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Wild-type A.thaliana plants accession Colu … Wild-type A.thaliana plants accession Columbia (Col-0) and the mutants mto1 (Inaba et al. 1994) and tt4 (Shikazono et al. 2003) of Col-0 background were obtained from Dr. Naito, Hokkaido University, and Dr. Kitamura, Japan Atomic Energy Research Institute, respectively. The sterilized seeds were stratified at 5°C for 2 d, and were successively sown on Murashige and Skoog (MS) medium containing 1% sucrose. Plants were cultivated in controlled growth chambers at 22°C in 16-h light and 8-h dark conditions for 18 d. The aerial regions were harvested with 20 different biological replicates, 6 h after the onset of the bright phase. , 6 h after the onset of the bright phase.
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