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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/3931
Title: 
A kinetic model for Xylella fastidiosa adhesion, biofilm formation, and virulence
Author(s): 
Institution: 
  • Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
  • Universidade de São Paulo (USP)
  • Universidade Estadual Paulista (UNESP)
  • Inst Agron
ISSN: 
0378-1097
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. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
Issue Date: 
15-Jul-2004
Citation: 
Fems Microbiology Letters. Amsterdam: Elsevier B.V., v. 236, n. 2, p. 313-318, 2004.
Time Duration: 
313-318
Publisher: 
Elsevier B.V.
Keywords: 
  • Xylella fastidiosa
  • FTIR
  • biofilm
  • Adhesion
  • virulence
Source: 
http://dx.doi.org/10.1016/j.femsle.2004.06.003
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/3931
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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