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Consortium of Swiss Academic Libraries

Chlorophyll breakdown in oilseed rape

Hörtensteiner, Stefan ; Kräutler, Bernhard

In: Photosynthesis Research, 2000, vol. 64, no. 2-3, p. 137-146

Université de Neuchâtel

Identification of Plastoglobules as a Site of Carotenoid Cleavage

Rottet, Sarah ; Devillers, Julie ; Glauser, Gaétan ; Douet, Véronique ; Besagni, Céline ; Kessler, Felix

In: Frontiers in Plant Science, 2016, vol. 7, p. Article 1855

Carotenoids play an essential role in light harvesting and protection from excess light. During chloroplast senescence carotenoids are released from their binding proteins and are eventually metabolized. Carotenoid cleavage dioxygenase 4 (CCD4) is involved in carotenoid breakdown in senescing leaf and desiccating seed, and is part of the proteome of plastoglobules (PG), which are...

Université de Fribourg

Reduced lifespan and increased ageing driven by genetic drift in small populations

Lohr, Jennifer N. ; David, Patrice ; Haag, Christoph R.

In: Evolution, 2014, vol. 68, no. 9, p. 2494–2508

Explaining the strong variation in lifespan among organisms remains a major challenge in evolutionary biology. Whereas previous work has concentrated mainly on differences in selection regimes and selection pressures, we hypothesize that differences in genetic drift may explain some of this variation. We develop a model to formalize this idea and show that the strong positive relationship between...

Université de Fribourg

Comparative mutant analysis of Arabidopsis ABCC-type ABC transporters: AtMRP2 contributes to detoxification, vacuolar organic anion transport and chlorophyll degradation

Frelet-Barrand, Annie ; Kolukisaoglu, H. Üner ; Plaza, Sonia ; Rüffer, Maika ; Azevedo, Louis ; Hörtensteiner, Stefan ; Marinova, Krasimira ; Weder, Barbara ; Schulz, Burkhard ; Klein, Markus

In: Plant and Cell Physiology, 2008, vol. 

The enormous metabolic plasticity of plants allows detoxification of many harmful compounds that are generated during biosynthetic processes or are present as biotic or abiotic toxins in their environment. Derivatives of toxic compounds such as glutathione conjugates are moved into the central vacuole via ATP-binding cassette (ABC)-type transporters of the multidrug resistance-associated protein...