A kinetic model for Xylella fastidiosa adhesion, biofilm formation, and virulence

FEMS Microbiology Letters
Denise OsiroM A Machado

Abstract

Xylella fastidiosa is the causal agent of citrus variegated chlorosis and Pierce's disease which are the major threat to the citrus and wine industries. The most accepted hypothesis for Xf diseases affirms that it is a vascular occlusion caused by bacterial biofilm, embedded in an extracellular translucent matrix that was deduced to be the exopolysaccharide fastidian. Fourier transform infrared spectroscopy analysis demonstrated that virulent cells which form biofilm on glass have low fastidian content similar to the weak virulent ones. This indicates that high amounts of fastidian are not necessary for adhesion. In this paper we propose a kinetic model for X. fastidiosa adhesion, biofilm formation, and virulence based on electrostatic attraction between bacterial surface proteins and xylem walls. Fastidian is involved in final biofilm formation and cation sequestration in dilute sap.

Citations

Apr 5, 2005·Omics : a Journal of Integrative Biology·Stefano PashalidisAna C R Da Silva
Sep 11, 2007·Applied and Environmental Microbiology·M Caroline RoperBruce C Kirkpatrick
Sep 11, 2007·Applied and Environmental Microbiology·Xiang Yang ShiDonald A Cooksey
Jul 14, 2010·Journal of Biomedicine & Biotechnology·Maristela Boaceff CirauloLuiz R Nunes
Nov 21, 2012·Colloids and Surfaces. B, Biointerfaces·Gabriela S LoriteMônica A Cotta
Sep 24, 2004·Biochemical and Biophysical Research Communications·Denise OsiroLuiz Alberto Colnago
Jul 10, 2012·Archives of Biochemistry and Biophysics·Luciana K Rosselli-MuraiAna C Zeri
Apr 28, 2011·Biochemical and Biophysical Research Communications·Claudia A AlvesRonaldo C Faria
Apr 14, 2011·Journal of Colloid and Interface Science·Gabriela S LoriteMônica A Cotta

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