Fig. 2.

Response of non-photochemical quenching (NPQ) and effective quantum yield (Φ _PSII) in Dionaea muscipula after stimulation of trigger hairs (t = 0) (trap temperature 25 °C, light intensity 150 µmol m^–2 s^–1 PAR, CO₂ concentration 400 µL L^–1, relative air humidity 65 %). Measurements were conducted using the PAM Fluorometer 3033-FL-Module of the gas exchange measuring system GFS-3000 (Walz) concurrently with net assimilation measurements (Fig. 1). Data shown are mean values based on five independent measurements.