Search

link to homepage

Institute of Bio- and Geosciences

Navigation and service


Shoot Dynamics

Measuring and understanding photo-synthesis and dynamic shoot traits from single leafs to the ecosystem

We aim to improve our scientific (biological) understanding of plant shoot functioning and dynamic shoot traits from the leaf to the canopy, which will provide the basis to optimize plant production.

Our special focus is on

  1. understanding of the regulatory properties of photosynthesis,
  2. the mechanisms of leaf and canopy water content and transpiration as well as
  3. the dynamics in shoot architecture in crops.

For this we use and further develop optical phenotyping methods, fluorescence techniques, thermal methods as well as molecular and biochemical approaches. We apply our manual and automated approaches from the level of single leaves and plants in the laboratory and greenhouse to the canopy and field scale and finally in the frame of the FLEX satellite mission to the globe.

In our group with currently about 30 members, we span the spatial scales from the leaf to the field and the globe. Fluorescence techniques are the main approach that allows us to link processes across a wide range of scales.

Sub Groups

Understanding the regulation of carotenoid biosynthesis and photoacclimation under dynamically changing environments

We aim to better understand molecular and cellular processes that control acclimatory modulation of photosynthesis and photoprotection under fluctuating and dynamic environmental conditions. By combining novel set-ups and sensors we study quantitatively the phenotypic changes arising at different levels (gene expression, biochemical composition, growth and morphology) under non-steady-state conditions in the laboratory and the greenhouse

References

Matsubara, S., Schneider, T., Maurino, V. G., Dissecting Long-Term Adjustments of Photoprotective and Photo-Oxidative Stress Acclimation Occurring in Dynamic Light Environments. Frontiers in Functional Plant Ecology 7, 1690 (2016).

Lätari, K., Wüst, F., Hübner, M., Schaub, P., Matsubara, S., et al., Tissue-Specific Apocarotenoid Glycosylation Contributes to Carotenoid Homeostasis in Arabidopsis Leaves. Plant Physiology 168(4), 1550 - 1562 (2015).

Team

PD Dr. Shizue Matsubara

Anh Banh
Dr. Einhard Kleist
Marlene Müller
Maria Paola Puggioni
Edelgard Schölgens

Non-invasive field phenotyping to better understand and link leaf photosynthesis and transport processes to canopy functioning

We aim to develop knowledge driven phenotyping approaches that close the gap between phenotyping in the greenhouse and field-phenotyping. We use our portfolio of measurement approaches to scale cell and leaf level processes to the canopy and to develop a better scientific understanding of the seasonal dynamics of relevant canopy traits in crops.

References

Müller-Linow, M., Pinto-Espinosa, F., Scharr, H., Rascher, U., The leaf angle distribution of natural plant populations: assessing the canopy with a novel software tool. Plant Methods 11(1), 11 (2015).

Pinto, F., Müller-Linow, M., Schickling, A., Cendrero, P., Rascher, U., et al., Multiangular Observation of Canopy Sun-Induced Chlorophyll Fluorescence by Combining Imaging Spectroscopy and Stereoscopy. Remote Sensing 9(5), 415 (2017).

Team

Dr. Onno Muller

Kelvin Acebron
Dr. Pilar Cendrero
Laura Freiwald
Dr. Christoph Jedmowski
Dr. Laura Junker
Beat Keller
Marlene Müller
Ines Munoz-Fernandez
Luka Olbertz
Vikas Pingle
Edelgard Schölgens
Angelina Steier
Marie Theiss
Stefan Thomas
Dr. Anna van Doorn
Norman Wilke

field_phenotyping

Proximity and remote sensing for a better understanding of the spatio-temporal dynamics of photosynthesis by using hyperspectral and sun-induced fluorescence techniques

We develop new high resolution reflectance and fluorescence techniques to map energy conversion in natural canopies. Our special focus is in exploiting the information content of vegetation fluorescence to measure photosynthetic efficiency and early physiological stress indicators. We are fundamentally involved in the preparation of the European Earth Explorer Satellite Mission FLEX, which will be launched in 2022 and which will provide global maps of actual vegetation photosynthesis and plant stress by the measurement of solar induced fluorescence.

References

Ač, A., Malenovský, Z., Olejníčková, J., Gallé, A., Rascher, U., et al., G., Meta-analysis assessing potential of steady-state chlorophyll fluorescence for remote sensing detection of plant water, temperature and nitrogen stressplant. Remote sensing of environment 168, 420 - 436 (2015).

Rascher, U., Alonso, L., Burkart, A., Cilia, C., Cogliati, S., et al.,
Sun-induced fluorescence - a new probe of photosynthesis: First maps from the imaging spectrometer  HyPlant. Global Change Biology 21(12), 4673 - 4684 (2015).

Team

Prof. Dr. Uwe Rascher

Kelvin Acebron
Dr. Andreas Burkart
Dr. Pilar Cendrero
Dzhaner Emin
Laura Freiwald
Sascha Heinemann
Dr. Maria Matveeva
Marlene Müller
Ines Munoz-Fernandez
Vikas Pingle
Patrick Rademske
Dr. Anke Schickling
Edelgard Schölgens
Dr. Bastian Siegmann
Angelina Steier
Stefan Thomas
Dr. Anna van Doorn
Norman Wilke

fluorescence_klein



Servicemeu

Homepage