Noor Dakhil Huassain’s scientific contributions

This study was conducted to investigate the effect of different bacterial species (Bacillus nealsoni, Alcaligenes faecalis, Bacillus bataviensis, Bacillus niacini and Stenotrophomonas maltophilia) isolated from the soil of Sawa Lake coast area as biological control agents against pathogenic plant fungi Fusarium oxysporum, Aspergillus parasiticus and Penicillium sp). The results showed that the highest rates of inhibition against the pathogenic fungi resulted where using B. nealsoni, B. bataviensis and (S. maltophilia) isolates, which led to inhibition rates of 75.92, 75.89 and 75.51%, respectively, compared to other bacterial isolates. It was also found that the same bacterial isolates showed high ability to dissolve phosphorous. B. bataviensis recorded the highest solubility factor of phosphorous with a value of 2.15, while S. maltophilia recorded the highest rate in the biofilm thickness (3.43 mm) and the highest rate of vitality coefficient (25.95).