## 3 Results
### Plant Growth-Promotion on Tomato Seeds  
The plant growth-promotion on tomato seeds by the three selected consortia were analyzed at 25 and 14 \({}^{\circ}\)C. For treatments at 25 \({}^{\circ}\)C, BC2 and BC3 treatments presented a significant increase in hypocotyl length, with values of 4.26 and 4.24 cm, respectively, compared to the NC (3.15 cm) (Figure 7a,b). The treatments did not show significant differences in complete germination % and root length. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \multirow{3}{*}{\(\mathbf{N}^{\circ}\)} & \multirow{3}{*}{**Bacterial Consortia**} & \multirow{3}{*}{**BCC\%**} & \multicolumn{3}{c}{**Plant Growth-Promoting**} & \multicolumn{3}{c}{**Antimicrobial**} \\  & & & & **Activities/Determinations** & & & **Activities** & \\ \cline{3-10}  & & \multirow{2}{*}{**BCS\%**} & \multicolumn{2}{c}{**[Auxin] */**} & \multicolumn{2}{c}{**PS at RT/**} & \multirow{2}{*}{_nifH_} & \multirow{2}{*}{_acdS_} & \multirow{2}{*}{_PSs_} & \multirow{2}{*}{_Pc_} & \multirow{2}{*}{_Cmm_} & \multirow{2}{*}{_At_} \\  & & & **OD\({}_{600\text{nm}}\)** & & & & & & & \\ \hline \multirow{2}{*}{BC1} & \multicolumn{2}{c}{_Pseudomonas_ sp. TmR7} & \multirow{2}{*}{100} & 0.91 & \(+/+\) & \(+\) & \(+\) & \(-\) & \(+\) & \(+\) & \(-\) \\  & \multicolumn{2}{c}{_Frondihabitans_ sp. GpP26d} & 93.26 & 5.146 & \(-/-\) & \(+\) & \(+\) & \(+\) & \(+\) & \(+\) & \(+\) \\ \hline \multirow{2}{*}{BC2} & \multicolumn{2}{c}{_Pseudomonas_ sp. CcR1d} & \multirow{2}{*}{78.88} & 0.074 & \(+/+\) & \(+\) & \(-\) & \(+\) & \(+\) & \(+\) & \(+\) \\  & \multicolumn{2}{c}{_Pseudomonas_ sp. NUR4a} & \multirow{2}{*}{70.55} & 1.342 & \(+/+\) & \(-\) & \(+\) & \(+\) & \(+\) & \(+\) & \(+\) \\ \hline \multirow{2}{*}{BC3} & \multicolumn{2}{c}{_Pseudomonas_ sp. TmR5a} & \multirow{2}{*}{56.23} & 1.223 & \(+/+\) & \(+\) & \(+\) & \(+\) & \(-\) & \(+\) & \(-\) \\  & \multicolumn{2}{c}{_Curbobacterium_ sp. BmP22c} & 84.5 & 1.37 & \(-/-\) & \(-\) & \(+\) & \(+\) & \(+\) & \(+\) & \(+\) \\ \hline \end{tabular}  
* Auxin concentration (ug mL\({}^{-1}\)); BC, bacterial consortium; PT, psychrotolerant; BCS%, bacterial cell survival percentage; PS, phosphate solubilization; RT, room temperature; _PSs, Pseudomonas syringae_ pv. _syngiae_; _Pc, Pectobacterium cartoororum_; _Cmm, Clavibacter miclipangensis_ subsp. _michiganensis_; _At, Agrobacteriumium tunefaciens_; \(+\), positive activity/determination; \(-\), negative activity/determination.  
\end{table} 
Table 6: Characteristics of the selected bacterial consortia. Figure 5: Selected bacterial consortia. The three bacterial consortia formulated with two bacteria are illustrated. Bacteria were grown in Trypic Soy Agar (TSA) medium at room temperature. Abbreviation: BC, bacterial consortium. Figure 6: Effects of selected bacterial consortia on tomato plant growth. Tomato seedlings were arranged in peat pots and inoculated every 2 weeks in roots and at the leaves. (**a**) Representative photograph of tomato plants assay. (**b**) Graphs of parameters evaluated for tomato plants growth. Each value is a mean \(\pm\) SD of seven independent replicates. Significant differences were analyzed by one-way ANOVA followed by LSD Fisher test. Means with different letters indicate significant differences (\(p<0.05\)). Abbreviations: NC, negative control; PC, positive control (Nutrisc); BC1-3, bacterial consortium 1, 2, and 3, respectively. Figure 7: Effect of selected bacterial consortia on the growth of tomato seeds at 25 and 14 \({}^{\circ}\)C in the biopriming assay. (**a**) Representative photograph of tomato seed growth inoculated with selected consortia at 25 \({}^{\circ}\)C. (**b**) Graphs of evaluated parameters of tomato seeds growth at 25 \({}^{\circ}\)C. (**c**) Representative photograph of tomato seed growth inoculated with selected consortia at 14 \({}^{\circ}\)C. (**d**) Graphs of evaluated parameters of tomato seeds growth at 14 \({}^{\circ}\)C. Each value is a mean \(\pm\) SD of three independent replicates, with a total of 30 seeds per treatment.