ArticlePlant physiology2001
Chloroplast protein translocon components atToc159 and atToc33 are not essential for chloroplast biogenesis in guard cells and root cells.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Chloroplasts Protein Quality Control and Turnover: A Multitude of Mechanisms.International journal of molecular sciences · 2022Review
- Tissue-Specific Regulation of Plastid Protein Import via Transit-Peptide Motifs.The Plant cell · 2020Article
- Developmental regulation of protein import into plastids.Photosynthesis research · 2018Review
- Protein import into isolated pea root leucoplasts.Frontiers in plant science · 2015Article
- Border control: selectivity of chloroplast protein import and regulation at the TOC-complex.Frontiers in plant science · 2014Review
- The molecular basis for distinct pathways for protein import into Arabidopsis chloroplasts.The Plant cell · 2010Article
- Functional specialization amongst the Arabidopsis Toc159 family of chloroplast protein import receptors.The Plant cell · 2004Article
- Members of the Toc159 import receptor family represent distinct pathways for protein targeting to plastids.Molecular biology of the cell · 2004Article
- atToc159 is a selective transit peptide receptor for the import of nucleus-encoded chloroplast proteins.The Journal of cell biology · 2004Article
- Characterization of the targeting signal of dual-targeted pea glutathione reductase.Plant molecular biology · 2003Article
- The Arabidopsis ppi1 mutant is specifically defective in the expression, chloroplast import, and accumulation of photosynthetic proteins.The Plant cell · 2003Article
- Genomic reduction and evolution of novel genetic membranes and protein-targeting machinery in eukaryote-eukaryote chimaeras (meta-algae).Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2003Article
- Two chloroplastic protein translocation components, Tic110 and Toc75, are conserved in different plastid types from multiple plant species.Plant molecular biology · 2003Article
- In vivo analysis of the role of atTic20 in protein import into chloroplasts.The Plant cell · 2002Article
- Leaf-specific upregulation of chloroplast translocon genes by a CCT motif-containing protein, CIA 2.The Plant cell · 2001Article
Corrections and comments
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Authors and funding
2 authors.
Funding
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Abstract
Protein import into chloroplasts is mediated by a protein import apparatus located in the chloroplast envelope. Previous results indicate that there may be multiple import complexes in Arabidopsis. To gain further insight into the nature of this multiplicity, we analyzed the Arabidopsis ppi1 and ppi2 mutants, which are null mutants of the atToc33 and atToc159 translocon proteins, respectively. In the ppi2 mutant, in contrast to the extremely defective plastids in mesophyll cells, chloroplasts in guard cells still contained starch granules and thylakoid membranes. The morphology of root plastids in both mutants was similar to that in wild type. After prolonged light treatments, root plastids of both mutants and the wild type differentiated into chloroplasts. Enzymatic assays indicated that the activity of a plastid enzyme was reduced only in leaves but not in roots. These results indicated that both the ppi1 and ppi2 mutants had functional root and guard cell plastids. Therefore, we propose that import complexes are cell type specific rather than substrate or plastid specific.
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