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Publication Type J
Authors Macia-Vicente, J. G., H. B. Jansson, S. K. Abdullah, E. Descals, J. Salinas and L. V. Lopez-Llorca
Title Fungal root endophytes from natural vegetation in Mediterranean environments with special reference to Fusarium spp
Source Fems Microbiology Ecology
Author Keywords endophytic fungi roots sandy soils salt marshes ITS TEF secondary metabolites host interaction plant-roots oxysporum continuum colonization biodiversity associations diversity symbiosis
Abstract Surveys (in 2002 and 2003) were performed for fungal endophytes in roots of 24 plant species growing at 12 sites (coastal and inland soils, both sandy soils and salt marshes) under either water or salt stress in the Alicante province (Southeast Spain). All plant species examined were colonized by endophytic fungi. A total of 1830 fungal isolates were obtained and identified by morphological and molecular [internal transcribed spacer (ITS) and translation elongation factor-1 alpha gene region (TEF-1 alpha) sequencing] techniques. One hundred and forty-two fungal species were identified, belonging to 57 genera. Sterile mycelia were assigned to 177 morphospecies. Fusarium and Phoma species were the most frequent genera, followed by Aspergillus, Alternaria and Acremonium. Fungal root endophytic communities were influenced by the soil type where their respective host plants grew, but not by location (coastal or inland sites). Fusarium oxysporum, Aspergillus fumigatus and Alternaria chlamydospora contributed most to the differences found between endophytic communities from sandy and saline soils. Host preference was found for three Fusarium species studied. Fusarium oxysporum and Fusarium solani were especially isolated from plants of the family Leguminosae, while Fusarium equiseti showed a preference for Lygeum spartum (Gramineae). In some cases, specificity could be related to intra-specific variability as shown by sequencing of the TEF-1 alpha in the genus Fusarium.
Author Address [Macia-Vicente, Jose G.; Jansson, Hans-Boerje; Salinas, Jesus; Lopez-Llorca, Luis V.] Univ Alicante, Dept Marine Sci & Appl Biol, Plant Pathol Lab, Alicante 03080, Spain. [Macia-Vicente, Jose G.; Jansson, Hans-Boerje; Salinas, Jesus; Lopez-Llorca, Luis V.] Univ Alicante, Multidisciplinary Inst Environm Studies MIES Ramo, Alicante 03080, Spain. [Abdullah, Samir K.] Univ Basrah, Coll Sci, Dept Biol, Basrah, Iraq. [Descals, Enric] CSIC, UIB, Inst Mediterrani Estudis Avancats, Balears, Spain. Jansson, HB (reprint author), Univ Alicante, Dept Marine Sci & Appl Biol, Plant Pathol Lab, Apto 99, Alicante 03080, Spain. hb.jansson@ua.es
ISSN 0168-6496
ISBN 0168-6496
29-Character Source Abbreviation FEMS Microbiol. Ecol.
Publication Date Apr
Year Published 2008
Volume 64
Issue 1
Beginning Page 90-105
Digital Object Identifier (DOI) 10.1111/j.1574-6941.2007.00443.x
Unique Article Identifier WOS:000253886700009
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