1. Shedding Light on Plant Respiration Jordan Lubkeman Princeton Environmental Institute Bender Lab, Department of Geosciences Princeton University Advisors: Michael Bender, Geosciences and Paul Gauthier, Geosciences Supported by the Smith-Newton Undergraduate Research Fund

2. The Importance of Plant Photosynthesis and Respiration: the Terrestrial Carbon Cycle 120 GtC yr -1 60 GtC yr -1 6 GtC yr -1 Data source: IPCC 2007

3. Inhibition of Respiration in the Light Source: Griffin K. & Heskel, M. (2013). Breaking the Cycle: How Light, CO2 and O2 Affect Plant Respiration. Plant, Cell, and Environment, 36. 498- 500.

4. Methods

5. Experimental Design Source: Paul Gauthier

6. Results C3C4 Light Intensity (μmol PAR m -2 s -1 ) Oxygen production (μmol O 2 m -2 s -1 ) 75%65%

7. Conclusions & Acknowledgements