Corrigendum

Abstract

Since its publication, the authors of Pfalz et al. (2015) have brought to our attention an error in their article. During assembly of Fig. 4(b) of their article (page 1030) the gel image for trnG-UUC was inadvertently used to depict trnE-UUC. The correct Fig. 4 is printed below.

White Leaf and Panicle 2, encoding a PEP-associated protein, is required for chloroplast biogenesis under heat stress in rice

“…The PEP-mediated chloroplast transcriptional machinery is indispensable to the maintenance of highly efficient photosynthesis, which is essential for the plant’s growth ( Demarsy et al , 2006 ; Kusumi and Iba, 2014 ). In Arabidopsis, many PAP mutants associated with this transcriptional machinery have been identified, such as pap1 , pap2 , pap3 , pap5 , pap6 , and pap10 , in which the transcription levels of NEP-mediated genes were elevated and transcription levels of PEP-mediated genes were decreased ( Arsova et al , 2010 ; Gilkerson et al , 2012 ; Pfalz et al , 2006 ). Here, we identified a novel PEP-associated protein, WLP2, which is a homolog of AtFLN1 (PAP6) in Arabidopsis ( Fig.…”

“…PEP is the dominating RNA polymerase in mature chloroplasts, and the mechanism of regulation of its activity is complicated and elusive ( Kremnev and Strand, 2014 ; Pfalz et al , 2006 ). In Arabidopsis, thioredoxin Z (TRXz) and its two target proteins FLN1 and FLN2 can form a complex that regulates PEP activity during PEP-dependent transcription.…”

“…Previous investigations suggested that PAPs, which display potential functions such as DNA/RNA metabolism, PEP complex protection, and redox regulation, can affect the activity and integrity of the PEP complex to further regulate the chloroplast transcriptional machinery ( Pfalz et al , 2016 ; Pfannschmidt et al , 2015 ). Studies on knockout mutants of PAP genes with white/ivory leaves, lower or missing PEP activity, and higher NEP activity have supported the notion that PAPs are indispensable for PEP-mediated transcription.…”

“…Studies on knockout mutants of PAP genes with white/ivory leaves, lower or missing PEP activity, and higher NEP activity have supported the notion that PAPs are indispensable for PEP-mediated transcription. Recently, at least 12 different PAPs have been identified in Arabidopsis ( Pfalz et al , 2006 , 2016 ; Steiner et al , 2011 ). PAP1, which contains a DNA-binding SAP domain, was first reported as a chloroplast nucleoid-localized transcription factor in the PEP complex that mediates DNA/RNA binding ( Yagi et al , 2012 ).…”