ArticlePlant communications2023
Tetrapyrrole biosynthesis pathway regulates plastid-to-nucleus signaling by controlling plastid gene expression in plants.
Article in Plant communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 12 citations in OpenAlex.
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- N-myristoylation-mediated shuttling of TaMP from plasma membrane to chloroplasts increases wheat susceptibility to rust fungi.Nature plants · 2026Article
- Bioinformatics Analysis Reveals PPR Genes Modulation by Ahyp-miR0005 Under Abiotic Stress Across Diverse Plant Species.Plants (Basel, Switzerland) · 2025Article
- Genome-wide identification and functional analysis of PEL gene family in Brassica napus L.BMC plant biology · 2025Article
- Characterization of a tomato chlh mis-sense mutant reveals a new function of ChlH in fruit ripening.Plant biotechnology journal · 2025Article
- Unveiling the Role of SlRNC1 in Chloroplast Development and Global Gene Regulation in Tomato Plants.International journal of molecular sciences · 2024Article
- GhCTSF1, a short PPR protein with a conserved role in chloroplast development and photosynthesis, participates in intron splicing of rpoC1 and ycf3-2 transcripts in cotton.Plant communications · 2024Article
- Redox regulation, thioredoxins, and glutaredoxins in retrograde signalling and gene transcription.Journal of experimental botany · 2023Review
- Advances in Iron Retrograde Signaling Mechanisms and Uptake Regulation in Photosynthetic Organisms.Methods in molecular biology (Clifton, N.J.) · 2023Article
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19 authors at 3 institutions in 1 country.
Funding
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Abstract
Plastid-to-nucleus retrograde signaling coordinates nuclear gene expression with chloroplast developmental status and is essential for the photoautotrophic lifestyle of plants. Previous studies have established that tetrapyrrole biosynthesis (TPB) and plastid gene expression (PGE) play essential roles in plastid retrograde signaling during early chloroplast biogenesis; however, their functional relationship remains unknown. In this study, we generated a series of rice TPB-related gun (genome uncoupled) mutants and systematically analyzed their effects on nuclear and plastid gene expression under normal conditions or when subjected to treatments with norflurazon (NF; a noncompetitive inhibitor of carotenoid biosynthesis) and/or lincomycin (Lin; a specific inhibitor of plastid translation). We show that under NF treatment, expression of plastid-encoded polymerase (PEP)-transcribed genes is significantly reduced in the wild type but is derepressed in the TPB-related gun mutants. We further demonstrate that the derepressed expression of PEP-transcribed genes may be caused by increased expression of the PEP core subunit and nuclear-encoded sigma factors and by elevated copy numbers of plastid genome per haploid genome. In addition, we show that expression of photosynthesis-associated nuclear genes (PhANGs) and PEP-transcribed genes is correlated in the rice TPB-related gun mutants, with or without NF or Lin treatment. A similar correlation between PhANGs and PGE is also observed in the Arabidopsis gun4 and gun5 mutants. Moreover, we show that increased expression of PEP-transcribed plastid genes is necessary for the gun phenotype in NF-treated TPB-related gun mutants. Further, we provide evidence that these TPB-related GUN genes act upstream of GUN1 in the regulation of retrograde signaling. Taken together, our results suggest that the TPB-related GUN genes control retrograde plastid signaling by regulating the PGE-dependent retrograde signaling pathway.
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