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Title

Light availability Influences growth-defense trade-offs in big-leaf mahogany (Swietenia macrophylla King)

Other TitlesLight availability and Chemical Defenses in Mahogany
AuthorsAbdala-Roberts, Luis; Moreira Tomé, Xoaquín ; Cervera, José Carlos; Parra-Tabla, Víctor
KeywordsAllocation constraints
Condensed tannins
Optimal defense;
Plant defenses
Polyphenolics
Resource availability
Yucatan
Issue DateSep-2014
PublisherWiley-Blackwell
CitationBiotropica 46 (5): 591–597 (2014)
Abstract[EN] We report on findings from a common garden experiment showing that the magnitude of change in the production of phenolic compounds in response to different amounts of light availability is tissue-specific in saplings of big-leaf mahogany (Swietenia macrophylla). Moreover, we show that trade-offs between growth and the production of chemical defenses emerge only under light-limited conditions. These findings emphasize the need for considering the specificity of plant defensive responses to resource availability, as well as the influence of the abiotic environment (via trade-offs) on plant defense allocation patterns.
[ES] En este trabajo demostramos que los cambios en la inversión en defensas químicas de plántulas de caoba (Swietenia macrophylla) en respuesta a diferentes regímenes de disponibilidad de luz difiere entre tejidos. De igual forma, encontramos que la expresión de compromisos de asignación de recursos entre crecimiento y defensas solo se presenta bajo condiciones de baja disponibilidad de luz. Nuestros resultados subrayan la importancia de considerar la especificidad de las respuestas en plantas a cambios en la disponibilidad de recursos, así como la influencia del contexto abiótico (a través de compromisos) sobre los patrones de asignación de defensas contra herbívoros.
Publisher version (URL)http://dx.doi.org/10.1111/btp.12133
URIhttp://hdl.handle.net/10261/103529
DOI10.1111/btp.12133
ISSN0006-3606
E-ISSN1744-7429
Appears in Collections:(MBG) Artículos
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