Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?

The maintenance of an intact water column in the xylem lumen several meters above the ground is essential for woody plant viability. In fact, abiotic and biotic factors can lead to the formation of emboli in the xylem, interrupting sap flow and causing consequences on the health status of the plant....

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Main Authors: Giambattista Carluccio, Davide Greco, Erika Sabella, Marzia Vergine, Luigi De Bellis, Andrea Luvisi
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/12/6/825
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author Giambattista Carluccio
Davide Greco
Erika Sabella
Marzia Vergine
Luigi De Bellis
Andrea Luvisi
author_facet Giambattista Carluccio
Davide Greco
Erika Sabella
Marzia Vergine
Luigi De Bellis
Andrea Luvisi
author_sort Giambattista Carluccio
collection DOAJ
description The maintenance of an intact water column in the xylem lumen several meters above the ground is essential for woody plant viability. In fact, abiotic and biotic factors can lead to the formation of emboli in the xylem, interrupting sap flow and causing consequences on the health status of the plant. Anyway, the tendency of plants to develop emboli depends on the intrinsic features of the xylem, while the cyto-histological structure of the xylem plays a role in resistance to vascular pathogens, as in the case of the pathogenic bacterium <i>Xylella fastidiosa</i>. Analysis of the scientific literature suggests that on grapevine and olive, some xylem features can determine plant tolerance to vascular pathogens. However, the same trend was not reported in citrus, indicating that <i>X. fastidiosa</i> interactions with host plants differ by species. Unfortunately, studies in this area are still limited, with few explaining inter-<i>cultivar</i> insights. Thus, in a global context seriously threatened by <i>X. fastidiosa</i>, a deeper understanding of the relationship between the physical and mechanical characteristics of the xylem and resistance to stresses can be useful for selecting <i>cultivars</i> that may be more resistant to environmental changes, such as drought and vascular pathogens, as a way to preserve agricultural productions and ecosystems.
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spelling doaj.art-a2728af0f5f846acadda1642137215ae2023-11-18T12:00:28ZengMDPI AGPathogens2076-08172023-06-0112682510.3390/pathogens12060825Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?Giambattista Carluccio0Davide Greco1Erika Sabella2Marzia Vergine3Luigi De Bellis4Andrea Luvisi5Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, ItalyThe maintenance of an intact water column in the xylem lumen several meters above the ground is essential for woody plant viability. In fact, abiotic and biotic factors can lead to the formation of emboli in the xylem, interrupting sap flow and causing consequences on the health status of the plant. Anyway, the tendency of plants to develop emboli depends on the intrinsic features of the xylem, while the cyto-histological structure of the xylem plays a role in resistance to vascular pathogens, as in the case of the pathogenic bacterium <i>Xylella fastidiosa</i>. Analysis of the scientific literature suggests that on grapevine and olive, some xylem features can determine plant tolerance to vascular pathogens. However, the same trend was not reported in citrus, indicating that <i>X. fastidiosa</i> interactions with host plants differ by species. Unfortunately, studies in this area are still limited, with few explaining inter-<i>cultivar</i> insights. Thus, in a global context seriously threatened by <i>X. fastidiosa</i>, a deeper understanding of the relationship between the physical and mechanical characteristics of the xylem and resistance to stresses can be useful for selecting <i>cultivars</i> that may be more resistant to environmental changes, such as drought and vascular pathogens, as a way to preserve agricultural productions and ecosystems.https://www.mdpi.com/2076-0817/12/6/825cavitationbiotic and abiotic stressescell wallpit
spellingShingle Giambattista Carluccio
Davide Greco
Erika Sabella
Marzia Vergine
Luigi De Bellis
Andrea Luvisi
Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
Pathogens
cavitation
biotic and abiotic stresses
cell wall
pit
title Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
title_full Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
title_fullStr Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
title_full_unstemmed Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
title_short Xylem Embolism and Pathogens: Can the Vessel Anatomy of Woody Plants Contribute to <i>X. fastidiosa</i> Resistance?
title_sort xylem embolism and pathogens can the vessel anatomy of woody plants contribute to i x fastidiosa i resistance
topic cavitation
biotic and abiotic stresses
cell wall
pit
url https://www.mdpi.com/2076-0817/12/6/825
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