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Temporal and Spatial Resolution of Activated Plant Defense Responses in Leaves of Nicotiana benthamiana Infected with Dickeya dadantii
dc.contributor.author | Pérez-Bueno, María L. | |
dc.contributor.author | Granum, Espen | |
dc.contributor.author | Pineda, Mónica | |
dc.contributor.author | Flors, Victor | |
dc.contributor.author | Rodríguez-Palenzuela, Pablo | |
dc.contributor.author | López-Solanilla, Emilia | |
dc.contributor.author | Barón, Matilde | |
dc.date.accessioned | 2016-06-13T09:10:48Z | |
dc.date.available | 2016-06-13T09:10:48Z | |
dc.date.issued | 2016-01-08 | |
dc.identifier.citation | PÉREZ-BUENO, María L., et al. Temporal and spatial resolution of activated plant defense responses in leaves of Nicotiana benthamiana infected with Dickeya dadantii. Frontiers in plant science, 2015, vol. 6 | ca_CA |
dc.identifier.issn | 1664-462X | |
dc.identifier.uri | http://hdl.handle.net/10234/160638 | |
dc.description.abstract | The necrotrophic bacteria Dickeya dadantii is the causal agent of soft-rot disease in a broad range of hosts. The model plant Nicotiana benthamiana, commonly used as experimental host for a very broad range of plant pathogens, is susceptible to infection by D. dadantii. The inoculation with D. dadantii at high dose seems to overcome the plant defense capacity, inducing maceration and death of the tissue, although restricted to the infiltrated area. By contrast, the output of the defense response to low dose inoculation is inhibition of maceration and limitation in the growth, or even eradication, of bacteria. Responses of tissue invaded by bacteria (neighboring the infiltrated areas after 2–3 days post-inoculation) included: (i) inhibition of photosynthesis in terms of photosystem II efficiency; (ii) activation of energy dissipation as non-photochemical quenching in photosystem II, which is related to the activation of plant defense mechanisms; and (iii) accumulation of secondary metabolites in cell walls of the epidermis (lignins) and the apoplast of the mesophyll (phytoalexins). Infiltrated tissues showed an increase in the content of the main hormones regulating stress responses, including abscisic acid, jasmonic acid, and salicylic acid. We propose a mechanism involving the three hormones by which N. benthamiana could activate an efficient defense response against D. dadantii. | ca_CA |
dc.description.sponsorShip | This work was supported by FEDER Funds, RECUPERA 2020 [grant number 20134R060 to MB]; Junta de Andalucía [grant number P12-AGR370 to MB]; and Ministerio de Economía y Competitividad [grant number AGL2012-32516 to EL-S]. EG and MP-B were recipient of a JAE-Doc contract funded by CSIC. | ca_CA |
dc.format.extent | 13 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Frontiers Media | ca_CA |
dc.relation.isPartOf | Frontiers in plant science, 2015, vol. 6 | ca_CA |
dc.rights | Copyright © 2016 Pérez-Bueno, Granum, Pineda, Flors, Rodriguez-Palenzuela, López-Solanilla and Barón. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. This Document is Protected by copyright and was first published by Frontiers. All rights reserved. it is reproduced with permission. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Dickeya dadantii | ca_CA |
dc.subject | necrotroph | ca_CA |
dc.subject | plant resistance | ca_CA |
dc.subject | chlorophyll fluorescence imaging | ca_CA |
dc.subject | multicolor fluorescence imaging | ca_CA |
dc.subject | thermal imaging | ca_CA |
dc.title | Temporal and Spatial Resolution of Activated Plant Defense Responses in Leaves of Nicotiana benthamiana Infected with Dickeya dadantii | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.3389/fpls.2015.01209 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4705309/ | ca_CA |
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