Artículo
Long-term plasticity in growth, storage and defense allocation produces drought-tolerant juvenile shrubs of Prosopis alpataco R.A. Philippi (Fabaceae)
Fecha de publicación:
06/2012
Editorial:
Elsevier Gmbh
Revista:
Flora
ISSN:
0367-2530
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Evaluation of phenotypic plasticity of plants is important to predict the long-term fate of populations exposed to environmental change. Climate scenarios predict a decrease in rainfall and increase in temperature for Northern Patagonia (Argentina). The long-term assessment of the effect of water shortage on allocation patterns of . Prosopis alpataco provides insights into how climate change could affect this dominant shrub of the Monte Desert. A single-factor (water supply) field experiment was conducted. Phenotypic plasticity in biomass partitioning and allocation to storage and defense was assessed over the course of pre-reproductive growth during five years. Water-effect and size-dependent effects were sorted out. Our results indicate that as plants grow larger, root:shoot ratio increases, as well as total non-structural carbohydrates pool, irrespective of water treatment. Increasing belowground allocation through partitioning to reserves instead of allocation to non-storage mass, favors carbohydrate forms that later can be mobilized. Spine mass ratio increased 3-fold in response to drought. These conservative strategies might facilitate the persistence of . Prosopis alpataco in a novel and drier environment, through the production of drought-tolerant juvenile individuals.
Palabras clave:
ALLOMETRIC TRAJECTORY
,
BIOMASS ALLOCATION
,
CLIMATE CHANGE
,
PLASTICITY
,
SPINES
,
TNC
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Vilela, Alejandra Elena; Agüero, Paola R.; Ravetta, Damián Andrés; González Paleo, Luciana; Long-term plasticity in growth, storage and defense allocation produces drought-tolerant juvenile shrubs of Prosopis alpataco R.A. Philippi (Fabaceae); Elsevier Gmbh; Flora; 207; 6; 6-2012; 436-441
Compartir
Altmétricas