Behavior of soil micromycetes regarding the mercury pollution in the area of Azzaba (Algeria) [Comportement des micromycètes du sol vis-à-vis de la pollution mercurielle dans la région d'Azzaba (Algérie)]

The azzaba region (algeria) is characterized by the establishment of a factory mercury currently closed,bringing over many years harming the environment. our research is mainly based on the detection and evaluation of the degree of mercury pollution of soil around the pollution source and study the behavior of this substrate micromycetes regarding the pollutant (mercury) .the determination of mercury in samples of soil was carried out by atomic absorption cold vapor .the isolation of the fungal microflora was performed according the method of warcup and its identification was based on microscopic observation and according identification key of micromycetes. this study allowed us to evaluate the mercury pollution of controlled sites and assess the spatial variations of the fungal microflora substrates regarding the pollutant. in this regard,we found that seven strains isolated micromycetes can be considered as resistant to high levels of mercury: acremonium sp,fusarium solani,neosartorya fischeri varioti paecilomyces,phialophora malarum,phoma sp,trichoderma harzianum. this work would open up prospects of research that would generate real bio- indicator species for mercury pollution.