Induced resistance in sweet orange against Xanthomonas citri subsp. citri by hexanoic acid
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Altres documents de l'autoria: Llorens, Eugenio; Vicedo, Begonya; López, María M.; Lapeña, Leonor; Graham, James H.; García Agustín, Pilar
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Títol
Induced resistance in sweet orange against Xanthomonas citri subsp. citri by hexanoic acidAutoria
Data de publicació
2015-08Editor
ElsevierISSN
0261-2194Cita bibliogràfica
Llorens, E., Vicedo, B., López, M. M., Lapeña, L., Graham, J. H., & García-Agustín, P. (2015). Induced resistance in sweet orange against Xanthomonas citri subsp. citri by hexanoic acid. Crop Protection, 74, 77-84.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0261219415300107Paraules clau / Matèries
Resum
Citrus canker, caused by Xanthomonas citri subsp. citri, is a serious and wide-spread disease of citrus, causing losses in fruit yield and quality. There are no highly effective citrus canker disease control measures. ... [+]
Citrus canker, caused by Xanthomonas citri subsp. citri, is a serious and wide-spread disease of citrus, causing losses in fruit yield and quality. There are no highly effective citrus canker disease control measures. Repeated spray applications of copper are often employed to protect fruit from bacterial infection with consequences for copper phytotoxicity and accumulation in the soil. Alternatively, innate plant defense mechanisms can be enhanced by plant treatments with specific natural and synthetic inducers for control of bacterial diseases. In this study, hexanoic acid applied as a soil drench or foliar spray on 9-month-old potted citrus trees reduced lesions on leaves by 50% compared with control plants. Disease-reducing activity lasted up to 50 days after application. Induction of resistance mediated by hexanoic acid was demonstrated by enhanced expression of Pathogenesis-related (PR) genes and callose deposition in treated and infected plants. These findings indicated that hexanoic acid applications trigger a defensive response in the plants. The application of this natural compound may have potential for management of citrus canker in conjunction with other disease control measures and may reduce the frequency or rate of copper bactericides. [-]
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Crop Protection, 2015, vol. 74Drets d'accés
© 2015 Elsevier Ltd. All rights reserved.
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info:eu-repo/semantics/openAccess
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