Chloroplast development in Arabidopsis thaliana requires the nuclear-encoded transcription factor Sigma B

Yumiko Shirano, Hiroshi Shimada, Kengo Kanamaru, Makoto Fujiwara, Kan Tanaka, Hideo Takahashi, Kazutoshi Unno, Shuusei Sato, Satoshi Tabata, Hiroaki Hayashi, Chikahiro Miyake, Akiho Yokota, Daisuke Shibata

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Development of plastids into chloroplasts, the organelles of photosynthesis, is triggered by light. However, little is known of the factors involved in the complex coordination of light-induced plastid gene expression, which must be directed by both nuclear and plastid genomes. We have isolated an Arabidopsis mutant, abc1, with impaired chloroplast development, which results in a pale green leaf phenotype. The mutated nuclear gene encodes a sigma factor, SigB, presumably for the eubacterial-like plastid RNA polymerase. Our results provide direct evidence that a nuclear-derived prokaryotic-like SigB protein, plays a critical role in the coordination of the two genomes for chloroplast development. (C) Federation of European Biochemical Societies.

Original languageEnglish
Pages (from-to)178-182
Number of pages5
JournalFEBS Letters
Volume485
Issue number2-3
DOIs
Publication statusPublished - 2000 Nov 24
Externally publishedYes

Keywords

  • Arabidopsis thaliana
  • Chloroplast development
  • RNA polymerase
  • SigB
  • Sigma factor

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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