Unraveling the evolution of an extraordinary photosynthesis in a tropical tree species

Plants use sunlight to convert water and carbon dioxide into energy-rich sugars and oxygen in various ways (photosynthesis). Drought is a major challenge in this process. A research team led by Wolfram Weckwerth at the University of Vienna has now demonstrated how a particularly water-efficient variant of this process (CAM) has evolved in diverse ways within a single tropical tree genus.

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