ArticleFrontiers in plant science2015
Protein import into isolated pea root leucoplasts.
Article in Frontiers in plant science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Identification of transit peptides that boost plastid protein import in different tissues and plant species.Nature plants · 2025Article
- High-efficiency leucoplast transit peptides for manipulating plastid protein production.Nature plants · 2025Article
- New Insights into the Chloroplast Outer Membrane Proteome and Associated Targeting Pathways.International journal of molecular sciences · 2022Review
- Tissue-Specific Regulation of Plastid Protein Import via Transit-Peptide Motifs.The Plant cell · 2020Article
- Article
- Developmental regulation of protein import into plastids.Photosynthesis research · 2018Review
- Transit peptide elements mediate selective protein targeting to two different types of chloroplasts in the single-cell C4 species Bienertia sinuspersici.Scientific reports · 2017Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Leucoplasts are important organelles for the synthesis and storage of starch, lipids and proteins. However, molecular mechanism of protein import into leucoplasts and how it differs from that of import into chloroplasts remain unknown. We used pea seedlings for both chloroplast and leucoplast isolations to compare within the same species. We further optimized the isolation and import conditions to improve import efficiency and to permit a quantitative comparison between the two plastid types. The authenticity of the import was verified using a mitochondrial precursor protein. Our results show that, when normalized to Toc75, most translocon proteins are less abundant in leucoplasts than in chloroplasts. A precursor shown to prefer the receptor Toc132 indeed had relatively more similar import efficiencies between chloroplasts and leucoplasts compared to precursors that prefer Toc159. Furthermore we found two precursors that exhibited very high import efficiency into leucoplasts. Their transit peptides may be candidates for delivering transgenic proteins into leucoplasts and for analyzing motifs important for leucoplast import.
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