Starch 2015
DOI: 10.1007/978-4-431-55495-0_4
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The Transition from Glycogen to Starch Metabolism in Cyanobacteria and Eukaryotes

Abstract: '-1,4-linked glucan chains branched through '-1,6 glucosidic lineages define the most frequently found storage polysaccharides in living cells. These glucans come in two very distinct forms known as glycogen and starch. The small water-soluble glycogen particles distribute widely in Archaea, Bacteria, and heterotrophic eukaryotes, while semicrystalline solid starch seems to be restricted to photosynthetic eukaryotes. This review focusses on the so-called glycosylnucleotide-dependent pathway of starch and glyco… Show more

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Cited by 24 publications
(27 citation statements)
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References 196 publications
(249 reference statements)
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“…For example, there are 4 potential amylase enzymes in Cyanothece sp. ATCC 51142 (35). What role do they play, if any, in semi-amylopectin formation in this strain?…”
Section: Discussionmentioning
confidence: 95%
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“…For example, there are 4 potential amylase enzymes in Cyanothece sp. ATCC 51142 (35). What role do they play, if any, in semi-amylopectin formation in this strain?…”
Section: Discussionmentioning
confidence: 95%
“…Compared to many eubacteria, cyanobacteria have an unusually high number of isoforms for each step in the glycogen metabolic pathway. Ball et al (35) have recently examined the genomes of many sequenced cyanobacteria and eukaryotic algae that produce starch or semi-amylopectin and have developed a more complete and complex picture of the evolution of starch production. Indeed, they have rejected their earlier hypothesis that a single event resulted in starch acquisition by a host after an endosymbiotic event that led to plastid development in eukaryotic algae and subsequently in plants (26,31,36,37).…”
Section: Discussionmentioning
confidence: 99%
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“…The answer to this question seems at first glance to be no. Indeed, some cyanobacteria, cryptophytes, and alveolates apparently lack the GH13 GlgX-like enzymes, while SSIII/SSIV/GlgA2 glycogen (starch) synthases are lacking in red algae, cryptophytes, and alveolates (Ball et al, 2015). We believe that other, more distantly related CAZymes will be recruited to do the very same job, but this still needs to be demonstrated.…”
Section: Convergent Evolution Of Starch Aggregation In Cyanobacteria mentioning
confidence: 92%
“…Archaeplastida), stemming from primary plastid endosymbiosis and some of their secondary endosymbiosis derivatives (i.e. alveolates and cryptophytes; Cenci et al, 2014;Ball et al, 2015). Several lines of evidence suggest that starch metabolism evolved shortly after plastid endosymbiosis from a preexisting cytosolic eukaryotic glycogen metabolism enzyme network.…”
mentioning
confidence: 99%