Advanced search
1 file | 231.62 KB Add to list

Starch division and partitioning: a mechanism for granule propagation and maintenance in the picophytoplanktonic green alga Ostreococcus tauri

(2004) PLANT PHYSIOLOGY. 136(2). p.3333-3340
Author
Organization
Abstract
Whereas Glc is stored in small-sized hydrosoluble glycogen particles in archaea, eubacteria, fungi, and animal cells, photosynthetic eukaryotes have resorted to building starch, which is composed of several distinct polysaccharide fractions packed into a highly organized semicrystalline granule. In plants, both the initiation of polysaccharide synthesis and the nucleation mechanism leading to formation of new starch granules are currently not understood. Ostreococcus tauri, a unicellular green alga of the Prasinophyceae family, defines the tiniest eukaryote with one of the smallest genomes. We show that it accumulates a single starch granule at the chloroplast center by using the same pathway as higher plants. At the time of plastid division, we observe elongation of the starch and division into two daughter structures that are partitioned in each newly formed chloroplast. These observations suggest that in this system the information required to initiate crystalline polysaccharide growth of a new granule is contained within the preexisting polysaccharide structure and the design of the plastid division machinery.
Keywords
CHLAMYDOMONAS-REINHARDTII, ADP-GLUCOSE PYROPHOSPHORYLASE, BACTERIAL GLYCOGEN, AMYLOPECTIN, SYNTHASE, BIOSYNTHESIS, BIOGENESIS, ENZYME, PRASINOPHYCEAE, ARABIDOPSIS

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 231.62 KB

Citation

Please use this url to cite or link to this publication:

MLA
Ral, Jean-Philippe, Evelyne Derelle, Conchita Ferraz, et al. “Starch Division and Partitioning: a Mechanism for Granule Propagation and Maintenance in the Picophytoplanktonic Green Alga Ostreococcus Tauri.” PLANT PHYSIOLOGY 136.2 (2004): 3333–3340. Print.
APA
Ral, J.-P., Derelle, E., Ferraz, C., Wattebled, F., Farinas, B., Corellou, F., Buléon, A., et al. (2004). Starch division and partitioning: a mechanism for granule propagation and maintenance in the picophytoplanktonic green alga Ostreococcus tauri. PLANT PHYSIOLOGY, 136(2), 3333–3340.
Chicago author-date
Ral, Jean-Philippe, Evelyne Derelle, Conchita Ferraz, Fabrice Wattebled, Benoit Farinas, Florence Corellou, Alain Buléon, et al. 2004. “Starch Division and Partitioning: a Mechanism for Granule Propagation and Maintenance in the Picophytoplanktonic Green Alga Ostreococcus Tauri.” Plant Physiology 136 (2): 3333–3340.
Chicago author-date (all authors)
Ral, Jean-Philippe, Evelyne Derelle, Conchita Ferraz, Fabrice Wattebled, Benoit Farinas, Florence Corellou, Alain Buléon, Marie-Christine Slomianny, David Delvalle, Christophe d’ Hulst, Stephane Rombauts, Hervé Moreau, and Steven Ball. 2004. “Starch Division and Partitioning: a Mechanism for Granule Propagation and Maintenance in the Picophytoplanktonic Green Alga Ostreococcus Tauri.” Plant Physiology 136 (2): 3333–3340.
Vancouver
1.
Ral J-P, Derelle E, Ferraz C, Wattebled F, Farinas B, Corellou F, et al. Starch division and partitioning: a mechanism for granule propagation and maintenance in the picophytoplanktonic green alga Ostreococcus tauri. PLANT PHYSIOLOGY. 2004;136(2):3333–40.
IEEE
[1]
J.-P. Ral et al., “Starch division and partitioning: a mechanism for granule propagation and maintenance in the picophytoplanktonic green alga Ostreococcus tauri,” PLANT PHYSIOLOGY, vol. 136, no. 2, pp. 3333–3340, 2004.
@article{299759,
  abstract     = {Whereas Glc is stored in small-sized hydrosoluble glycogen particles in archaea, eubacteria, fungi, and animal cells, photosynthetic eukaryotes have resorted to building starch, which is composed of several distinct polysaccharide fractions packed into a highly organized semicrystalline granule. In plants, both the initiation of polysaccharide synthesis and the nucleation mechanism leading to formation of new starch granules are currently not understood. Ostreococcus tauri, a unicellular green alga of the Prasinophyceae family, defines the tiniest eukaryote with one of the smallest genomes. We show that it accumulates a single starch granule at the chloroplast center by using the same pathway as higher plants. At the time of plastid division, we observe elongation of the starch and division into two daughter structures that are partitioned in each newly formed chloroplast. These observations suggest that in this system the information required to initiate crystalline polysaccharide growth of a new granule is contained within the preexisting polysaccharide structure and the design of the plastid division machinery.},
  author       = {Ral, Jean-Philippe and Derelle, Evelyne and Ferraz, Conchita and Wattebled, Fabrice and Farinas, Benoit and Corellou, Florence and Buléon, Alain and Slomianny, Marie-Christine and Delvalle, David and d'Hulst, Christophe and Rombauts, Stephane and Moreau, Hervé and Ball, Steven},
  issn         = {0032-0889},
  journal      = {PLANT PHYSIOLOGY},
  keywords     = {CHLAMYDOMONAS-REINHARDTII,ADP-GLUCOSE PYROPHOSPHORYLASE,BACTERIAL GLYCOGEN,AMYLOPECTIN,SYNTHASE,BIOSYNTHESIS,BIOGENESIS,ENZYME,PRASINOPHYCEAE,ARABIDOPSIS},
  language     = {eng},
  number       = {2},
  pages        = {3333--3340},
  title        = {Starch division and partitioning: a mechanism for granule propagation and maintenance in the picophytoplanktonic green alga Ostreococcus tauri},
  url          = {http://dx.doi.org/10.1104/pp.104.044131},
  volume       = {136},
  year         = {2004},
}

Altmetric
View in Altmetric
Web of Science
Times cited: