucker control genes

    HAMANO K.; SUZUKI S.; SATO S.; ARAI M.; NEGISHI Y.; NOMURA A.; TSUKAHARA M.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    In tobacco, depending on strong shoot apical dominance, suckers grow vigorously after topping. A sucker can develop sequentially at least three times at each axil during the cultivation period. Suckers negatively affect tobacco yield and quality. ...
  4. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 35

    Development of THA mutant line having markedly increased threonine in cured leaves

    KOIKE A.; NOGUCHI S.; TSUKUI S.; OGURO S.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Threonine (Thr), an amino acid, is known to be related to tobacco smoking flavour and aroma. Obtaining Thr-rich cured tobacco leaves is difficult because Thr contents in fresh tobacco leaves are decreased drastically during curing processes. To increase ...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 40

    Plant metabolism studies with 14C-maleic hydrazide (MH) in tobacco and evaluation of analytical methods

    TATENO A.(1); KISHI H.(1); NAKAYAMA K.(2); OYAMA K.(1); MIYOSHI M.(1)
    (1) Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan; (2) Japan Tobacco Inc., Scientific and Regulatory Affairs Division, Tokyo, Japan
    Maleic hydrazide (MH) is used as a sucker control agent for tobacco. Reportedly, absorbed MH in tobacco plants is metabolized to its glucoside conjugates and is converted to the bound form. However, how much original MH can be converted to those forms in ...
  6. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 43

    Pyrethroid resistance in the cigarette beetle Lasioderma serricorne (F.) (Coleoptera: Anobiidae)

    FUKAZAWA N.; TAKAHASHI R.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Spraying application of contact insecticides onto building surfaces (walls and floors) is a key measure to control the cigarette beetle Lasioderma serricorne (F.) population in tobacco warehouses. Pyrethroids have been used widely as effective surface ...