Mostrar el registro sencillo del ítem

dc.contributor.author
Izaguirre, Miriam Mercedes
dc.contributor.author
Mazza, Carlos Alberto
dc.contributor.author
Astigueta, María S.
dc.contributor.author
Ciarla, Ana M.
dc.contributor.author
Ballare, Carlos Luis
dc.date.available
2016-02-16T20:16:23Z
dc.date.issued
2013-09
dc.identifier.citation
Izaguirre, Miriam Mercedes; Mazza, Carlos Alberto; Astigueta, María S.; Ciarla, Ana M.; Ballare, Carlos Luis; No time for candy: passionfruit (Passiflora edulis) plants down-regulate damage-induced extra floral nectar production in response to light signals of competition; Springer; Oecologia; 173; 1; 9-2013; 213-221
dc.identifier.issn
0029-8549
dc.identifier.uri
http://hdl.handle.net/11336/4231
dc.description.abstract
Plant fitness is often defined by the combined effects of herbivory and competition, and plants must strike a delicate balance between their ability to capture limiting resources and defend against herbivore attack. Many plants use indirect defenses, such as volatile compounds and extrafloral nectaries (EFN), to attract canopy arthropods that are natural enemies of herbivorous organisms. While recent evidence suggests that upon perception of low red to far-red (R:FR) ratios, which signal the proximity of competitors, plants down-regulate resource allocation to direct chemical defenses, it is unknown if a similar phytochrome-mediated response occurs for indirect defenses. We evaluated the interactive effects of R:FR ratio and simulated herbivory on nectar production by EFNs of passionfruit (Passiflora edulis f. flavicarpa). The activity of petiolar EFNs dramatically increased in response to simulated herbivory and hormonal treatment with methyl jasmonate (MeJA). Low R:FR ratios, which induced a classic “shade-avoidance” repertoire of increased stem elongation in P. edulis, strongly suppressed the EFN response triggered by simulated herbivory or MeJA application. Strikingly, the EFN response to wounding and light quality was localized to the branches that received the treatments. In vines like P. edulis, a local response would allow the plants to precisely adjust their light harvesting and defense phenotypes to the local conditions encountered by individual branches when foraging for resources in patchy canopies. Consistent with the emerging paradigm that phytochrome regulation of jasmonate signaling is a central modulator of adaptive phenotypic plasticity, our results demonstrate that light quality is a strong regulator of indirect defenses.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Indirect Defenses
dc.subject
Herbivory
dc.subject
Extrafloral Nectaries
dc.subject
Jasmonate
dc.subject
Phytochrome
dc.subject
Passiflora
dc.subject.classification
Ciencias de las Plantas, Botánica
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
No time for candy: passionfruit (Passiflora edulis) plants down-regulate damage-induced extra floral nectar production in response to light signals of competition
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
173
dc.journal.number
1
dc.journal.pagination
213-221
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Izaguirre, Miriam Mercedes. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Produccion Vegetal. Catedra de Fruticultura; Argentina
dc.description.fil
Fil: Mazza, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.description.fil
Fil: Astigueta, María S.. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Produccion Vegetal. Catedra de Fruticultura; Argentina
dc.description.fil
Fil: Ciarla, Ana M.. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Produccion Vegetal. Catedra de Fruticultura; Argentina
dc.description.fil
Fil: Ballare, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad Nacional de San Martín; Argentina
dc.journal.title
Oecologia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00442-013-2721-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00442-013-2721-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/issn/0029-8549


Archivos asociados

Documento no disponible

Comunidades y colecciones

Mostrar el registro sencillo del ítem