Plant defense peptides

Biopolymers. 1998;47(6):479-91. doi: 10.1002/(SICI)1097-0282(1998)47:6<479::AID-BIP6>3.0.CO;2-K.

Abstract

Eight families of antimicrobial peptides, ranging in size from 2 to 9 kD, have been identified in plants. These are thionins, defensins, so-called lipid transfer proteins, hevein- and knottin-like peptides, MBP1, IbAMP, and the recently reported snakins. All of them have compact structures that are stabilized by 2-6 disulfide bridges. They are part of both permanent and inducible defense barriers. Transgenic overexpression of the corresponding genes leads to enhanced tolerance to pathogens, and peptide-sensitive pathogen mutants have reduced virulence.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Amino Acid Sequence
  • Anti-Bacterial Agents / isolation & purification*
  • Defensins
  • Molecular Sequence Data
  • Plant Proteins / isolation & purification*
  • Proteins / isolation & purification

Substances

  • Anti-Bacterial Agents
  • Defensins
  • Plant Proteins
  • Proteins