Evidence for the transmission of information through electric potentials in injured avocado trees

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dc.contributor.authorOyarce, Patricio
dc.contributor.authorGurovich, Luis
dc.date.accessioned2024-01-10T12:05:20Z
dc.date.available2024-01-10T12:05:20Z
dc.date.issued2011
dc.description.abstractElectrical excitability and signaling, frequently associated with rapid responses to environmental stimuli, have been documented in both animals and higher plants. The presence of electrical potentials (EPs), such as action potentials (APs) and variation potentials (VPs), in plant cells suggests that plants make use of ion channels to transmit information over long distances. The reason why plants have developed pathways for electrical signal transmission is most probably the necessity to respond rapidly, for example, to environmental stress factors.
dc.description.abstractWe examined the nature and specific characteristics of the electrical response to wounding in the woody plant Persea americana (avocado). Under field conditions, wounds can be the result of insect activity, strong winds or handling injury during fruit harvest. Evidence for extracellular EP signaling in avocado trees after mechanical injury was expressed in the form of variation potentials. For tipping and pruning, signal velocities of 8.7 and 20.9 cm/s, respectively, were calculated, based on data measured with Ag/AgCl microelectrodes inserted at different positions of the trunk. EP signal intensity decreased with increasing distance between the tipping and pruning point and the electrode. Recovery time to pre-tipping or pre-pruning EP values was also affected by the distance and signal intensity from the tipping or pruning point to the specific electrode position. Real time detection of remote EP signaling can provide an efficient tool for the early detection of insect attacks, strong wind damage or handling injury during fruit harvest.
dc.description.abstractOur results indicate that electrical signaling in avocado, resulting from microenvironment modifications, can be quantitatively related to the intensity and duration of the stimuli, as well as to the distance between the stimuli site and the location of EP detection. These results may be indicative of the existence of a specific kind of proto-nervous system in plants. (C) 2010 Elsevier GmbH. All rights reserved.
dc.fechaingreso.objetodigital27-03-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jplph.2010.06.003
dc.identifier.eissn1618-1328
dc.identifier.issn0176-1617
dc.identifier.pubmedidMEDLINE:20630616
dc.identifier.urihttps://doi.org/10.1016/j.jplph.2010.06.003
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75991
dc.identifier.wosidWOS:000287897800004
dc.information.autorucAgronomía e Ing. Forestal;Gurovich L;S/I;98942
dc.information.autorucAgronomía e Ing. Forestal;Oyarce P ;S/I;132466
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final108
dc.pagina.inicio103
dc.publisherELSEVIER GMBH
dc.revistaJOURNAL OF PLANT PHYSIOLOGY
dc.rightsacceso restringido
dc.subjectAction potential
dc.subjectMechanical injury
dc.subjectPlant sensors
dc.subjectPlant signaling
dc.subjectPruning
dc.subjectVariation potential
dc.subjectPLANTS
dc.subjectMEMBRANE
dc.subjectSIGNALS
dc.subjectROOT
dc.subjectSTIMULATION
dc.subjectLIGHT
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleEvidence for the transmission of information through electric potentials in injured avocado trees
dc.typeartículo
dc.volumen168
sipa.codpersvinculados98942
sipa.codpersvinculados132466
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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