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Chlorogenic acid levels in leaves of coffee plants supplied with silicon and infected by Hemileia vastatrix

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dc.contributor.author Rodrigues, Fabrício A.
dc.contributor.author Carré-Missio, Vivian
dc.contributor.author Jham, Gulab N.
dc.contributor.author Berhow, Mark
dc.contributor.author Schurt, Daniel A.
dc.date.accessioned 2022-01-24T21:45:24Z
dc.date.available 2022-01-24T21:45:24Z
dc.date.issued 2011
dc.identifier.citation RODRIGUES, F. A. et al. Chlorogenic acid levels in leaves of coffee plants supplied with silicon and infected by Hemileia vastatrix. Tropical Plant Pathology, Brasília, v. 36, n. 6, p. 404-408, nov./dez. 2011. pt_BR
dc.identifier.issn 1983-2052
dc.identifier.uri https://www.scielo.br/j/tpp/a/PjKDmmy5kHRdWmBpTTkRvZx/?format=pdf&lang=en pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13232
dc.description.abstract Rust, caused by Hemileia vastatrix, is the main disease that decreases coffee production in Brazil. New and enhanced methods to reduce rust intensity that can be integrated with modern genetic and chemical approaches need to be investigated. Considering that many plant species supplied with silicon (Si) show increased resistance to several pathogens, this study examined the possible effect of this element in increasing chlorogenic acid (CA) concentrations in coffee leaves and, consequently, increasing the level of resistance to rust. Plants (cv. “Catuaí Vermelho IAC 44”) were inoculated with H. vastatrix after growing for 35 days in a hydroponic culture amended with 0 (-Si) or 2 (+Si) mM Si. Concentration of Si in leaf tissues was of 0.36 and 0.42 dag/kg for -Si and +Si treatments, respectively, but without a statistically significant difference. The area under rust progress curve was 154.5 and 119.4 for -Si and +Si treatments, respectively, but without significant statistical difference. For non-inoculated plants, the concentrations of total CA and caffeoyl-quinic acid (CQA) compounds (diCQA) were similar between -Si and +Si treatments. Even though there was an increase of 236.4 and 257.1%, respectively, for total CA and diCQA for +Si when compared to -Si treatment at 30 days after inoculation with H. vastatrix, reduction on rust severity was not obtained once the fungus had already colonized the leaf tissues. Therefore, regardless of the increase in the concentrations of chlorogenic acid on leaves, coffee resistance to H. vastatrix infection was not potentialized by Si. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Sociedade Brasileira de Fitopatologia pt_BR
dc.relation.ispartofseries Tropical Plant Pathology;v.36, n.6, 2011
dc.rights Open Access pt_BR
dc.subject Coffea arabica pt_BR
dc.subject Biotrófico pt_BR
dc.subject Fenólicos pt_BR
dc.subject Metabólitos secundários pt_BR
dc.subject Metabolômica pt_BR
dc.subject Resistência a doenças pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Chlorogenic acid levels in leaves of coffee plants supplied with silicon and infected by Hemileia vastatrix pt_BR
dc.type Artigo pt_BR

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