Plant Growth-Promoting Rhizobacteria Isolated from Degraded Habitat Enhance Drought Tolerance of Acacia (Acacia abyssinica Hochst. ex Benth.) Seedlings

Table 2

In vitro features of the strains selected based on water stress-tolerant potentials.

S. No.	Isolate code	Closest relatives	Mean ± SD 600 nm OD (n = 3)	Tolerance levels
1	BS-45	Bacillus thuringiensis	0.53 ± 0.12	CT
2	PS-16	Enterococcus gallinarum	0.54 ± 0.17	CT
3	FB-50	Paenibacillus polymyxa	0.51 ± 0.16	CT
4	RS-79	Agrobacterium tumefaciens	0.57 ± 0.20	CT
5	RS-72	Ochrobactrum intermedium	0.52 ± 0.22	CT
6	BS-27	Acinetobacter calcoaceticus	0.59 ± 0.19	CT
7	BS-19	Pseudomonas putida	0.60 ± 0.12	CT
8	FB-49	Pseudomonas fluorescens	0.64 ± 0.15	CT
9	PS-2	Klebsiella michiganensis	0.50 ± 0.17	CT
10	RS-65	Serratia marcescens	0.55 ± 0.15	CT

Values are mean ± standard deviation.