INVESTIGADORES
OTTADO Jorgelina
capítulos de libros
Título:
Mechanisms of infection used by Xanthomonas axonopodis pv.citri in citrus canker disease
Autor/es:
GOTTIG, N.; GARAVAGLIA, B.S.; GAROFALO, C.G.; ZIMARO, T.; SGRO, G:; FICARRA, F.A.; DUNGER, G.; DAURELIO, L. D.; THOMAS, L.; GEHRING, C.; ORELLANO, E; JORGELINA OTTADO
Libro:
Current Research, Technology and Education Topics in Applied Microbiology and Microbial Biotechnology
Editorial:
A. Méndez-Vilas
Referencias:
Año: 2010; p. 196 - 204
Resumen:
The citrus canker causing bacteria Xanthomonas axonopodis pv. citri uses several mechanisms to colonize
its host. Among them, attachment to the host surface by specific proteins named adhesins is important to
the progress of the disease. Once the bacteria is attached to the host it delivers pathogenicity effector
proteins inside the plant cell through the type III protein secretion system that modulate the plant basal
defense response for the benefit of the pathogen. As a later step in pathogenesis, X. axonopodis pv. citri
its host. Among them, attachment to the host surface by specific proteins named adhesins is important to
the progress of the disease. Once the bacteria is attached to the host it delivers pathogenicity effector
proteins inside the plant cell through the type III protein secretion system that modulate the plant basal
defense response for the benefit of the pathogen. As a later step in pathogenesis, X. axonopodis pv. citri
its host. Among them, attachment to the host surface by specific proteins named adhesins is important to
the progress of the disease. Once the bacteria is attached to the host it delivers pathogenicity effector
proteins inside the plant cell through the type III protein secretion system that modulate the plant basal
defense response for the benefit of the pathogen. As a later step in pathogenesis, X. axonopodis pv. citri
its host. Among them, attachment to the host surface by specific proteins named adhesins is important to
the progress of the disease. Once the bacteria is attached to the host it delivers pathogenicity effector
proteins inside the plant cell through the type III protein secretion system that modulate the plant basal
defense response for the benefit of the pathogen. As a later step in pathogenesis, X. axonopodis pv. citri
Xanthomonas axonopodis pv. citri uses several mechanisms to colonize
its host. Among them, attachment to the host surface by specific proteins named adhesins is important to
the progress of the disease. Once the bacteria is attached to the host it delivers pathogenicity effector
proteins inside the plant cell through the type III protein secretion system that modulate the plant basal
defense response for the benefit of the pathogen. As a later step in pathogenesis, X. axonopodis pv. citriX. axonopodis pv. citri
must form biofilms which are matrix-enclosed bacterial populations that adhere to each other with the
involving of adhesins and the exopolysaccharide xanthan. Besides these basic mechanisms this bacteria
uses also a plant natriuretic peptide-like protein to regulate host homeostasis and in that way improves host
photosynthesis leading to a more healthy tissue during the infection that suit X. axonopodis pv. citriX. axonopodis pv. citri
biotrophic lifestyle. These bacterial strategies in citrus canker are discussed.