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Building and breaking of a barrier: Suberin plasticity and function in the endodermis

Published inCurrent opinion in plant biology, vol. 64, 102153
Publication date2021-12
First online date2021-11-30
Abstract

Plant cells coated with hydrophobic compounds constitute a protective barrier to control movement of materials through plant tissues. In roots, the endodermis develops two barriers: the Casparian strips establish an apoplastic barrier and suberin lamellae prevent diffusion through the plasma membrane. Suberin is a complex biopolymer and its deposition is highly responsive to the environment. While the enzymatic framework involved in suberin biosynthesis is well characterized, subsequent steps in suberin formation and regulation remained elusive. Recent publications, studying suberin from a cell biological perspective, have enriched our knowledge on suberin transport and polymerization in the cell wall. These studies have also elucidated the molecular mechanisms controlling suberin biosynthesis and regulation as well as its physiological role in plant abiotic and biotic interactions.

eng
Keywords
  • Endodermis
  • MYB
  • Nutrients
  • Polymerization
  • Secretion
  • Suberin
  • Transport
  • Arabidopsis / metabolism
  • Cell Wall / metabolism
  • Lipids / physiology
  • Plant Roots / metabolism
Citation (ISO format)
SHUKLA, Vinay, BARBERON, Marie. Building and breaking of a barrier: Suberin plasticity and function in the endodermis. In: Current opinion in plant biology, 2021, vol. 64, p. 102153. doi: 10.1016/j.pbi.2021.102153
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ISSN of the journal1369-5266
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