... remainat pH 10. This pH-dependent alteration is reversible betweenpH 6 and 10. The pK a value of this acid–base transition is estimated based on the increase of absorbance at 418 nm aspH increases. ... chloroplast genome of the redalga Porphyra purpurea. PlantCell 5, 465–475.35. Kaneko, T., Tanaka, A. , Sato, S., Kotani, H., Sazuka, T.,Miyajima, N., Sugiura, M. & Tabata, S. (1996) Sequence analysisof ... Synechocystis sp.PCC 6803. Plant J. 15, 99–107.37. Kaneko, T., Nakamura, Y., Wolk, C.P., Kuritz, T., Sasamoto, S.,Watanabe, A. , Iriguchi, M., Ishikawa, A. , Kawashima, K.,Kimura,T.,Kishida,Y.,Kohora,M.,Matsumoto,M.,Matsuno, A. ,...