Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/75277

TítuloSatureja montana essential oil, zein nanoparticles and their combination as a biocontrol strategy to reduce bacterial spot disease on tomato plants
Autor(es)Oliveira-Pinto, Paulo R.
Mariz-Ponte, Nuno
Sousa, Rose Marie O. F.
Torres, Ana
Tavares, Fernando
Ribeiro, Artur
Cavaco-Paulo, Artur
Fernandes-Ferreira, Manuel
Santos, Conceição
Palavras-chaveSatureja montana
essential oil
zein nanoparticles
nanoformulation
bacterial spot
Solanum lycopersicum
Xanthomonas euvesicatoria
DataDez-2021
EditoraMDPI
RevistaHorticulturae
CitaçãoOliveira-Pinto, Paulo R.; Mariz-Ponte, Nuno; Sousa, Rose Marie O. F.; Torres, Ana; Tavares, Fernando; Ribeiro, Artur; Cavaco-Paulo, Artur; Fernandes-Ferreira, Manuel; Santos, Conceição, Satureja montana essential oil, zein nanoparticles and their combination as a biocontrol strategy to reduce bacterial spot disease on tomato plants. Horticulturae, 7(12), 584, 2021
Resumo(s)Tomato bacterial spot (Bs), caused by Xanthomonas spp., including X. euvesicatoria (Xeu) remains a major threat for tomato production. The emergence of copper resistance strains of Xeu calls urgently for eco-friendly phytosanitary treatments as sustainable green alternatives for disease control. Satureja spp. essential oil (EO) has antimicrobial activity against xanthomonads and combined with zein nanoparticles (ZNPs), might offer a viable option for field applications. This study aims to evaluate the effects of S. montana EO, of ZNPs, and their combination in a nanoformulation, on Xeu quantity, and how these compounds modulate molecular and physiological changes in the pathosystem. Uninfected and infected tomato plants (var. Oxheart) were treated with EO; ZNPs and nanoformulation (EO + ZNPs). Treatments reduced Xeu amount by a minimum of 1.6-fold (EO) and a maximum of 202-fold (ZNPs) and improved plants health. Nanoformulation and ZNPs increased plants phenolic content. ZNPs significantly increased GPX activity and reduced CAT activity. Overall treatments upregulated transcripts of the phenylpropanoid pathway in infected plants, while ZNPs and nanoformulation upregulated those transcripts in uninfected plants. Both sod and aao transcripts were downregulated by treatments in infected plants. These findings demonstrate that S. montana EO, ZNPs and their nanoformulation are suitable to integrate tomato bacterial spot management strategies, mainly due to their antimicrobial activity on Xeu, however further field studies clarifying the long-term action of these products are required. These results also support the prophylactic potential of ZNPs on tomato bacterial spot.
TipoArtigo
URIhttps://hdl.handle.net/1822/75277
DOI10.3390/horticulturae7120584
ISSN2311-7524
Versão da editorahttps://www.mdpi.com/2311-7524/7/12/584
Arbitragem científicayes
AcessoAcesso aberto
Aparece nas coleções:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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