Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/7598
Title: Belowground mutualists and the invasive ability of Acacia longifolia in coastal dunes of Portugal
Authors: Rodríguez-Echeverría, Susana 
Crisóstomo, João 
Nabais, Cristina 
Freitas, Helena 
Issue Date: 14-May-2008
Abstract: The ability to form symbiotic associations with soil microorganisms and the consequences for plant growth were studied for three woody legumes grown in five different soils of a Portuguese coastal dune system. Seedlings of the invasive Acacia longifolia and the natives Ulex europaeus and Cytisus grandiflorus were planted in the five soil types in which at least one of these species appear in the studied coastal dune system. We found significant differences between the three woody legumes in the number of nodules produced, final plant biomass and shoot 15N content. The number of nodules produced by A. longifolia was more than five times higher than the number of nodules produced by the native legumes. The obtained 15N values suggest that both A. longifolia and U. europaeus incorporated more biologically-fixed nitrogen than C. grandiflorus which is also the species with the smallest distribution. Finally, differences were also found between the three species in the allocation of biomass in the different studied soils. Acacia longifolia displayed a lower phenotypic plasticity than the two native legumes which resulted in a greater allocation to aboveground biomass in the soils with lower nutrient content. We conclude that the invasive success of A. longifolia in the studied coastal sand dune system is correlated to its capacity to nodulate profusely and to use the biologically-fixed nitrogen to enhance aboveground growth in soils with low N content.
URI: http://hdl.handle.net/10316/7598
DOI: 10.1007/s10530-008-9280-8
Rights: openAccess
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
obra.pdf301.72 kBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

85
checked on Nov 8, 2019

WEB OF SCIENCETM
Citations

78
checked on Nov 7, 2019

Page view(s) 50

372
checked on Dec 4, 2019

Download(s)

112
checked on Dec 4, 2019

Google ScholarTM

Check

Altmetric

Dimensions


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.