Assessment of natural mycorrhizal potential in Genista aspalathoïdes Lamk.: A case study in Djelfa, Algeria

Abstract

Abstract Preliminary survey on the Arbuscular mycorrhizal fungal species composition in the rhizosphere of Genista aspalatoide Lamk subsp. erinaceoides (Lois.) Maire growing in the arid area present in South Algeria were studied. Roots and rhizosphiric soil from this species were analyzed. In this work, we proposed to evaluate the rate of mycorrhizal infection expressed by four parameters. The physical and chemical characteristics of soil were assessed through measurement of pH, electrical conductivity, organic matter, Active calcareous, total calcareous and texture. Spores of fungi harvested in the rhizospheric area were morphologically identified. The results showed that host plants harbored arbuscular mycorrhizal fungi (AMF), The average colonization by these AMFs showed that the frequency of mycorrhizal in the root system (F%) was reached 100%, intensity of colonization M (62.8%), arbuscular content of infection A (39.7%) and arbuscular abundance in mycorrhizal parts of root fragments a (28.4%). Study area characterized by alkaline soils, very low organic matter, and relatively low levels of calcium carbonates with a silt texture. 02 families of endomycorrhizae have been isolated (Glomeraceae and Acaulosporaceae) with a 4 genera Septoglomus, Glomus, rhizophagus and acaulospora.