Exudation: an expanding technique for continuous production and release of secondary metabolites from plant cell suspension and hairy root cultures

Plant Cell Rep. 2012 Mar;31(3):461-77. doi: 10.1007/s00299-011-1165-0. Epub 2011 Oct 11.

Abstract

This review addresses methods of obtaining secondary metabolites from plant cell suspension and hairy root cultures and their exudates, particularly the physiological mechanisms of secondary metabolites release and trafficking. The efficiency for product recovery of metabolites can be increased by various methods, based on the principle of continuous product release into the cultivation medium. The most common methods for metabolite recovery are elicitation, influencing membrane permeability, and in situ product removal. The biosynthetic pathways can be influenced by cultivation conditions, transformation, or application of elicitors. The membrane permeability can be altered through the application of chemical or physical treatments. Product removal can be greatly increased through a two-phase system and the introduction of absorbents into the cultivation medium. In this review, we describe some improved approaches that have proven useful in these efforts.

Publication types

  • Review

MeSH terms

  • Biotechnology / methods*
  • Cell Culture Techniques / methods*
  • Cell Membrane Permeability
  • Plant Cells
  • Plant Development
  • Plant Exudates / isolation & purification*
  • Plant Proteins / isolation & purification*
  • Plant Proteins / metabolism
  • Plant Roots / genetics
  • Plant Roots / growth & development
  • Plant Roots / metabolism*
  • Plants / genetics
  • Plants / metabolism*
  • Plants, Genetically Modified

Substances

  • Plant Exudates
  • Plant Proteins