PLANT BIOLOGY Correction for “A plant porphyria related to defects in plastid import of protochlorophyllide oxidoreductase A,” by Stephan Pollmann, Armin Springer, Frank Buhr, Abder Lahroussi, Iga Samol, Jean-Marc Bonneville, Gabrielle Tichtinsky, Diter von Wettstein, Christiane Reinbothe, and Steffen Reinbothe, which appeared in issue 6, February 6, 2007, of Proc Natl Acad Sci USA (104:2019–2023; first published January 29, 2007; 10.1073/pnas.0610934104).
The undersigned authors wish to note that: “We have been associated with part of the experimental work described therein, yet now disagree with the title and main conclusion of the article. (i) Among the backcrossed lines homozygous for oep16-1 T-DNA insertion that we reanalyzed after publication, one did not show a bleaching phenotype during de-etiolation. Another line showed bleaching of etiolated seedlings upon light exposure, yet displayed wildtype levels of the PORA protein by Western blotting, in its processed form (e.g., mature, imported into etioplasts). The flu-like bleaching phenotype in part of the descent of this oep16-1 mutant stock therefore appears unlinked with the lack of OEP16-1 expression or with a defect in PORA import, in accordance with the recent report of Pudelski et al. (2009) [PNAS 106:12201–12206]. (ii) We were never granted access to the complete set of original data, in particular to those supporting Figs. 2G, 4 C and D, and 6B. Therefore, we wonder about the quality of the underlying work and have expressed doubts concerning what is concluded from these pictures. It must also be made clear that the flu mutant used is not a published allele but contains a T-DNA insertion (SALK_002383) and displays a weak phenotype.”
Jean-Marc Bonneville
Gabrielle Tichtinsky