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The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum

Abscisic acid (ABA) protects citrus fruit against Penicillium digitatum infection. The global mechanisms involved in the role of ABA in the P. digitatum–citrus fruit interaction are unknown. Here, we determine the transcriptome differences between the Navelate (Citrus sinensis (L.) Osbeck) orange an...

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Autores principales: Lafuente, María T., González-Candelas, Luis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9779756/
https://www.ncbi.nlm.nih.gov/pubmed/36555436
http://dx.doi.org/10.3390/ijms232415796
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author Lafuente, María T.
González-Candelas, Luis
author_facet Lafuente, María T.
González-Candelas, Luis
author_sort Lafuente, María T.
collection PubMed
description Abscisic acid (ABA) protects citrus fruit against Penicillium digitatum infection. The global mechanisms involved in the role of ABA in the P. digitatum–citrus fruit interaction are unknown. Here, we determine the transcriptome differences between the Navelate (Citrus sinensis (L.) Osbeck) orange and its ABA-deficient mutant Pinalate, which is less resistant to infection. Low ABA levels may affect both the constitutive mechanisms that protect citrus fruit against P. digitatum and early responses to infection. The repression of terpenoid, phenylpropanoid and glutation metabolism; of oxidation–reduction processes; and of processes related to the defense response to fungus and plant hormone signal transduction may be one part of the constitutive defense reduced in the mutant against P. digitatum. Our results also provide potential targets for developing P. digitatum-citrus fruit-resistant varieties. Of those up-regulated by ABA, a thaumatin protein and a bifunctional inhibitor/LTP, which are relevant in plant immunity, were particularly remarkable. It is also worth highlighting chlorophyllase 1 (CLH1), induced by infection in Pinalate, and the OXS3 gene, which was down-regulated by ABA, because the absence of OXS3 activates ABA-responsive genes in plants.
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spelling pubmed-97797562022-12-23 The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum Lafuente, María T. González-Candelas, Luis Int J Mol Sci Article Abscisic acid (ABA) protects citrus fruit against Penicillium digitatum infection. The global mechanisms involved in the role of ABA in the P. digitatum–citrus fruit interaction are unknown. Here, we determine the transcriptome differences between the Navelate (Citrus sinensis (L.) Osbeck) orange and its ABA-deficient mutant Pinalate, which is less resistant to infection. Low ABA levels may affect both the constitutive mechanisms that protect citrus fruit against P. digitatum and early responses to infection. The repression of terpenoid, phenylpropanoid and glutation metabolism; of oxidation–reduction processes; and of processes related to the defense response to fungus and plant hormone signal transduction may be one part of the constitutive defense reduced in the mutant against P. digitatum. Our results also provide potential targets for developing P. digitatum-citrus fruit-resistant varieties. Of those up-regulated by ABA, a thaumatin protein and a bifunctional inhibitor/LTP, which are relevant in plant immunity, were particularly remarkable. It is also worth highlighting chlorophyllase 1 (CLH1), induced by infection in Pinalate, and the OXS3 gene, which was down-regulated by ABA, because the absence of OXS3 activates ABA-responsive genes in plants. MDPI 2022-12-13 /pmc/articles/PMC9779756/ /pubmed/36555436 http://dx.doi.org/10.3390/ijms232415796 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lafuente, María T.
González-Candelas, Luis
The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title_full The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title_fullStr The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title_full_unstemmed The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title_short The Role of ABA in the Interaction between Citrus Fruit and Penicillium digitatum
title_sort role of aba in the interaction between citrus fruit and penicillium digitatum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9779756/
https://www.ncbi.nlm.nih.gov/pubmed/36555436
http://dx.doi.org/10.3390/ijms232415796
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