ArticleScientific reports2019
Deletion of BSG1 in Chlamydomonas reinhardtii leads to abnormal starch granule size and morphology.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 28 citations in OpenAlex.
- EPOS1 is required for normal pyrenoid starch sheath formation and efficiency of the COThe New phytologist · 2026Article
- Gelatinization and Pasting Property of Small Granular Starch fromGels (Basel, Switzerland) · 2026Article
- The pyrenoid: the eukaryotic CO2-concentrating organelle.The Plant cell · 2023Article
- BE3 is the major branching enzyme isoform required for amylopectin synthesis in CFrontiers in plant science · 2023Article
- Role of CD147 in the development and diagnosis of hepatocellular carcinoma.Frontiers in immunology · 2023Review
- New horizons for building pyrenoid-based CO2-concentrating mechanisms in plants to improve yields.Plant physiology · 2022Review
- Identification and Quantification of Glycans in Whole Cells: Architecture of Microalgal Polysaccharides Described by Solid-State Nuclear Magnetic Resonance.Journal of the American Chemical Society · 2021Article
- Prospects for Engineering Biophysical COAnnual review of plant biology · 2020Review
- Elucidation and genetic intervention of COJournal of biosciences · 2020Article
- A Rubisco-binding protein is required for normal pyrenoid number and starch sheath morphology inProceedings of the National Academy of Sciences of the United States of America · 2019Article
- Influences of Extraction Methods on Physicochemical and Functional Characteristics of Three New Bulbil Starches fromMolecules (Basel, Switzerland) · 2019Article
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chlamydomonas reinhardtii represents an ideal model microbial system to decipher starch metabolism. In this green algae, in cells growing in photosynthetic conditions, starch mainly accumulates as a sheath surrounding the pyrenoid while in cells subjected to a nutrient starvation, numerous starch granules are filling up the plastid stroma. The mechanisms underlying and regulating this switch from photosynthetic to storage starch metabolisms are not known. In this work, we have isolated a Chlamydomonas mutant strain containing a deletion in chromosome 2 which displays abnormal starch granule distribution. Under nitrogen starvation, this strain contains an additional starch granules population. These granules are twice as big as the wild-type granules and display characteristics of photosynthetic starch. Genetic and functional complementation analyses allowed us to identify the gene responsible for this original phenotype which was called BSG1 for "Bimodal Starch Granule". Possible roles of BSG1 in starch metabolism modifications during the transition from photosynthetic to starved growth conditions are discussed.
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