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Diversity and structure of the fungal endophytic assemblages from two sympatric coastal grasses.

AuthorsSánchez Márquez, M. Salud ; Bills, Gerald F.; Zabalgogeazcoa, Iñigo
Molecular taxonomy
Issue Date2008
CitationFungal Diversity 2008, 33:87-100
AbstractAmmophila arenaria and Elymus farctus are two grasses which grow in sympatry in sand dunes of the Atlantic coasts of Europe. Culturable fungal endophytes were isolated from leaf and rhizome tissues of eigthy four plants of each species, sampled in 12 different locations in beaches of the northern coast of Galicia (Spain). Morphological and molecular techniques were used for the identification of fungi. One hundred and three different endophytic species were identified in both grasses, 75 in Ammophila and 54 in Elymus. The mean number of species identified did not significantly differ between leaves or rhizomes for any of the grasses. The endophytic assemblages of both grasses were dominated by species capable of infecting both hosts. Endophytes found in both grasses comprised 25% of all species recorded, but produced 61% of all isolates obtained. A statistically significant inverse relationship existed between the similarity of endophytic assemblages and their distance. This spatial effect and species accumulation curves suggested that increasing the number of plants or locations examined would reveal new endophytic species, mostly singletons represented by single isolates, on both grasses.
Publisher version (URL)http://www.fungaldiversity.org/fdp/sfdp/33-5.pdf
Appears in Collections:(IRNASA) Artículos
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