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dc.contributor.author
Meza Canales, Iván D.
dc.contributor.author
Meldau, Stefan
dc.contributor.author
Zavala, Jorge Alberto
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dc.contributor.author
Baldwin, Ian T.
dc.date.available
2018-06-15T17:44:10Z
dc.date.issued
2017-07
dc.identifier.citation
Meza Canales, Iván D.; Meldau, Stefan; Zavala, Jorge Alberto; Baldwin, Ian T.; Herbivore perception decreases photosynthetic carbon assimilation and reduces stomatal conductance by engaging 12-oxo-phytodienoic acid, mitogen-activated protein kinase 4 and cytokinin perception; Wiley Blackwell Publishing, Inc; Plant, Cell and Environment; 40; 7; 7-2017; 1039-1056
dc.identifier.issn
0140-7791
dc.identifier.uri
http://hdl.handle.net/11336/48818
dc.description.abstract
Herbivory-induced changes in photosynthesis have been documented in many plant species; however, the complexity of photosynthetic regulation and analysis has thwarted progress in understanding the mechanism involved, particularly those elicited by herbivore-specific elicitors. Here, we analysed the early photosynthetic gas exchange responses in Nicotiana attenuata plants after wounding and elicitation with Manduca sexta oral secretions and the pathways regulating these responses. Elicitation with M. sexta oral secretions rapidly decreased photosynthetic carbon assimilation (AC) in treated and systemic (untreated, vascularly connected) leaves, which were associated with changes in stomatal conductance, rather than with changes in Rubisco activity and 1-5 ribulose-1,5-bisphosphate turnover. Phytohormone profiling and gas exchange analysis of oral secretion-elicited transgenic plants altered in phytohormone regulation, biosynthesis and perception, combined with micrografting techniques, revealed that the local photosynthetic responses were mediated by 12-oxo-phytodienoic acid, while the systemic responses involved interactions among jasmonates, cytokinins and abscisic acid signalling mediated by mitogen-activated protein kinase 4. The analysis also revealed a role for cytokinins interacting with mitogen-activated protein kinase 4 in CO2-mediated stomatal regulation. Hence, oral secretions, while eliciting jasmonic acid-mediated defence responses, also elicit 12-oxo-phytodienoic acid-mediated changes in stomatal conductance and AC, an observation illustrating the complexity and economy of the signalling that regulates defence and carbon assimilation pathways in response to herbivore attack.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Photosynthesis
dc.subject
Plant-Insect Interactions
dc.subject
Mapks
dc.subject
Nicotiana Attenuata
dc.subject
Abscisic Acid
dc.subject
Co 2 Regulation
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Gas Exchange
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Hervibore Perception
dc.subject
Jasmonates
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Herbivore perception decreases photosynthetic carbon assimilation and reduces stomatal conductance by engaging 12-oxo-phytodienoic acid, mitogen-activated protein kinase 4 and cytokinin perception
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-06T18:46:01Z
dc.identifier.eissn
1365-3040
dc.journal.volume
40
dc.journal.number
7
dc.journal.pagination
1039-1056
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Meza Canales, Iván D.. Instituto Max Planck Institut für Chemische Okologie; Alemania
dc.description.fil
Fil: Meldau, Stefan. KWS SAAT AG; Alemania
dc.description.fil
Fil: Zavala, Jorge Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina
dc.description.fil
Fil: Baldwin, Ian T.. Instituto Max Planck Institut für Chemische Okologie; Alemania
dc.journal.title
Plant, Cell and Environment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/pce.12874
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/pce.12874
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