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102 results

  1. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 31

    Management of whitefly Bemisia tabaci, a vector of tobacco leaf curl virus disease in Virginia tobacco

    SREEDHAR U.; SAILAJA JAYASEKHARAN B.; VENKATESWARLU V.
    ICAR - Central Tobacco Research Institute, Rajahmundry, India
    Tobacco whitefly, Bemisia tabaci is an important pest of tobacco. It causes damage by sucking the sap and as a vector of tobacco leaf curl virus resulting in considerable loss of yield and quality. In the recent past, the incidence of leaf curl virus...
  2. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 32

    Habitat management for the enhancement of arthropod services in flue-cured Virginia tobacco

    SAILAJA JAYASEKHARAN B.; SREEDHAR U.; VENKATESWARLU V.
    ICAR - Central Tobacco Research Institute, Rajahmundry, India
    Arthropods are a phylum of animals with jointed legs, which includes insects. They offer a wide range of ecosystem services, like nurturing the soil health, pollination, seed dispersal, pest management etc. The objective of the research was to study...
  3. CORESTA Congress, Online, 2022, Smoke Science/Product Technology Groups, ST 80

    Analysis of absorption hysteresis of different cigarette blends based on adsorption thermodynamics method

    QIU Changgui(1,2); LIU Ze(3); WEI Qing(1); HE Banghua(3); YANG Qianxu(3); LIU Jing(1,2); LI Siyuan(4); WANG Zeyu(4); ZUO Wen(4); YANG Lan(4); GUO Miaomiao(3)
    (1) Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming, China; (2) Yunnan Comtestor Co., Ltd., Kunming, China; (3) China Tobacco Yunnan Industrial Co., Ltd., Kunming, China; (4) Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming, China
    In order to study the isothermal adsorption characteristics for cut tobacco, cut stem and cut reconstituted tobacco, the adsorption hysteresis was quantified using the definite integral expression of GAB model, and the isosteric adsorption heat of...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 08

    An update to the molecular markers used for rapid screening of pathogen resistant plants

    JULIO E.(1); COTUCHEAU J.(1); VOLPATTI R.(1); DECORPS C.(1); VERRON T.(2); CAHOURS X.(2); DORLHAC DE BORNE F.(1)
    (1) Imperial Brands, Leaf Research, Bergerac, France; (2) Imperial Brands, Scientific Research, Paris, France
    Due to cheaper costs associated with next generation sequencing (NGS) technologies, the availability of transcriptomic and genomic information has enabled the characterization of new molecular markers related to important agronomic traits. Today,...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 31

    High quality genome assembly of Nicotiana tabacum

    GAYSSANT H.(1); DARNIGE E.(1); COTUCHEAU J.(2); DORLHAC DE BORNE F.(2); JULIO E.(2); ZOUINE M.(1)
    (1) Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France; (2) Imperial Tobacco Limited and Imperial Brands PLC Companies, Bergerac, France
    Nicotiana tabacum, or cultivated tobacco, is an important plant model whose genome has been explored recently. However, the previous tobacco assemblies based on short reads sequencing showed some flaws. Thanks to new sequencing technologies, the...
  6. CORESTA Congress, Online, 2020, Smoke Science/Product Technology Groups, ST 03

    Method development for the analysis of mono-carbonyl compounds in e-vapor products by LC-MS

    ZHU J.; HEREDIA A.; TWEEDY J.; TAYYARAH R.
    ITG Brands and Fontem USA, Greensboro, NC, U.S.A.
    At the 73rd Tobacco Science Research Conference (TSRC), we presented a novel method for quantitation by LC-MS of mono-carbonyl compounds in e-vapor product aerosol samples. The method is simple and robust with good recoveries. We have since extended...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, AP 13

    Development of codominant markers related to powdery mildew resistance from N. tomentosiformis origin

    JULIO E.(1); MALPICA A.(2); COTUCHEAU J.(1); BACHET S.(2); VOLPATTI R.(1); DECORPS C.(1); DORLHAC DE BORNE F.(1)
    (1) SEITA - Imperial Brands, Leaf Research, Bergerac, France; (2) Bergerac Seeds and Breeding, Bergerac, France
    Powdery mildew is a common tobacco plant fungal disease which can reduce growers' crop yields, particularly in South Africa, Asia and Europe. Three different resistance sources are known, coming from wild tobacco species N. tomentosiformis and N....
  8. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 45

    Meta-analysis of two biomarkers of exposure of tobacco products

    AYALA-FIERRO F.(1); ELAMIN A.(2); FROST-PINEDA K.(3); JIN T.(3); PRASAD G.L.(3); SARKAR M.(4); SCHMIDT E.(3); VERRON T.(5)
    (1) ITG Brands LLC, Greensboro, NC, U.S.A.; (2) PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland; (3) RAI Services Company, Winston-Salem, NC, U.S.A.; (4) Altria Client Services LLC, Richmond, VA, U.S.A.; (5) SEITA - Imperial Brands, Paris, France
    In the context of tobacco products, broadly two types of biomarkers exist, biomarkers of exposure (BoE) and biomarkers of potential harm (BoPH). BoE measure exposure to tobacco constituents, e.g. carbon monoxide (CO) and nicotine equivalents (NEQs)....
  9. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 25

    Misperception of e-cigarette harm growing among American adults, 2013-2015

    VERRON T.(1); GUO M.(1); VARIGNON B.(1); O'CONNELL G.(2); WALELE T.(2); CAHOURS X.(1)
    (1) SEITA - Imperial Brands plc, Paris, France; (2) Fontem Ventures B.V., Amsterdam, The Netherlands
    Electronic cigarettes (e cigarettes) have been characterised as significantly less harmful than smoked tobacco by an increasing number of public health authorities. However, the proportion of American adults who perceive e cigarettes to be equally or...