Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 444669
Title Intraspecific variation of a desert shrub species in phenotypic plasticity in response to sand burial
Author(s) Xu, L.; Huber, H.; During, H.J.; Dong, M.; Anten, N.P.R.
Source New Phytologist 199 (2013)4. - ISSN 0028-646X - p. 991 - 1000.
Department(s) Centre for Crop Systems Analysis
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) shade-avoidance responses - mechanical-properties - impatiens-capensis - shoot elongation - trifolium-repens - rumex-palustris - soil nutrients - plants - growth - stress
Abstract Shoot elongation is one of the main plastic responses of plants to burial, a ubiquitous stress factor in dry ecosystems. Yet, intraspecific variation in this response to burial and the extent to which this variation is functionally coordinated with variation in other trait responses are largely unknown. We subjected seedlings of the shrub Caragana intermedia from 18 maternal parents (i.e. different half-sib families) to repeated partial burial to investigate how burial affects shoot growth, stem mechanical traits and associated plasticity. Burial increased both stem elongation and diameter growth of plants, but decreased biomass production. Half-sib families had different rates of shoot elongation, and differed in their response to burial with respect to biomechanical stem properties. Across half-sib families, the magnitude of these responses in mechanical traits was positively correlated with the magnitude of the stem elongation response. These results indicate that plasticity in different stem traits in response to sand burial and intraspecific variation therein are functionally coordinated with respect to mechanical stability. The results emphasize the importance of considering functionally coordinated traits when analyzing phenotypic plasticity in plants.
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