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Callose and Related Glucans

  1. Bruce Stone

Published Online: 27 JAN 2006

DOI: 10.1038/npg.els.0004111

eLS

eLS

How to Cite

Stone, B. 2006. Callose and Related Glucans. eLS. .

Author Information

  1. La Trobe University, Victoria, Australia

Publication History

  1. Published Online: 27 JAN 2006

Abstract

Callose is a water-insoluble, linear (1[RIGHTWARDS ARROW]3)-β-d-glucan found among embryophytes. It occurs in specialized cell walls of reproductive tissues, as a transient component of the cell plate in dividing cells and as deposits on plasma membranes following wounding or in physiological or pathological stress. Related glucans are found as bacterial capsules, as storage polysaccharides in euglenoid protozoa and chromistans (brown algae, yellow-green algae, diatoms, water moulds and haptophytes), and as wall components and surface mucilages of yeasts and fungi.

Keywords:

  • chemistry;
  • conformation;
  • microfibrils;
  • polymorphic forms;
  • taxonomic distribution;
  • cell walls;
  • carbohydrate reserves;
  • biosynthesis;
  • depolymerization;
  • plant defence;
  • immunomodulation;
  • applications;
  • animal defence