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Julius Kühn-Institut (JKI)
Federal Research Institute
for Cultivated Plants

apl. Prof. Dr. Johannes Hallmann

Messeweg 11/12
38104 Braunschweig, Germany

Ms Martina Ernst
Tel: +49(0)531 299-3701
Fax: +49(0)531 299-3006
E-mail: ep@  julius-kuehn.  de

Erwin-Baur-Str. 27
06484 Quedlinburg, Germany


Ms Rita Pollin
+49(0)3946 47-502
Fax: +49(0)3946 47-255
Mail: ep@  julius-kuehn.  de

Branch office in Münster
Toppheideweg 88
48161 Münster, Germany

Ms Elvira Politz
Tel: +49(0)251 87106-10
Fax: +49(0)251 87106-33

Institute leaflet
Institute booklet

Christiane Then

Wissenschaftliche Mitarbeiterin

Christiane   Then
Tel: +49 (0)531 299 3718
Fax: +49 (0)531 299 3006

Julius Kühn-Institut
Messeweg 11/12
38104 Braunschweig

Assignments and research activities:

  • Research fellow in AG Dr. Ziebell (virology)
  • Nanoviruses grain legumes in CYDNIGPRO
  • Field monitoring of viral diseases in legumes and aphid vectors
  • Molecular diagnostics of viruses and viroids
  • Aphid transmission of viruses and the vector-virus-plant interactions involved

Professional career & education:

  • Since 2018 Research Fellow, AG Ziebell - Virology Group, JKI-Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany

    • Projects and Programmes:
      - Nanovir 2018: New viral diseases in pea and faba bean: Status quo analysis and recommended actions
      - Molecular diagnostics with focus on Pospiviroids, Tymoviruses and Tobamoviruses

  • 2013 - 2018 Research Fellow, Virus Insect Plant (VIP) Group, Biology and Genetics of Plant-Pathogen Interactions (UMR-BGPI), INRA, Campus International de Baillarguet, Montpellier, France

    • Projects and Programmes:
      - Viral interactions with the plant host mediate subsequent vector transmission
      - Cellular and biophysical mechanisms of virus-vector interactions mediating disease transmission
      - Interference of plant viruses with aphid-induced calcium signalling in Arabidopsis

  • 2010 - 2013 Research Fellow, Centre for Research in Agricultural Genomics (CRAG), Campus UAB Bellaterra, Barcelona, Spain Awarded by a Marie Curie Intra- European Fellowships for Career Development (IEF) in 2009

    • Project:
      - Arabishade: Molecular cross-talk of light perception and development for plant adaptation to the environment

  • 2003 - 2010 Research Fellow, Alpine Timberline Ecophysiology, Department of Natural Hazards, Federal Forest Office (BFW), Innsbruck, Austria Free-air ozone fumigation plot, Freising, Germany (2003-2010)

    • Projects and Programmes:
      - CASIROZ: The carbon sink strength of beech in a changing environment: Experimental risk assessment of mitigation by chronic ozone impact
      - Ozone effects on biochemical defence of Pinus canariensis
      - 13C/12C stable isotopes of juvenile and adult beech under contrasting ozone exposure

  • 1995 - 2002 Research Fellow, Federal Research Centre for Forestry and Forest Products (BFH), Hamburg, Germany and Korup National Park, Cameroon (1998)

    • Projects and Programmes:
      - Growth, nutrition and ecophysiology of ectomycorrhizal (EM) legume tree seedlings in tropical Africa (SW Cameroon) in relation to their ecology and silviculture
      - Sustainable forest management in the tropics

  • 1996 Diplom Biologist, University of Göttingen, Germany Venezuelan Institute for Scientific Research (IVIC), Venezuela (1994)

Publications on Researchgate

Publications in the Julius Kühn-Institut