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. 2019 Sep 24;124(7):1211–1226. doi: 10.1093/aob/mcz149

Fig. 3.

Fig. 3.

Photochemical parameters measured in the field under natural irradiance (PPFD) for M. tessellata (dark green) and free-living P. crispa (light green). Upper panels show the response of actual photochemical efficiency of PSII (YII) to instantaneous irradiance over the thalli of (A) M. tessellata and (B) P. crispa. Data points are individual measurements (n = 122 per species). Lower panels show changes in the de-epoxidation index of the xanthophyll cycle in response to the last week’s cumulative irradiance (C) and precipitation (D). Data points are individual measurements (n = 23 per species).