Título

Are seed mass and seedling size and shape related to altitude? Evidence in Gymnocalycium monvillei (Cactaceae)

Autor

karen bauk

Reyes Manuel Pérez Sánchez

Sebastián Rodolfo Zeballos

Maria Laura Las Peñas

Joel David Flores Rivas

Diego E. Gurvich

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Identificador alterno

doi: https://doi.org/10.1139/cjb-2015-0026

Materias

Altitudinal gradients - (AUTOR) Gymnocalycium - (AUTOR) Seed mass - (AUTOR) Seedling morphology - (AUTOR) Cactaceae - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) BIOLOGÍA VEGETAL (BOTÁNICA) - (CTI) BIOLOGÍA VEGETAL (BOTÁNICA) - (CTI)

Resumen o descripción

"Several studies reported a negative relationship between altitude and seed mass. In cactus species, seed mass has been also related to seedling morphology (size and shape). Here we studied Gymnocalycium monvillei (Lem.) Pfeiff. ex Britton & Rose, a cactus species with a wide altitudinal distribution, with the main aim of analyzing how altitude affects seed mass and seedling size (height and width) and shape (globose or columnar). We collected seeds from five sites along the entire altitudinal distribution of the species in the Córdoba Mountains (sites were located between 878 and 2230 m a.s.l.), encompassing a marked climatic gradient (6 °C of mean annual temperature difference between the extreme sites). Seed mass and seedling traits were measured in the laboratory. Seedling height increased with altitude, whereas seed mass was not related to this parameter. Seedlings became more globose (reduced surface/volume ratio) with decreasing altitude. Variation in seedling shape along the altitudinal gradient may be related to the contrasting climatic conditions to which seedlings are exposed, and could account for the wide altitudinal distribution of G. monvillei. Our results highlight the importance of seedling traits in the species’ response to climatic change."

Editor

Canadian Science Publishing

Fecha de publicación

2015

Tipo de publicación

Artículo

Versión de la publicación

Versión aceptada

Recurso de información

http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1933

Formato

application/pdf

Relación

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Sánchez, Reyes

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Zeballos, Sebastián

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Las Peñas, Maria

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Flores, Joel

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Gurvich, Diego. (2015). Are seed mass and seedling size and shape related to altitude? Evidence in Gymnocalycium monvillei (Cactaceae). Botany, 93(8): 529-533. 10.1139/cjb-2015-0026.

Sugerencia de citación

Bauk, Karen

Repositorio Orígen

Repositorio IPICYT

Descargas

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