OrangerV1, Main, Exploration, bibRecord, 001129

Differential expression of the Citrus sinensis ABA perception system genes during postharvest fruit dehydration

Identifieur interne : 001129 ( Main/Exploration ); précédent : 001128; suivant : 001130

Differential expression of the Citrus sinensis ABA perception system genes during postharvest fruit dehydration

Auteurs : Paco Romero [Espagne] ; María J. Rodrigo [Espagne] ; Maria T. Lafuente [Espagne]

Source :

Postharvest biology and technology [ 0925-5214 ] ; 2013.

RBID : Pascal:13-0195041

Descripteurs français

Pascal (Inist)
- Citrus sinensis, Acide abscissique, Perception, Gène, Fruit, Après récolte, Déshydratation, Agrume, Expression génique, Froid, Pelure, Stress hydrique.
Wicri :
- topic : Fruit, Déshydratation, Agrume.

English descriptors

KwdEn :
- Abscisic acid, Citrus fruit, Citrus sinensis, Cold, Dehydration, Fruit, Gene, Gene expression, Peel, Perception, Postharvest, Water stress.

Abstract

Water stress occurring during postharvest handling and storage is an important factor affecting external quality of fresh fruit and vegetables. The phytohormone abscisic acid (ABA) is a key regulator of the dehydration response in citrus fruit, which are prone to develop peel damage in response to water stress. To study the involvement of the ABA perception system in the dehydration response and its relationship with the occurrence of peel damage in citrus fruit, a comparative transcriptional analysis of the ABA signalling core components in water-stressed fruit of the wild-type 'Navelate' orange (Citrus sinensis L Osbeck) and its spontaneous fruit-specific ABA-deficient mutant 'Pinalate', which is more susceptible to dehydration and to develop non-chilling peel pitting (NCPP), has been performed. Minor differences in ABA receptors (CsPYR/PYL/RCAR) and downstream protein kinase (CsSnRK2) transcript levels were found in response to dehydration between wild-type and the ABA-deficient mutant fruit. In contrast, the expression of the ABA-mediated PYR/PYL/RCAR-inactivated clade A protein phosphatases 2C (CsPP2CA) was highly regulated by ABA content and showed significant differences between cultivars. Results obtained by ABA application suggest the involvement of these negative regulators in the impaired response of 'Pinalate' fruit to water stress. Overall, the higher responsiveness to ABA changes of the CsPP2CAs during citrus fruit dehydration highlights these components as key regulator control points in the response of citrus fruit to water stress.

Affiliations:

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

to stream PascalFrancis, to step Corpus: 000055
to stream PascalFrancis, to step Curation: 000945
to stream PascalFrancis, to step Checkpoint: 000050
to stream Main, to step Merge: 001137
to stream Main, to step Curation: 001129

Le document en format XML

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<term>Dehydration</term>
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<term>Perception</term>
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<term>Après récolte</term>
<term>Déshydratation</term>
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<front><div type="abstract" xml:lang="en">Water stress occurring during postharvest handling and storage is an important factor affecting external quality of fresh fruit and vegetables. The phytohormone abscisic acid (ABA) is a key regulator of the dehydration response in citrus fruit, which are prone to develop peel damage in response to water stress. To study the involvement of the ABA perception system in the dehydration response and its relationship with the occurrence of peel damage in citrus fruit, a comparative transcriptional analysis of the ABA signalling core components in water-stressed fruit of the wild-type 'Navelate' orange (Citrus sinensis L Osbeck) and its spontaneous fruit-specific ABA-deficient mutant 'Pinalate', which is more susceptible to dehydration and to develop non-chilling peel pitting (NCPP), has been performed. Minor differences in ABA receptors (CsPYR/PYL/RCAR) and downstream protein kinase (CsSnRK2) transcript levels were found in response to dehydration between wild-type and the ABA-deficient mutant fruit. In contrast, the expression of the ABA-mediated PYR/PYL/RCAR-inactivated clade A protein phosphatases 2C (CsPP2CA) was highly regulated by ABA content and showed significant differences between cultivars. Results obtained by ABA application suggest the involvement of these negative regulators in the impaired response of 'Pinalate' fruit to water stress. Overall, the higher responsiveness to ABA changes of the CsPP2CAs during citrus fruit dehydration highlights these components as key regulator control points in the response of citrus fruit to water stress.</div>
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Differential expression of the Citrus sinensis ABA perception system genes during postharvest fruit dehydration

Differential expression of the Citrus sinensis ABA perception system genes during postharvest fruit dehydration

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