Xylella fastidiosa infection and ethylene exposure result in xylem and water movement disruption in grapevine shoots

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dc.catalogadorpva
dc.contributor.authorPérez Donoso, Alonso Gastón
dc.contributor.authorGreve, L. Carl
dc.contributor.authorWalton, Jeffrey H.
dc.contributor.authorShackel, Ken A.
dc.contributor.authorLabavitch, John M.
dc.date.accessioned2025-03-12T19:49:15Z
dc.date.available2025-03-12T19:49:15Z
dc.date.issued2007
dc.description.abstractIt is conventionally thought that multiplication of the xylem-limited bacterium Xylella fastidiosa (Xf) within xylem vessels is the sole factor responsible for the blockage of water movement in grapevines (Vitis vinifera) affected by Pierce's disease. However, results from our studies have provided substantial support for the idea that vessel obstructions, and likely other aspects of the Pierce's disease syndrome, result from the grapevine's active responses to the presence of Xf, rather than to the direct action of the bacterium. The use of magnetic resonance imaging (MRI) to observe the distribution of water within the xylem has allowed us to follow nondestructively the development of vascular system obstructions subsequent to inoculation of grapevines with Xf. Because we have hypothesized a role for ethylene produced in vines following infection, the impact of vine ethylene exposure on obstruction development was also followed using MRI. In both infected and ethylene-exposed plants, MRI shows that an important proportion of the xylem vessels become progressively air embolized after the treatments. The loss of xylem water-transporting function, assessed by MRI, has been also correlated with a decrease in stem-specific hydraulic conductivity (K S) and the presence of tyloses in the lumens of obstructed water conduits. We have observed that the ethylene production of leaves from infected grapevines is greater than that from healthy vines and, therefore, propose that ethylene may be involved in a series of cellular events that coordinates the vine's response to the pathogen.
dc.fechaingreso.objetodigital2025-03-12
dc.format.extent13 páginas
dc.fuente.origenHistorial Académico
dc.fuente.origenORCID
dc.identifier.citationPerez A, Greve L, Walton J, Shackel K, Labavitch J. Xylella fastidiosa infection and ethylene exposure result in xylem and water movement disruption in grapevine shoots. Plant Physiology. 2007;143(100):1024-1036.
dc.identifier.doi10.1104/pp.106.087023
dc.identifier.issn0032-0889
dc.identifier.pubmedid17189331
dc.identifier.scopusidSCOPUS_ID:34247217505
dc.identifier.urihttp://doi.org/10.1104/pp.106.087023
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102548
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Pérez Donoso, Alonso Gastón; 0000-0001-6442-891X; 91787
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final1036
dc.pagina.inicio1024
dc.publisherAmerican Society of Plant Biologists
dc.revistaPlant Physiology
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectEthylenes
dc.subjectPlant diseases
dc.subjectPlant growth regulators
dc.subjectPlant stems
dc.subjectVitis
dc.subjectWater
dc.subjectXylella
dc.subjectXylem
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.subject.ods15 Life on land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleXylella fastidiosa infection and ethylene exposure result in xylem and water movement disruption in grapevine shoots
dc.typeartículo
dc.volumen143
sipa.codpersvinculados91787
sipa.trazabilidadHistorial Académico;09-07-2021
sipa.trazabilidadORCID;2025-03-03
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