Résumé:
Endophytic fungi seem to play particle roles for the survival of plants inhabiting stressful habitats. This study focused on the
identification of fungal endophytic community, associated with roots plants growing in salt environments by sequencing
ITS and 18S rDNA regions. Based on the culture characteristics and growth morphology of colonies, 6 fungi species
obtained from roots were collected from three plots with different salinities (< 4 dS/m, 4 to 8 dS/m and 8 to 16 dS/m). ITS
sequences and 18S rDNA gene were compared with those available in the GenBank databases, to identify the following
species: Alternaria chlamydospora and Chaetomium coarctatum (salinity < 4dS/m), Alternaria chlamydospora, Embellisia
phragmospora, Phoma betae, Fusarium equseti, Chaetomium coarctatum and Fusarium graminearum (4 to 8dS/m); and
Chaetomium coarctatum (8 to 16dS/m). Results indicate that Chaetomium coarctatum was considered as the most dominant
fungus in studied plots. The fungal root endophytic community in natural vegetation under abiotic salt stress opens up
possibilities for further investigations on the role of endophytes.
