IBR   13079
INSTITUTO DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Rosmarinus officinalis (rosemary) reduce susceptibility to plant ARN viruses
Autor/es:
GERHARDT N.; SICILIANO F.; ENRIQUE R.; VOJNOV A. A.; MARANO M.R.
Lugar:
Tucumán. Argentina
Reunión:
Congreso; XLV Reunión Anual-Sociedad Argentina de Investigación en Bioquímica y Biología Molecular.; 2009
Institución organizadora:
Sociedad Argentina de Investigación en Bioquímica y Biología Molecular
Resumen:
Viruses cause many important plant diseases and are responsible for huge losses in many economically important crops in the world. Plant viruses can not be directly controlled by chemical application. Previously, we have shown that rosemary extracts reduce the growth of tobacco necrosis virus (TNV), decreasing significantly the number and size of virus lesions in Nicotiana tabacum plants. In this work we analyzed the biological role of two active principles of rosemary extract against several ARN viruses in N. tabacum. We have shown that the inhibition of virus infection is associated with the presence of micro-oxidative bursts and callose deposition. To investigate the roles of hormone-mediated signaling to TNV resistance by rosemary extracts, we analyzed the induction of genes involved in salicylic acid and jasmonic acid pathways. Our results indicate that both hormone-signaling pathways are involved in the activation of plant immune response to virus infection.