To disinfect or not to disinfect in postharvest research on the fungal decay of apple?

Naets, Matthias; Dael, Mattias van; Vanstreels, Els; Daelemans, Dirk; Verboven, Pieter; Nicolaı̈, Bart; Keulemans, Wannes

doi:10.1016/j.ijfoodmicro.2017.12.003

Cited by 23 publications

(4 citation statements)

References 54 publications

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“…Other quality measures are given in Table 1 and indicate that apples had not ripened much since harvest where respiration rate was similar at levels of 165 ± 9.7 nmol kg –1 s –1 (mean ± se, n = 10). Fruit were not disinfected as our previous research indicated that this could result in a physiological response and damage to the fruit surface, both of them potentially able to bias the study results ( Naets et al, 2018 ).…”

Section: Methodsmentioning

confidence: 99%

Time Is of the Essence—Early Activation of the Mevalonate Pathway in Apple Challenged With Gray Mold Correlates With Reduced Susceptibility During Postharvest Storage

Naets

Hemelrijck²,

Gruyters

et al. 2022

Front. Microbiol.

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Apple is typically stored under low temperature and controlled atmospheric conditions to ensure a year round supply of high quality fruit for the consumer. During storage, losses in quality and quantity occur due to spoilage by postharvest pathogens. One important postharvest pathogen of apple is Botrytis cinerea. The fungus is a broad host necrotroph with a large arsenal of infection strategies able to infect over 1,400 different plant species. We studied the apple-B. cinerea interaction to get a better understanding of the defense response in apple. We conducted an RNAseq experiment in which the transcriptome of inoculated and non-inoculated (control and mock) apples was analyzed at 0, 1, 12, and 28 h post inoculation. Our results show extensive reprogramming of the apple’s transcriptome with about 28.9% of expressed genes exhibiting significant differential regulation in the inoculated samples. We demonstrate the transcriptional activation of pathogen-triggered immunity and a reprogramming of the fruit’s metabolism. We demonstrate a clear transcriptional activation of secondary metabolism and a correlation between the early transcriptional activation of the mevalonate pathway and reduced susceptibility, expressed as a reduction in resulting lesion diameters. This pathway produces the building blocks for terpenoids, a large class of compounds with diverging functions including defense. 1-MCP and hot water dip treatment are used to further evidence the key role of terpenoids in the defense and demonstrate that ethylene modulates this response.

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Section: Methodsmentioning

confidence: 99%

Time Is of the Essence—Early Activation of the Mevalonate Pathway in Apple Challenged With Gray Mold Correlates With Reduced Susceptibility During Postharvest Storage

Naets

Hemelrijck²,

Gruyters

et al. 2022

Front. Microbiol.

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“…The details of the fruit material used in the experiments above is described in Table . Apples were not disinfected prior to the experiments, as plant physiological effects were noticed in earlier research (Naets et al , ). The Botrytis cinerea isolate B05.10 was kindly provided by Julia Schumacher (Institut für Biologie & Biotechnologie der Pflanzen, University of Münster).…”

Section: Methodsmentioning

confidence: 99%

Size does matter – susceptibility of apple for grey mould is affected by cell size

et al. 2019

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Apple is a seasonal product that is stored for long periods of time, during which fungal‐caused decay can occur. Previous infection experiments of intact Jonagored apple with Botrytis cinerea displayed apparent differences in lesion expansion rate with respect to inoculation position on the fruit (on, above or below the equator). The goal of this study was to investigate whether these differences are consistent or not and if so, to relate them to fruit characteristics. The study involved measuring the hue angle of the intended inoculation spots prior to inoculation, and firmness and total soluble solids content of fruit from the same batch. Results showed that firmness correlated somewhat (−0.55 and −0.72 for shadow and sun side, respectively) with lesion diameter expansion rate. In a subsequent step, X‐ray imaging was carried out for samples from each position. Analysis of 3D reconstructions by microcomputed tomography of these diffraction images showed that cell size was strongly correlated (0.996) to lesion diameter expansion rate. Finally, it was investigated if cell size could also be used to rank different apple cultivars for their susceptibility to B. cinerea. The result shows that there is a clear distinction between Jonagold and Golden Delicious (non‐blushing variety), which have a smaller cell size, and Braeburn and Kanzi, which have a larger cell size (overall correlation of 0.87). This indicates that cell size may also be an important factor in determining susceptibility across cultivars.

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“…O fato de algumas espécies deteriorantes terem a capacidade de crescer relativamente rápido em temperaturas de refrigeração, explica que a incidência e a severidade da doença aumentam com o período de armazenamento em câmaras frias, tanto em atmosfera refrigerada quanto controlada (DI MAZI et al, 2011). A população de fungos estabelecida na superfície da maçã, com capacidade de colonizar o fruto, seja por mecanismos de infecção ou como patógenos oportunistas, através de ferimentos na epiderme, depende dos estágios de desenvolvimento do fruto, tipo de cultivo (orgânico versus convencional), aplicação de fungicidas ou métodos alternativos de preservação, desinfecção da superfície após a colheita, entre outros fatores (KHOL et al, 2018;NAETS et al, 2018;SHEN et al, 2018). Essas populações fúngicas sofrem mudanças significativas desde a colheita até o final do período pós-colheita.…”

Section: Doenças Fúngicas Da Maçãunclassified

“…A maçã é um alimento altamente suscetível à contaminação fúngica, e é no período pós-colheita que ocorrem as doenças mais graves, decorrentes de fungos, que levam à sua deterioração. Essas doenças são responsáveis por perdas econômicas significativas na produção de maçãs, estimadas em uma faixa de 30 a 40% nos países em desenvolvimento, chegando a 60% em casos mais extremos (KHOL et al, 2018;NAETS et al, 2018).…”

Section: Introductionunclassified

A Implantação Do Sistema Appcc Numa Sorveteria Da Baixada Santista

Gomes¹,

Sousa²,

Machado³

et al. 2021

Investigação Científica No Campo Da Engenharia E Da Tecnologia De Alimentos 3

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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To disinfect or not to disinfect in postharvest research on the fungal decay of apple?

Cited by 23 publications

References 54 publications

Time Is of the Essence—Early Activation of the Mevalonate Pathway in Apple Challenged With Gray Mold Correlates With Reduced Susceptibility During Postharvest Storage

Time Is of the Essence—Early Activation of the Mevalonate Pathway in Apple Challenged With Gray Mold Correlates With Reduced Susceptibility During Postharvest Storage

Size does matter – susceptibility of apple for grey mould is affected by cell size

A Implantação Do Sistema Appcc Numa Sorveteria Da Baixada Santista

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