ArticleThe Plant cell2025
Cyanoglobule lipid droplets are a stress-responsive metabolic compartment of cyanobacteria and the progenitor of plant plastoglobules.
Article in The Plant cell, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Adaptation of lipid metabolism of the polyextremophilic cyanobacterium Cyanobacterium aponinum PCC 10605 to adverse environmental conditions.BMC plant biology · 2026Article
- Article
- Integrative comparative proteomics identifies core differentially expressed proteins and pathways for drought tolerance by exploiting contrasting rice varieties.Frontiers in plant science · 2026Article
- Preparation and Negative Staining for Visualization of Cyanoglobule Lipid Droplets Using Transmission Electron Microscopy.Bio-protocol · 2025Article
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4 authors.
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Abstract
Lipid droplets (LDs) are well integrated into multiple facets of cellular physiology and potentially represent an effective platform for engineering heterologous metabolic pathways. LDs of chloroplasts, known as plastoglobules, mediate stress tolerance through dynamic and reversible changes to morphology and molecular composition. However, the dynamics and functional role(s) of cyanobacterial LDs are almost wholly unknown. Here, we have characterized the morphological behavior and quantitative proteome and lipidome of cyanobacterial LDs of Synechocystis sp. PCC 6803 grown under permissive or phosphorous-deficient media for 7 d. Our results show that cyanobacterial LDs are a metabolically active subcompartment of cyanobacteria with dynamic morphology and composition. The cyanobacterial LD proteome and lipidome are qualitatively similar to those of plant plastoglobules including an enrichment of prenyl lipids and the presence of twelve orthologs of Arabidopsis thaliana plastoglobule proteins. In view of these results, we propose that cyanobacterial LDs be named as cyanoglobules. In addition, we established that various plastoquinone derivatives containing hydroxyl and/or acyl groups on their solanesyl tail or quinone head accumulate in cyanoglobules. Deletion mutants of selected cyanoglobule proteins exhibit impairments in growth, pigmentation, and photosynthesis. Our results collectively support an evolutionary relationship between cyanoglobules and plastoglobules and reveal a possible central role for cyanoglobules in organismal physiology and stress adaptation.
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