1. Departamento de Biología. Facultad de Ciencias Universidad Autónoma de Madrid Madrid 28049 Spain
2. Laboratory of Biogeochemistry of Desert Areas University of Ouargla Ouargla 30000 Algeria
3. Faculty of Life and Natural Sciences, Department of Agronomy University of El Oued El Oued 39000 Algeria
4. Laboratory of Saharan Bio‐Resources: Preservation and Development University of Ouargla Ouargla 30000 Algeria