Fig. 7From: Red algae acclimate to low light by modifying phycobilisome composition to maintain efficient light harvestingPhotosynthetic characteristics of L. glaciale under different light spectral compositions and PAR intensities after 9Ā months of experimentation. A Minimum saturating irradiance (Ek); B maximum obtained electron transport (ETRmax); C Maximum quantum yield (Fv/Fm; no units) and D photosynthetic efficiency in light-limiting conditions (Ī±; no units). Data presented as meanāĀ±āSE, Nā=ā4 individual aquaria per treatment. Data points are jittered horizontallyĀ around the experimental light intensity for visual clarity. Shallowā+āred spectrum at 350Ā Āµmol photons mā2Ā s.ā1 only. Statistical model test results of relationship between each measured parameter and light intensity/spectral treatments are provided in Additional File 1: Table S4Back to article page