Transition from glycogen to starch metabolism in Archaeplastida
- In this opinion article we propose a scenario detailing how two crucial components have evolved simultaneously to ensure the transition of glycogen to starch in the cytosol of the Archaeplastida last common ancestor: (i) the recruitment of an enzyme from intracellular Chlamydiae pathogens to facilitate crystallization of alpha-glucan chains; and (ii) the evolution of novel types of polysaccharide (de)phosphorylating enzymes from preexisting glycogen (de)phosphorylation host pathways to allow the turnover of such crystals. We speculate that the transition to starch benefitted Archaeplastida in three ways: more carbon could be packed into osmotically inert material; the host could resume control of carbon assimilation from the chlamydial pathogen that triggered plastid endosymbiosis; and cyanobacterial photosynthate export could be integrated in the emerging Archaeplastida.
Author details: | Ugo Cencil, Felix Nitschke, Martin SteupORCiDGND, Berge A. Minassian, Christophe ColleoniORCiD, Steven G. Ball |
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DOI: | https://doi.org/10.1016/j.tplants.2013.08.004 |
ISSN: | 1360-1385 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/24035236 |
Title of parent work (English): | Trends in plant science |
Publisher: | Elsevier |
Place of publishing: | London |
Publication type: | Review |
Language: | English |
Year of first publication: | 2014 |
Publication year: | 2014 |
Release date: | 2017/03/27 |
Tag: | Chlamydia-like bacteria; Lafora disease; evolution of plastids; polyglucan debranching reactions; starch and glycogen (de)phosphorylation; starch and glycogen metabolism |
Volume: | 19 |
Issue: | 1 |
Number of pages: | 11 |
First page: | 18 |
Last Page: | 28 |
Funding institution: | French Ministry of Education; Centre National de la Recherche Scientifique (CNRS); Agence Nationale pour la Recherche (Menage a Trois); European Union; Region Nord Pas de Calais |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
Peer review: | Referiert |