Abstract
Fourteen genes encoding proteins of the light harvesting complex (Lhc) are expressed in a photoautotrophic cell culture from the wild species of tomato (Lycopersicon peruvianum). For two genes, Lhca2 (cab7) and Lhcb2*1 (cab4), a rhythmic oscillation of the transcript accumulation is observed under light/dark and constant dark conditions indicating that gene expression is controlled by a circadian clock in the tomato cell culture. The circadian expression of the Lhc genes remains present after application of 2,2′-dipyridyl. However, the amplitude of Lhc mRNA oscillations and the photosynthetic capacity (Fmax/Fo) decrease significantly. The transcript accumulations of psbA, rbcS and rbcL are less or not at all affected by 2,2′-dipyridyl.
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Winter, L., Stöcker, S., Merforth, N. et al. Circadian oscillations of Lhc mRNAs in a photoautotrophic cell culture of Lycopersicon peruvianum . Photosynth Res 47, 77–84 (1996). https://doi.org/10.1007/BF00017755
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DOI: https://doi.org/10.1007/BF00017755