Search Results

6 results

  1. CORESTA Congress, Sapporo, 2012, Agronomy/Phytopathology Groups, APPOST 12

    Biocontrol efficiencies and identification of nematicidal metabolite from strain BJLSH9 towards nematode and Phytophthora nicotianae

    DUAN Yan-qing(1); LI Ping(2); ZHE Wei(1); XI Jia-qin(3); XIA Jianjun(1); WANG Wenyuan(1); JIANG Junxiang(1); MO Ming-he(2)
    (1) Technology Center of Hongyun Honghe Tobacco (Group) Co., Ltd, Wuhua District, Kunming, P.R. China; (2) Key Laboratory for Conservation and Utilisation of Bio-Resources, Yunnan University, Kunming, P.R. China; (3) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    BJLSH9, an actinomycete exhibiting both nematicidal and antifungal activities, was isolated from rhizospheric soil of willow in Beijing. Bioassay results in vivo showed that BJLSH9 displayed a 50.05% efficiency to suppress radial growth of Phytophthora ...
  2. CORESTA Congress, Edinburgh, 2010, AP 16

    Isolation, identification and characterization of a nicotine-degrading bacterium Acinetobacter sp. ND12

    DUAN Yanqing; ZENG Xiaoying; LI Hongjuan; ZHE Wei; WANG Mingfeng; YANG Jinkui
    Technology Center of Hongyun Honghe Tobacco (Group) Co, Ltd., Kunming, China
    A novel bacterium, strain ND12, was newly isolated from the tobacco plantation soil and identified as Acinetobacter sp. ND12 based on morphology, physiological tests, 16S rRNA sequence and phylogenetic analysis. The isolate could utilize nicotine as the ...
  3. Tobacco Science & Technology, 2010, 8, p. 61-64., ISSN.1002-0861

    Improvement of flue-cured tobacco quality with Bacillus pumilus

    HUANG JING-WEN(1); DUAN YAN-QING(2); ZHE WEI(2); WANG MING-FENG(2); ZHANG KE-QIN(1); YANG JIN-KUI(1)
    1. Laboratory for Conservation and Utilization of Bio-resources, Yunnan University, Kunming 650091, P.R. China; 2. Technology Centre, Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China
    A strain of Bacillus pumilus, Van35, was isolated and screened from the surface of flue-cured tobacco leaves, the microbial agent prepared from it was sprayed on cut tobacco. The treated cut tobacco was fermented at 45 °C and relative humidity 60% for 21 ...
  4. CORESTA Meeting, Agronomy/Phytopathology, Rovinj, 2009, AP 23

    Uncultivated bacterial diversity and phylogenetic analysis in flue-cured tobacco

    DUAN Yanqing; WU Yi; ZENG Xiaoying; ZHE Wei; GONG Xiaowei; YANG Jinkui; LI Qinhua
    Technology Center of Hongyun Honghe Tobacco (Group) Co, Ltd., Kunming, China
    There are lots of uncultivated bacteria in flue-cured tobacco, the species and roles of these bacteria in aging process of tobacco are unknown. Bacterial diversity of the flue-cured tobacco K326 (C3F) was studied using the culture-independent method and ...
  5. TSRC, Tob. Sci. Res. Conf., 2009, 63, abstr. 70

    Characterization of a novel nicotine-degrading Bacterium Rhodococcus sp. Y22 and its metabolic pathway

    DUAN YANQING; ZENG XIAOYING; ZHE WEI
    Technology Center, Hongyun Honghe Tobacco Co., LTD., Kunming, China
    A novel nicotine- degrading bacterium, strain Y22, was isolated from tobacco plantation soil and identified as Rhodococcus sp. based on 16S rDNA sequence and on morphological and biochemical features. The isolate could utilize nicotine as sole source of ...
  6. Tobacco Science & Technology, 2008, 4, p. 39-41, ISSN.1002-0861

    Effects of pH value of cut tobacco on nicotine in and smoking quality of cigarette smoke

    DUAN YAN-QING; YANG TAO; ZHE WEI
    Technology Center, Hongyun Tobacco (Group) Co., Ltd., Kunming, China
    In order to investigate the effects of pH value of cut tobacco on nicotine in and smoking quality of cigarette smoke, cut tobacco of two brands of cigarette was treated with 0.2 mol/L HCl and 0.5 mol/L NaOH aqueous solutions, respectively, and then the pH ...