Article
The plastid sigma factor SIG1 maintains photosystem I activity via regulated expression of the psaA operon in rice chloroplasts.
The Plant journal : for cell and molecular biology - 1 Oct 2007
Tozawa Yuzuru, Teraishi Masayoshi, Sasaki Tadamasa, Sonoike Kintake, Nishiyama Yoshitaka, Itaya Mitsuhiro, Miyao Akio, Hirochika Hirohiko
Abstract excerpt
Sigma factors encoded by the nucleus of plants confer promoter specificity on the bacterial-type RNA polymerase in chloroplasts. We previously showed that transcripts of OsSIG1, which encodes one such sigma factor in rice, accumulate relatively late during leaf development. We have now isolated and characterized two allelic mutants of OsSIG1, in which OsSIG1 is disrupted by insertion of the retrotransposon Tos17,...
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