العنوان | عزل وتحديد بعض أنواع الرايزوبكتيريا المحفزة لنمو النبات (PGPR) من بعض المخصبات الحيوية |
heading | Isolation and Identification of some Species of Plant Growth Promoting Rhizobacteria (PGPR) from some Bio-fertilizers |
Authors | د.ياسر حماد |
Dr. Yaser Hammad |
Keywords | Plant Growth Promoting Rhizobacteria (PGPR), Azotobacter chroococcum, Pseudomonas fluorescens, Bacillus circulans, Isolation, Identification |
الكلمات المفتاحيّة | البكتيريا المحفزة لنمو النبات (PGPR)، Pseudomonas fluorescens، Azotobacter chroococcum، Bacillus circulans، عزل، تعريف. |
summary | This study was conducted to isolate and identify some species of Plant Growth Promoting Rhizobacteria (PGPR) form three biofertilizers; Rhizobacterin, Phosphorine and Potassiomag. Specific bacterial media were used for Isolation and identification of bacterial species. The isolates were identified according to its cultural and morphological characteristics, gram staining, microscopy examination, motility and biochemical characteristics. The results showed that the isolates which identified from Rhizobacterin were nitrogen-fixing bacteria Azotobacter chroococcum (NFBac). We also isolated and identified two other isolates; phosphate mobilizing bacteria Pseudomonas fluorescens (PSBpf) and Potas solubilizing bacteria Bacillus circulans (KSBbc) from commercial complex Phosphorine and Potassiomag, Respectively |