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9 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 04

    Selection and identification of a tobacco endophytic bacteria strain L1 with inhibitory effect against TMV

    ZHAN Huaixu; WANG Fenglong; SHEN Lili; YANG Jinguang; QIAN Yumei; CHEN Dexin
    Qingzhou Tobacco Research Institute of CNTC, Qingdao, Shandong, P.R. China
    The objective of this study is to screen a biocontrol bacterial strain with significant inhibitory effect against TMV (Tobacco mosaic virus). The strains were isolated from leaves of tobacco var. Luyan 1 resistant to TMV. The anti-TMV strain was...
  2. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, AP 35

    Screening, identification and characterisation of an Arthrobacter sp. strain MC-10 capable of degrading quinclorac

    CHEN Dexin(1); ZHANG Shun(1,2); HUANG Guolian(3); XU Jialai(4); LI Bin(5); LI Hongguang(3)
    (1) Qingzhou Tobacco Research Institute of CNTC, Qingdao, P.R. China; (2) Chinese Academy of Agricultural Sciences, Graduate School, Beijing, P.R. China; (3) Hunan Chenzhou Tobacco Company, Chenzhou, P.R. China; (4) Shandong Tobacco Research Institute, Ji’nan, P.R. China; (5) Sichuan Tobacco Company, Chengdu, P.R. China
    The objective of this study was to screen strains able to degrade quinclorac efficiently. The strains were isolated from the perennial administration quinclorac paddy fields. The strain MC-10, which can degrade quinclorac efficiently, was screened by...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, AP 26

    Development and application of Immunocapture real-time RT-PCR for detection of potato virus Y (PVY) in individual peach aphid (Myzus persicae)

    CHEN Dexin(1); YANG Jinguang(1); WANG Fenglong(1); ZHOU Wenliang(2); SHEN Lili(1); QIAN Yumei(1)
    (1) Key Laboratory of Tobacco Quality Control, Ministry of Agriculture, Qingdao, Shandong 266101, P.R.China; (2) Guangxi Tobacco Company Baise Branch, Baise 533000, P.R. China
    Potato virus Y (PVY) is transmitted in a nonpersistent manner by peach aphid (Myzus persicae), leading to many crop diseases. PVY infected tobacco plants could cause serious damage on tobacco quality and yields due to its simple transmission path and...
  4. CORESTA Congress, Edinburgh, 2010, AP 09

    Establishment and application of multiple RT-PCR for detection of TMV, CMV and PVY in tobacco

    CHEN Dexin; YANG Jinguang; ZHANG Shuai; SHEN Lili; QIAN Yumei; WANG Changshuan; HUANG Jin; WANG Fenglong
    Chinese Academy of Agricultural Science, Key Lab. of Tobacco Pest Monitoring Controlling & Integrated Mgt, STMB, Tobacco Research Inst., Qingdao, China
    The sequences of tobacco mosaic virus (TMV), cucumber mosaic virus (CMV) and potato virus Y (PVY) in the GenBank database were aligned using DNAMAN 6.0 version software, and the primers were designed on the conserved regions. And the multiple RT-PCR...
  5. CORESTA Meeting, Agronomy/Phytopathology, Rovinj, 2009, AP 10

    Studies on a rust disease of common cephalanoplos herb Cephalanoplos segetum (Bunge) Kitam in tobacco field

    SHI Jiao; WANG Fenglong; CHEN Dexin; ZHENG Xiao; SUN Huiqing; WANG Xiufang; XU Yimin
    Ministry of Agriculture, Key Laboratory for Tobacco Quality Control, China.
    During the process of finding a bioherbicide agent, we found that a rust infected and killed plants of common cephalanoplos herb Cephalanoplos segetum (Bunge) Kitam in Qingdao, Shandong Province, P.R. China. The infected plants are necrotic or...
  6. CORESTA Congress, Shanghai, 2008, AP 30

    The study on extracting antivirus protein of an antagonistic bacteria and action mode resistance to TMV

    SHEN Lili; WANG Fenglong; QIAN Yumei; CHEN Dexin; WU Huihui; HE Jingmei
    Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
    In the laboratory, we found that the TMV contaminated by bacillus decreased the ability of infection and the symptom on the inoculated tobacco was gentle. So we separated an antivirus bacteria resistance to TMV in tobacco fields, which we named By33....
  7. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, PPOST 09

    Dynamic changes of catalase during the interaction of tobacco and cucumber mosaic virus

    WANG Fenglong; WEI Yingying; QIAN Yumei; CHEN Dexin
    Tobacco Institute of Chinese Academy of Agricultural Sciences, Qingdao, China.
    The infection of virus will induce the accumulation of active oxygen species (AOS) in plants, which is a kind of spectrum resistance. But on the other side, active oxygen species can damage the plants, thus there are active oxygen species eliminating...
  8. CORESTA Congress, Kyoto, 2004, P 05

    Studies on micropore film to control tobacco aphid-borne virus diseases

    WANG Fenglong; CHEN Dexin; QIAN Yumei; ZHANG Liantao; SHI Jiao; WEI Yingying
    Chinese Academy of Agricultural Sciences, Tobacco Research Inst., Shandong, Qingzhou, China.
    Tobacco virus diseases have been among the main factors hindering tobacco production in China. The effective control method for the dominant tobacco aphid-borne viruses including PVY and CMV is to prevent alate aphids migrating into tobacco fields....
  9. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 126, P6

    Study on the predictive models of tobacco virus disease transmitted by aphids

    WANG Fenglong; QIAN Yumei; SHI Jiao; WANG Jinbo; CHEN Dexin; ZHAO Liming; MU Jianmin
    Qingzhou Tobacco Research Institute of CNTC, Qingzhou, Shandong, China
    In China, CMV, PVY and TEV transmitted by aphids have seriously impaired tobacco production in most tobacco-growing areas. In this paper, several predictive models, concerning aphid-transmitted tobacco virus disease, were formulated. Based on the...