Many plant species change the positioning of chloroplasts to optimize light absorption. This protocol describes how to use a straightforward, home-built instrument to investigate chloroplast movement in Arabidopsis thaliana leaves using changes in the transmission of light through a leaf as a proxy.
Königer, M., Knapp, A., Futami, L., Kohler, S. Using Changes in Leaf Transmission to Investigate Chloroplast Movement in Arabidopsis thaliana. J. Vis. Exp. (173), e62881, doi:10.3791/62881 (2021).