OrangerV1, Main, Exploration, bibRecord, 000845

Characterisation of H2O2 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages

Identifieur interne : 000845 ( Main/Exploration ); précédent : 000844; suivant : 000846

Characterisation of H2O2 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages

Auteurs : G. Buron-Moles [Espagne] ; R. Torres [Espagne] ; N. Teixido [Espagne] ; J. Usall [Espagne] ; L. Vilanova [Espagne] ; I. Vinas [Espagne]

Source :

Postharvest biology and technology [ 0925-5214 ] ; 2015.

RBID : Pascal:14-0275978

Descripteurs français

Pascal (Inist)
- Peroxyde d'hydrogène, Production, Compatibilité, Relation hôte agent, Orange, Pomme, Maturité, Ecophysiologie, Penicillium digitatum, Penicillium expansum, Fruit, Blessure.
Wicri :
- topic : Production, Fruit.

English descriptors

KwdEn :
- Apple, Compatibility, Ecophysiology, Fruit, Host agent relation, Hydrogen peroxide, Injury, Maturity, Orange, Penicillium digitatum, Penicillium expansum, Production.

Abstract

Penicillium digitatum and Penicillium expansum are the main postharvest pathogens of orange and apple fruit, respectively. These wound pathogens can infect through injuries caused during harvest and postharvest handling, which lead to large economic losses. Susceptibility of fruit to mechanical damage or infection increases during ripening. However, few studies have been focussed on the fruit wound-induced defence responses, such as H₂O₂ production. In this study, the characterisation of H₂O₂ production in orange (C. sinensis cv Valencia) and apple (M. domestica L. cv Golden Smoothee) fruit in response to abiotic (wounding) and biotic (pathogen and non-host pathogen) stresses at different maturity stages was investigated. The effect of H₂O₂ on the ecophysiology of P. digitatum and P. expansum at different temperatures was also studied. The potential antifungal effect of H₂O₂ in both pathogens depends on the temperature. P. expansum was more susceptible to higher levels of H₂O₂ than P. digitatum, especially at 25 °C. The lesion diameter in compatible interactions increased significantly with fruit maturity in apples and oranges. Fruit maturity also increased susceptibility to non-host pathogen interactions, especially reducing apple resistance to P. digitatum in the over-mature stage. H₂O₂ production showed different patterns depending on the fruit. In apples, the higher resistance of immature harvested fruit to pathogen infection correlated with an increase in H₂O₂ production (biphasic oxidative burst), whereas in oranges, immature and commercial harvests exhibited a similar pattern of H₂O₂ production among treatments. Production of H₂O₂ in oranges and apples following abiotic (wounding) and biotic (pathogen and non-host pathogen) stresses depended on the harvest date.

Affiliations:

Espagne

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Le document en format XML

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 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages</title>
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 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages</title>
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<series><title level="j" type="main">Postharvest biology and technology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Apple</term>
<term>Compatibility</term>
<term>Ecophysiology</term>
<term>Fruit</term>
<term>Host agent relation</term>
<term>Hydrogen peroxide</term>
<term>Injury</term>
<term>Maturity</term>
<term>Orange</term>
<term>Penicillium digitatum</term>
<term>Penicillium expansum</term>
<term>Production</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Peroxyde d'hydrogène</term>
<term>Production</term>
<term>Compatibilité</term>
<term>Relation hôte agent</term>
<term>Orange</term>
<term>Pomme</term>
<term>Maturité</term>
<term>Ecophysiologie</term>
<term>Penicillium digitatum</term>
<term>Penicillium expansum</term>
<term>Fruit</term>
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<front><div type="abstract" xml:lang="en">Penicillium digitatum and Penicillium expansum are the main postharvest pathogens of orange and apple fruit, respectively. These wound pathogens can infect through injuries caused during harvest and postharvest handling, which lead to large economic losses. Susceptibility of fruit to mechanical damage or infection increases during ripening. However, few studies have been focussed on the fruit wound-induced defence responses, such as H<sub>2</sub>
O<sub>2</sub>
 production. In this study, the characterisation of H<sub>2</sub>
O<sub>2</sub>
 production in orange (C. sinensis cv Valencia) and apple (M. domestica L. cv Golden Smoothee) fruit in response to abiotic (wounding) and biotic (pathogen and non-host pathogen) stresses at different maturity stages was investigated. The effect of H<sub>2</sub>
O<sub>2</sub>
 on the ecophysiology of P. digitatum and P. expansum at different temperatures was also studied. The potential antifungal effect of H<sub>2</sub>
O<sub>2</sub>
 in both pathogens depends on the temperature. P. expansum was more susceptible to higher levels of H<sub>2</sub>
O<sub>2</sub>
 than P. digitatum, especially at 25 °C. The lesion diameter in compatible interactions increased significantly with fruit maturity in apples and oranges. Fruit maturity also increased susceptibility to non-host pathogen interactions, especially reducing apple resistance to P. digitatum in the over-mature stage. H<sub>2</sub>
O<sub>2</sub>
 production showed different patterns depending on the fruit. In apples, the higher resistance of immature harvested fruit to pathogen infection correlated with an increase in H<sub>2</sub>
O<sub>2</sub>
 production (biphasic oxidative burst), whereas in oranges, immature and commercial harvests exhibited a similar pattern of H<sub>2</sub>
O<sub>2</sub>
 production among treatments. Production of H<sub>2</sub>
O<sub>2</sub>
 in oranges and apples following abiotic (wounding) and biotic (pathogen and non-host pathogen) stresses depended on the harvest date.</div>
</front>
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<name sortKey="Teixido, N" sort="Teixido, N" uniqKey="Teixido N" first="N." last="Teixido">N. Teixido</name>
<name sortKey="Torres, R" sort="Torres, R" uniqKey="Torres R" first="R." last="Torres">R. Torres</name>
<name sortKey="Usall, J" sort="Usall, J" uniqKey="Usall J" first="J." last="Usall">J. Usall</name>
<name sortKey="Vilanova, L" sort="Vilanova, L" uniqKey="Vilanova L" first="L." last="Vilanova">L. Vilanova</name>
<name sortKey="Vinas, I" sort="Vinas, I" uniqKey="Vinas I" first="I." last="Vinas">I. Vinas</name>
</country>
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Characterisation of H2O2 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages

Characterisation of H2O2 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri