Journal of Experimental Biology and Agricultural Sciences, Год журнала: 2024, Номер 12(5), С. 742 - 755
Опубликована: Ноя. 29, 2024
Plant growth-promoting rhizobacteria (PGPR) are recognized for enhancing plant growth, protecting against pathogens, and boosting productivity. The present study focused on isolating PGPR from the rhizosphere of wild Musa, screening traits, assessing their effects growth Phaseolus vulgaris L. A total 20 strains were isolated evaluated capacity to solubilize phosphate, produce indole-3-acetic acid (IAA), synthesize siderophores, tolerance salt heavy metals. Among isolates, four most effective isolates selected based 16S rRNA sequencing these identified as: Burkholderia cepacia (RZ27), Agrobacterium larrymoorei (RZ23), Pseudomonas taiwanensis (RZ5), orientalis (RZ3). P. exhibited highest phosphate solubilization ability (222.17 µg/ml), followed closely by B. (222.80 A. (71.57 (19.20 µg/ml). Isolate RZ27 demonstrated greatest at 14%, RZ5 RZ23 (10% each) RZ3 (6%). Notably, only isolate produced IAA, while all except could siderophores. siderophore production was recorded with (33.34% unit, SPU), (29.07 SPU) (27.20 SPU). showed chromium (1840 (1810 µg/ml) (1300 There a noticeable enhancement in when inoculated strains. significantly increased both shoot root lengths biomass compared control; meanwhile, improved fresh weight. These findings suggest that have potential be used as bioinoculants improve development.
Язык: Английский