The dominance of Rhizobacteria over Mycorrhiza in Sorghum Roots-microbial association in Ameliorating water deficit in the Sahel Region

Biotic and abiotic stresses are major constraints to agricultural production, especially in desert environments where water deficit is more pronounced. Rhizobacteria and Mycorrhizia promote plant growth by regulating nutritional and hormonal balance, producing plant growth regulators, solubilizing nutrients, and inducing resistance against plant pathogens. This synergy is affected by environmental factors such as soil type, nutrition, moisture, and temperature. Surprisingly, salinity and drought favour rhizobacteria colonization over mycorrhiza in the rhizosphere. This could be attributed to the unique metabolic capabilities of certain thermophilic rhizobacteria, while only a dozen fungal taxa may contribute to these variations. The study uses a molecular approach to identify sorghum roots-microbial association in ameliorating water deficit in the Sahel.