Photoacoustic spectroscopy of Anacystis nidulans. II. Characterization of pigment holochroms and thermal deactivation spectrum.
The photoacoustic spectrum of Anacystis nidulans recorded at room temperature is qualitatively similar to low-temperature absorption or fluorescence excitation spectra. The bands of pigment holochroms are well resolved compared to room-temperature absorption spectra. The thermal deactivation spectrum obtained by extrapolating acoustic data for an infinitely thin sample indicates that the photosynthetic efficiency decreases from phycocyanin to chlorophyll a and carotenoids.
D000458:Cyanobacteria / Q000032:analysis*; D010777:Photochemistry; D010860:Pigments, Biological / Q000032:analysis* / Q000502:physiology; D013057:Spectrum Analysis / Q000379:methods; D013696:Temperature
D010860:Pigments, Biological