Diversity of AMF associated with Ammophila arenaria ssp. arundinacea in Portuguese sand dunes

Dune vegetation is essential for the formation and preservation of sand dunes and the protection of the coast line. Coastal sand dunes are harsh environments where arbuscular mycorrhizal fungi (AMF) play an important role in promoting plant establishment and growth. We present a study of the diversi...

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Bibliographic Details
Published in:Mycorrhiza 2006-11, Vol.16 (8), p.543-552
Main Authors: Rodríguez-Echeverría, Susana, Freitas, Helena
Format: Article
Language:English
Subjects:
Ammophila arenaria
Arenaria
Biodiversity
Biological and medical sciences
Cloning
Coastal zone management
Dunes
Environmental protection
Fundamental and applied biological sciences. Psychology
Fungi
Glomus
Mycorrhizae - classification
Mycorrhizae - genetics
Mycorrhizae - isolation & purification
Parasitism and symbiosis
Phylogeny
Plant physiology and development
Poaceae - microbiology
Portugal
Rhizosphere
Sand
Scutellospora
Silicon Dioxide
Soil Microbiology
Symbiosis
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Summary:Dune vegetation is essential for the formation and preservation of sand dunes and the protection of the coast line. Coastal sand dunes are harsh environments where arbuscular mycorrhizal fungi (AMF) play an important role in promoting plant establishment and growth. We present a study of the diversity of AMF associated with A. arenaria ssp. arundinacea in two locations of the Portuguese coast under a Mediterranean climate. These two locations were selected to compare a well-preserved dune system from a protected area with a degraded dune system from a public beach. AMF diversity was assessed mainly by cloning and sequencing of a fragment of the ribosomal SSU using the primer NS31 and AM1. Most of the 89 AMF clones obtained from the rhizosphere and roots of A. arenaria belonged to the genus Glomus, the largest clade within the Glomeromycota. Higher AMF diversity was found in the least disturbed site, in which spores of Scutellospora persica, Glomus constrictum and Glomus globiferum were found in the rhizosphere of A. arenaria.
ISSN:0940-6360
1432-1890
DOI:10.1007/s00572-006-0070-9