Dr. Siegfried Jahnke

Dr. Siegfried Jahnke Forschungszentrum Jülich GmbH IBG-2: Pflanzenwissenschaften 52425 Jülich Germany  +49 2461 61 8681 +49 2461 61 2492 s.jahnke@fz-juelich.de

Head of the research area Plant Enabling Technologies

In the research area Plant Enabling Technologies (plant.ET), we develop non-invasive (NIM) and minimal-invasive methods (MIM) to investigate structural and functional issues of plants. This comprises Nuclear Magnetic Resonance methods (ecoNMR), Tracer technologies (TracerTech), quantitative Image Processing and high-throughput Screening.

My major scientific interests are:

- Gas Exchange processes in plants with particular emphasis on heterobaric and homobaric leaves which I reckon is of ecophysiological relevance for plants adapted to specific environments.

- Phloem Transport in plants is an important requirement for plant growth. After CO₂ is fixed by the source leaves, photoassimilates are being translocated to the sink organs: to measure the involved processes by non-invasive methods is still an intriguing issue.

- Tracer Technologies to study long-distance translocation in plants non-destructively by having access to short-lived isotopes (¹¹C, ^99mTc, etc.). This is supplemented by chemical analyses of labelled compounds using long-lived radioisotopes like ¹⁴C (Solute analytics)

Beside leading the plant.ET group, I am

- deputy head of the research area Transport dynamics

- leader of the research group TracerTech

- member of the Competence Centre for Non-Invasive Methods (NIM)

- member of the Virtual Institute of Portable NMR (VIP-NMR)

I am employed with the Universität Duisburg-Essen from where I am released to work at Forschungszentrum Jülich GmbH for April 30^th, 2012.

Publikationen

Publikationen