Tränkner, M.; Jákli, B. & Tavakol, E. (2018): Functioning of potassium and magnesium in photosynthesis, photosynthate translocation and photoprotection. Physiol. Plantarum, available online https://doi.org/10.1111/ppl.12747.
Prof. Dr. Merle Tränkner
Since June 2017, Prof. Dr. Merle Tränkner is Junior Professor at IAPN and the Faculty for Agricultural Sciences at Georg-August-University Göttingen. Merle Tränkner was a Ph.D. student at IAPN from October 2012 to December 2016.
During her Ph.D. studies, her work focused on the role of essential plant nutrients on drought tolerance of crop plants. With these studies she contributed basic
research aiming at improved plant growth under drought conditions through optimized nutrient management. In the scope of her studies, Prof. Dr. Merle Tränkner investigated
the role of nitrogen, magnesium and potassium in the water use efficiency of wheat and barley.
Furthermore, her project aimed at forwarding a multi-sensing approach, which allowed assessing drought stress and nutrient deficiency in plants by means of thermography, chlorophyll fluorescence, gas exchange measurements and 13C stable isotope analysis.
Based on results of the background research on water-use efficiency that is already established at IAPN, Dr. Merle Tränkner strives to analyse the impact of different nutrients on water-use efficiency in more detail. “A steadily growing world population and the raising concern of resource scarcity demands for a sustainable and resource saving, yet sufficient plant and food production. The efficient use of water and plant nutrients is of central importance for optimal plant growth, and represents a fascinating challenge for research.” says Prof. Dr. Merle Tränkner. The detection of abiotic stresses and the concomitant stress physiology, and the photosynthetic efficiency and capacity impacted by magnesium will be further core topics.
Merle Tränkner finished her Bachelor degree in Agricultural Sciences in 2010 at the University of Göttingen and graduated from the University of Göttingen with her Masters in the program “Sustainable International Agriculture”.
Publications in refereed journals and refereed conference proceedings.
Jákli, B.; Tavakol, E.; Tränkner, M.; Senbayram, M. & Dittert, K. (2017) Quantitative limitations to photosynthesis in K deficient sunflower and their implications on water-use efficiency. Journal of Plant Physiology 209, 20-30.
Jákli, B.; Tränkner, M.; Senbayram, M. & Dittert, K. (2016) Adequate supply of potassium improves plant water-use efficiency but not leaf water-use efficiency of spring wheat. J. Plant Nutr. Soil Sci. 179, 733-745.
Tränkner, M.; Jákli, B.; Tavakol, E.; Geilfus, C.M.; Cakmak, I.; Dittert, K. & Senbayram, M. (2016) Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants. Plant Soil 406, 409-423.
Senbayram, M.; Tränkner, M.; Dittert, K. & Brück, H. (2015): Daytime leaf water use efficiency does not explain the relationship between plant N status and biomass water-use efficiency of tobacco under non-limiting water supply. J. Plant Nutr. Soil Sci. 178 (4): 682-692, doi: 10.1002/jpln.201400608.
Cabeza, R.A.; Lingner, A.; Liese, R.; Sulieman, S.; Senbayram, M.; Tränkner, M.; Dittert, K. & Schulze, J. (2014) The activity of nodules of the supernodulating mutant Mt(sunn) is not limited by photosynthesis under optimal growth conditions, 5. International Journal of Molecular Sciences 15, 6031-6045.
Tränkner, M.; Tavakol, E.; Jákli, B. & Dittert K. (2017) Photoprotective responses and PSII functionality under Mg deficiency. XVIII. International Plant Nutrition Colloquium (IPNC), August 21st – 24th, Copenhagen, Denmark.
Tränkner, M.; Jákli, B.; Tavakol, E.; Dittert, K. & Senbayram, M. (2014) Magnesium deficient barley plants have lower biomass water-use efficiency and increased sensitivity to excess light energy. 2nd Magnesium Symposium, November 4th – 6th, São Paulo, Brazil.
Albers, J. & Tränkner, M. (2017) Is Beta vulgaris able to fully recover from Mg deficiency in young growth stages after resupply? XVIII. International Plant Nutrition Colloquium (IPNC), August 21st – 24th, Copenhagen, Denmark.
Tränkner, M.; Senbayram, M.; Jákli, B.; Halicki, S.; Dittert, K. & Zörb, C. (2017) Comparative Study on Proteome Changes in Response to Potassium Deficiency and Drought in Triticum aestivum Roots. Frontiers of Potassium Science Conference, January 25th -27th, Rome, Italy.
Tränkner, M.; Tavakol, E.; Dittert, K. & Senbayram, M. (2015) Photoprotective reactions of Mg deficient barley plants. International Conference of the German Society of Plant Nutrition (DGP), September 17th – 18th, Göttingen, Germany.
Jákli, B.; Tränkner, M. & Senbayram, M. (2014) Effects of potassium deficiency on water use efficiency of Triticum aestivum. International Conference of the German Society of Plant Nutrition (DGP), September 10th – 12th, Halle (Saale), Germany.
Tavakol, E.; Tränkner, M.; Jákli, B.; Dittert, K. & Senbayram, M. (2014) Adequate K supply enhances tolerance to drought situations via optimized NPQ and antioxidant activity in spring wheat. International Conference of the German Society of Plant Nutrition (DGP), September 10th – 12th, Halle (Saale), Germany.
Tränkner, M.; Tavakol, E.; Dittert, K. & Senbayram, M. (2014) Adequate magnesium supply increases biomass water-use efficiency and mitigates effects of excess light energy in barley. International Conference of the German Society of Plant Nutrition (DGP), September 10th – 12th, Halle (Saale), Germany.
Senbayram, M.; Tränkner, M.; Dittert, K. & Brueck, H. (2013) Nitrogen supply enhances intrinsic but not biomass water use efficiency. XVII. International Plant Nutrition Colloquium (IPNC), August 19th – 22nd, Istanbul, Turkey.
Tränkner, M. (2017) Magnesium, potassium and nitrogen deficiency-induced responses of crops and their impact on water-use efficiency. 1st ed. Cuvillier Verlag, Göttingen. ISBN 978-3-7369-9536-9. eISBN 978-3-7369-8536-0.
More about Prof. Dr. Merle Tränkner:
The dissertation of Merle Tränkner is published by Cuvilier-Verlag and can be ordered on their website. Go to the publishers page.
Download the list of publications of Prof. Tränkner (pdf-Document; 206 KB)