NCP activates chloroplast transcription by controlling phytochrome-dependent dual nuclear and plastidial switches

Emily J. Yang, Chan Yul Yoo, Jiangxin Liu, He Wang, Jun Cao, Fay-Wei Li, Kathleen M. Pryer, Tai-ping Sun, Detlef Weigel, Pei Zhou () and Meng Chen ()
Additional contact information
Emily J. Yang: University of California
Chan Yul Yoo: University of California
Jiangxin Liu: Duke University Medical Center
He Wang: University of California
Jun Cao: Max Planck Institute for Developmental Biology
Fay-Wei Li: Duke University
Kathleen M. Pryer: Duke University
Tai-ping Sun: Duke University
Detlef Weigel: Max Planck Institute for Developmental Biology
Pei Zhou: Duke University Medical Center
Meng Chen: University of California

Nature Communications, 2019, vol. 10, issue 1, 1-13

Abstract: Abstract Phytochromes initiate chloroplast biogenesis by activating genes encoding the photosynthetic apparatus, including photosynthesis-associated plastid-encoded genes (PhAPGs). PhAPGs are transcribed by a bacterial-type RNA polymerase (PEP), but how phytochromes in the nucleus activate chloroplast gene expression remains enigmatic. We report here a forward genetic screen in Arabidopsis that identified NUCLEAR CONTROL OF PEP ACTIVITY (NCP) as a necessary component of phytochrome signaling for PhAPG activation. NCP is dual-targeted to plastids and the nucleus. While nuclear NCP mediates the degradation of two repressors of chloroplast biogenesis, PIF1 and PIF3, NCP in plastids promotes the assembly of the PEP complex for PhAPG transcription. NCP and its paralog RCB are non-catalytic thioredoxin-like proteins that diverged in seed plants to adopt nonredundant functions in phytochrome signaling. These results support a model in which phytochromes control PhAPG expression through light-dependent double nuclear and plastidial switches that are linked by evolutionarily conserved and dual-localized regulatory proteins.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-10517-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10517-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-10517-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().