“…These findings implicated Mg-chelatase, Mg-PPIX biosynthesis, or chloroplastic tetrapyrrole metabolism in the plastid-to-nucleus signaling that regulates photosynthesis-related gene expression (Mochizuki et al, 2001). Data generated using distinct experimental approaches provide evidence that Mg-chelatase, Mg-PPIX biosynthesis, or chloroplastic tetrapyrrole metabolism can affect gene expression in Arabidopsis and other plants (Oster et al, 1996;Papenbrock et al, 2000b;Vinti et al, 2000;La Rocca et al, 2001McCormac and Terry, 2002;Strand et al, 2003;Alawady and Grimm, 2005;Gadjieva et al, 2005;Ankele et al, 2007;Zhang et al, 2011), Chlamydomonas reinhardtii (Johanningmeier and Howell, 1984;Kropat et al, 1997Kropat et al, , 2000Falciatore et al, 2005;Vasileuskaya et al, 2005;von Gromoff et al, 2008), and Synechocystis (Osanai et al, 2009). Mg-PPIX also regulates DNA replication in Cyanidioschyzon merolae and tobacco (Nicotiana tabacum) BY-2 cell cultures (Kobayashi et al, 2009).…”