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78 results

  1. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 37

    Fine-cut tobacco: NFDPM ("tar"), nicotine and carbon monoxide smoke yields determined from articles made from the five top selling brands sold in the U.K

    THOMAS F.
    Arista Laboratories Europe, Teddington, UK
    Using International Standard ISO/FDIS 15592[1] Department of Health commissioned Arista Laboratories Europe to acquire, manufacture and machine smoke articles for the five top selling brands of fine cut tobacco on sale in the UK (covering 96.6%...
  2. CORESTA Meeting, Smoke/Technology, Xian, 2001, ST 31

    The rapid and quantitive analysis of tobacco specific N-nitrosamines in whole tobacco using LC/MS/MS with positive ion electrospray

    WAGNER K.A.; GILLMAN I.G.
    Arista Laboratories, Richmond, VA, USA
    Tobacco specific N-nitrosamines (TSNAs) are known components of whole tobacco. TSNAs in tobacco filler have traditionally been determined using gas chromatography with a thermal energy analyzer (GC-TEA). This method requires time-consuming sample...
  3. CORESTA Meeting, Smoke/Technology, Xian, 2001, ST 33

    The rapid and quantitive analysis of tobacco specific N-nitrosamines in mainstream tobacco smoke using LC/MS/MS with positive ion electrospray

    GILLMAN I.G.; WAGNER K.A.
    Arista Laboratories, Richmond, VA, USA
    Tobacco specific N-nitrosamines (TSNAs) are known components of mainstream cigarette smoke. Quantification of TSNAs from tobacco smoke has traditionally required time-consuming sample cleanup and lengthy sample analysis times. As an alternative to...
  4. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 136, PPOST4

    Production of fertile progenies of Nicotiana sylvestris Speg. et Comes x N. tabacum L. hybrid using in vitro techniques

    NIKOVA V.; PUNDEVA R.; VLADOVA R.; IANCHEVA A.
    Bulgarian Academy of Science, Institute of Genetics, Sofia, Bulgaria.
    Interspecific cross of Nicotiana sylvestris (n=12) pollinated with N. tabacum (n=24) was included in the present study. F1 plants combined morphological features of both parents: intermediate stem and leaves, flowers with sylvestris fragrance,...
  5. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 67, AP17

    Biochemical changes in ß-cryptogein - elicited tobacco: a possible basis of induced resistance

    EDREVA A.; BLANCARD D.; DELON R.; BONNET P.; RICCI P.
    Bulgarian Academy of Science, Institute of Genetics, Sofia, Bulgaria.
    ß-cryptogein, a proteinaceous elicitor from the phytopathogenic fungus Phytophthora cryptogea , is known to induce leaf necrosis in tobacco and non-specific resistance (expressed in the perinecrotic leaf area) against a wide range of tobacco...
  6. Ann. Tabac, 1997, Sect. 2-29, p. 27-32., ISSN.0399-0354

    A biochemical study of tobacco subjected to cotyledon test : effect of magnesium, reactions of resistant and non resistant plants to Peronospora tabacina. VIII. A cytochemical study of lignin and phenolics

    GEORGIEVA I.D.; DELON R.; EDREVA A.
    D. Kostov Inst. of Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria
    The cytochemical localisation of lignin and phenolics in P. tabacina -infected susceptible and resistant tobacco genotypes was investigated. The work was carried out with seedlings grown according to the cotyledon test as a model system. It involved...
  7. Ann. Tabac, 1997, Sect. 2-29, p. 54-9., ISSN.0399-0354

    Induction of acidic pathogenesis-related (PR-1) proteins in Erysiphe cichoracearum D.C.-infected tobacco leaves

    EDREVA A.; COUSSIRAT J.C.; DELON R.
    D. Kostov Inst. of Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria
    It is demonstrated that in N. tabacum leaves acidic pathogenesis-related (PR-1) proteins are induced by the obligatory ectoparasitic fungus Erysiphe cichoracearum , causative agent of tobacco powdery mildew. No difference was shown between the...
  8. Ann. Tabac, 1998, Sect. 2-30, p. 3-9., ISSN.0399-0354

    Possible relation between tobacco resistance to aphids (Myzus nicotianae Blackman) and phenolic compounds in glandular trichomes and leaf epidermis

    GEORGIEVA I.D.
    Bulgarian Academy of Science, Institute of Genetics, Sofia, Bulgaria.
    The localization of various phenolic compounds in tobacco leaves and their influence on the degree of infestation by aphids ( Myzus nicotianae Blackman) were assessed. The leaves of both immune and resistant tobacco lines from the interspecific...