Differential effects of five types of antipathogenic plant peptides on model membranes

Caaveiro, Jose Manuel and Molina Fernández, Antonio and Gonzalez Mañas, Juan M. and Rodriguez Palenzuela, Pablo and García Olmedo, Francisco and Goñi, Felix M. (1997). Differential effects of five types of antipathogenic plant peptides on model membranes. "Febs Letters", v. 410 (n. 2-3); pp. 338-342. ISSN 0014-5793. https://doi.org/10.1016/S0014-5793(97)00613-3.

Description

Title: Differential effects of five types of antipathogenic plant peptides on model membranes
Author/s:
  • Caaveiro, Jose Manuel
  • Molina Fernández, Antonio
  • Gonzalez Mañas, Juan M.
  • Rodriguez Palenzuela, Pablo
  • García Olmedo, Francisco
  • Goñi, Felix M.
Item Type: Article
Título de Revista/Publicación: Febs Letters
Date: June 1997
ISSN: 0014-5793
Volume: 410
Subjects:
Freetext Keywords: Thionin; Defensin; Lipid transfer protein; Plant pathogen; Biomembrane
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biotecnologia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

he effects of five antipathogenic plant peptides, wheat α-thionin, potato PTH1 defensin, barley LTP2 lipid transfer protein, and potato tuber DL1 and DL2 defensins, have been tested against phospholipid vesicles (liposomes). Wheat thionin very actively induces aggregation and leakage of negatively charged vesicles. LTP2 displays the same activities, although to a limited extent. Under certain conditions PTH1 and DL2 induce vesicle aggregation, but not leakage. Potato defensin DL1 failed to show any effect on liposomes. The same peptides have been assayed against a plant pathogenic bacterium, both the membrane-active and -inactive compounds having efficient antibacterial action

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