ArticleThe Plant cell2022
Electron tomography of prolamellar bodies and their transformation into grana thylakoids in cryofixed Arabidopsis cotyledons.
Article in The Plant cell, 2022. 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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15 citing papers in PubMed, 20 citations in OpenAlex.
- Arabidopsis GOLDEN2-LIKE transcription factors interact with ABA-INSENSITIVE 4 to modulate cotyledon greening in light-exposed etiolated seedlings.Journal of experimental botany · 2026Article
- Turning over a green leaf: integrating light signals toward chloroplast establishment.Plant physiology · 2026Review
- Structures of LPOR-Chlide complexes reveal the structural basis of membrane remodeling and photocatalysis.Nature communications · 2026Article
- Mechanisms underlying green flower formation.Horticulture research · 2026Article
- Electron microscopy-based three-dimensional subcellular imaging of plant male gametophyte.Journal of integrative plant biology · 2026Review
- High-frequency biparental inheritance of plant mitochondria upon chilling stress and loss of a genome-degrading nuclease.Nature plants · 2026Article
- Thylakostasis: key factors in thylakoid membrane organization with emphasis on biogenesis and remodeling proteins in vascular plants.Plant & cell physiology · 2025Review
- Article
- Insight into the genetics of a novel white-striped leaf in rice.Frontiers in plant science · 2025Article
- De-etiolation is Almost Color Blind: The Study of Photosynthesis Awakening under Blue and Red Light.Plant & cell physiology · 2024Article
- Vacuolar degradation of plant organelles.The Plant cell · 2024Review
- Assays to Study Mitophagy in Plants.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Observation of Vacuoles in Arabidopsis Developing Pollen Grains with Whole-Cell Electron Tomography.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Plantorganelle Hunter is an effective deep-learning-based method for plant organelle phenotyping in electron microscopy.Nature plants · 2023Article
- Lipid polymorphism of plant thylakoid membranes. The dynamic exchange model - facts and hypotheses.Physiologia plantarumReview
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The para-crystalline structures of prolamellar bodies (PLBs) and light-induced etioplast-to-chloroplast transformation have been investigated via electron microscopy. However, such studies suffer from chemical fixation artifacts and limited volumes of 3D reconstruction. Here, we examined Arabidopsis thaliana cotyledon cells by electron tomography (ET) to visualize etioplasts and their conversion into chloroplasts. We employed scanning transmission ET to image large volumes and high-pressure freezing to improve sample preservation. PLB tubules were arranged in a zinc blende-type lattice-like carbon atoms in diamonds. Within 2 h after illumination, the lattice collapsed from the PLB exterior and the disorganized tubules merged to form thylakoid sheets (pre-granal thylakoids), which folded and overlapped with each other to create grana stacks. Since the nascent pre-granal thylakoids contained curved membranes in their tips, we examined the expression and localization of CURT1 (CURVATURE THYLAKOID1) proteins. CURT1A transcripts were most abundant in de-etiolating cotyledon samples, and CURT1A was concentrated at the PLB periphery. In curt1a etioplasts, PLB-associated thylakoids were swollen and failed to form grana stacks. In contrast, PLBs had cracks in their lattices in curt1c etioplasts. Our data provide evidence that CURT1A is required for pre-granal thylakoid assembly from PLB tubules during de-etiolation, while CURT1C contributes to cubic crystal growth in the dark.
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