Titre :

Transition from glycogen to starch metabolism in Archaeplastida

Auteur(s) :

Cenci, Ugo [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Nitschke, Felix [Auteur]
University of Potsdam = Universität Potsdam
Steup, Martin [Auteur]
University of Potsdam = Universität Potsdam
Minassian, Berge A. [Auteur]
The Hospital for sick children [Toronto] [SickKids]
Colleoni, Christophe [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Ball, Steven [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]

Titre de la revue :

Trends in Plant Science

Numéro :

19

Pagination :

18-28

Date de publication :

2014-01

ISSN :

13601385

Mot(s)-clé(s) en anglais :

evolution of plastids
starch and glycogen metabolism
polyglucan debranching reactions
starch and glycogen (de)phosphorylation
Chlamydia-like bacteria
Lafora disease

Discipline(s) HAL :

Chimie/Chimie théorique et/ou physique

Résumé en anglais : [en]

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) ...
Lire la suite >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 α-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.Lire moins >

Langue :

Anglais

Audience :

Non spécifiée

Établissement(s) :

CNRS
Université de Lille

Collections :

• Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576

Équipe(s) de recherche :

Génétique microbienne

Date de dépôt :

2020-02-12T15:45:08Z
2021-02-26T12:53:54Z