ArticleEukaryotic cell2008
Pathway of cytosolic starch synthesis in the model glaucophyte Cyanophora paradoxa.
Article in Eukaryotic cell, 2008. 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, 46 citations in OpenAlex.
- Solving the Insoluble: Regulation of α-Polyglucan Solubility and Functionality in Nature.Molecules (Basel, Switzerland) · 2026Review
- On the origin of fatty acid biosynthesis in Archaeplastida.Journal of experimental botany · 2025Article
- Alpha-glucans from bacterial necromass indicate an intra-population loop within the marine carbon cycle.Nature communications · 2024Article
- Crystal Structures of theFrontiers in plant science · 2018Article
- The dinoflagellate Lingulodinium polyedrum responds to N depletion by a polarized deposition of starch and lipid bodies.PloS one · 2014Article
- Metabolic effectors secreted by bacterial pathogens: essential facilitators of plastid endosymbiosis?The Plant cell · 2013Article
- The metabolite transporters of the plastid envelope: an update.Frontiers in plant science · 2011Article
- A rhodopsin-like protein in Cyanophora paradoxa: gene sequence and protein immunolocalization.Cellular and molecular life sciences : CMLS · 2010Article
- Genetic dissection of floridean starch synthesis in the cytosol of the model dinoflagellate Crypthecodinium cohnii.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- The heterotrophic dinoflagellate Crypthecodinium cohnii defines a model genetic system to investigate cytoplasmic starch synthesis.Eukaryotic cell · 2008Article
- Early gene duplication within chloroplastida and its correspondence with relocation of starch metabolism to chloroplasts.Genetics · 2008Article
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Authors and funding
15 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The nature of the cytoplasmic pathway of starch biosynthesis was investigated in the model glaucophyte Cyanophora paradoxa. The storage polysaccharide granules are shown to be composed of both amylose and amylopectin fractions, with a chain length distribution and crystalline organization similar to those of green algae and land plant starch. A preliminary characterization of the starch pathway demonstrates that Cyanophora paradoxa contains several UDP-glucose-utilizing soluble starch synthase activities related to those of the Rhodophyceae. In addition, Cyanophora paradoxa synthesizes amylose with a granule-bound starch synthase displaying a preference for UDP-glucose. A debranching enzyme of isoamylase specificity and multiple starch phosphorylases also are evidenced in the model glaucophyte. The picture emerging from our biochemical and molecular characterizations consists of the presence of a UDP-glucose-based pathway similar to that recently proposed for the red algae, the cryptophytes, and the alveolates. The correlative presence of isoamylase and starch among photosynthetic eukaryotes is discussed.
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