## 2 Results
### Microbial Assay
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & & \multicolumn{3}{c}{**Aerial Parts**} & \multicolumn{3}{c}{**Roots**} \\ \hline
**Lp.** & **Bacterial Strains** & **MIC\({}_{90}\)** & **MBC** & **MIC\({}_{90}\)** & **MBC** \\ \hline
1. & _M. luteus_ PCM 1944 & 250 & 250 & 500 & 500 \\
2. & _S. canis_ KW-Sac1 & 250 & 250 & 500 & \(<\)500 \\
3. & _S. agalactica_ PCM 2683 & 250 & 500 & 500 & \(<\)500 \\
4. & _S. aureus_ PCM 2054 & 250 & 500 & \(<\)500 & \(<\)500 \\
5. & _S. presidenttemtemtemtem_ PCM 2741 & 250 & 500 & 500 & \(<\)500 \\
6. & _B. subtilis_ PCM 1949 & 500 & \(<\)500 & \(<\)500 & \(<\)500 \\
7. & _B. cereus_ PCM 2019 & 500 & \(<\)500 & \(<\)500 & \(<\)500 \\
8. & _E. coli_ PCM 2057 & \(<\)500 & \(<\)500 & \(<\)500 & \(<\)500 \\
9. & _P. aeruginosa_ PCM 2058 & \(<\)500 & \(<\)500 & \(<\)500 & \(<\)500 \\
10. & _P. carotorova_ IOR 1815 & 125 & 250 & 500 & 500 \\
11. & _P. carotorova_ IOR 1822 & 125 & 250 & 500 & 500 \\
12. & _E. chryslamtemi_ IOR 1452 & 250 & 250 & 500 & \(<\)500 \\
13. & _P. atsepticum_ IOR 1825 & 250 & 250 & 250 & 500 \\
14. & _C. albicans_ ATCC 10231 & \(<\)500 & \(<\)500 & \(<\)500 & \(<\)500 \\ \hline \hline \end{tabular}  
MIC\({}_{90}\)—minimum inhibitory concentration causing a 90% growth inhibition. MBC—minimal bactericidal concentration. \(<\) lucativity at a dose 125 to 500 \(\upmu\)g/mL.  
\end{table} 
Table 4: The MIC\({}_{90}\) and MBC values (\(\upmu\)g/mL) of _Solanum nigrum_ methanol extracts against pathogenic bacterial strains. Figure 1: Examples of zones of growth inhibition of _P. atrosepticum_ 1825 (**A**) and _E. coli_ 2057 (**B**) by extracts of _S. nigrum_ aerial parts (1 = czn) and roots (2 = K) (R—solvent 10% DMSO, A—antibiotics tetracycline—30 \(\upmu\)g/disc). inhibited the fungus by 20%. The highest antifungal activity of _S. nigrum_ extracts was recorded in the case of _Alternaria alternata_ and _Chaetomium globosum_. For both fungi, the growth inhibition coefficient value rose with the extract dosage increase, reaching 55 and 56, respectively, in the highest dose of 500 \(\mathrm{\SIUnitSymbolMicro g}\)/mL. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{**Extract from Aerial Parts**} & \multicolumn{6}{c}{**Extract from Roots**} \\ \hline  & \(\mathbf{\mu}\)**g/mL** & **50** & **100** & **250** & **500** & **50** & **100** & **250** & **500** \\ \hline \multicolumn{10}{c}{**Fungal species**} \\ \hline
1. & _A. alternata_ & 23 & 33 & 35 & 55 & 10 & 12 & 36 & 55 \\
2. & _A. flavus_ & 7 & \(-4\) & \(-6\) & \(-29\) & 7 & 27 & 33 & \(-9\) \\
3. & _A. niger_ & \(-5\) & 13 & 17 & 13 & 3 & 4 & 9 & 18 \\
4. & _A. versicolor_ & 3 & 34 & 24 & -6 & 5 & 4 & 3 & \(-14\) \\
5. & _Ch. globosum_ & 20 & 32 & 40 & 56 & 3 & 14 & 24 & 50 \\
6. & _C. herbarum_ & 7 & \(-14\) & \(-6\) & \(-10\) & 7 & \(-4\) & 10 & 13 \\
7. & _E. nigrum_ & 2 & 0 & \(-2\) & \(-5\) & 8 & \(-4\) & 20 & \(-16\) \\
8. & _P. notatum_ & 7 & 5 & 9 & \(-7\) & 27 & 36 & 29 & 17 \\
9. & _B. sonkiniuna_ & 6 & 5 & 8 & 20 & \(-5\) & 18 & 27 & 43 \\
10. & _F. oxysporum_ & 10 & 10 & \(-7\) & 5 & 5 & 7 & \(-7\) & 5 \\
11. & _T. aggressivenessum_ & 0 & 0 & 0 & 22 & 0 & 0 & 0 & 14 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: The coefficient of colonies growth inhibition or stimulation (%) of filamentous fungi with the addition of extracts from _Solanum nigrum_. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{**Aerial Parts Extract (\(\mathbf{\mu}\)g/mL)**} & \multicolumn{6}{c}{**Root Extracts (\(\mathbf{\mu}\)g/mL)**} \\ \hline  & \begin{tabular}{c} **Fungal** \\ **Species** \\ \end{tabular}  & **50** & **100** & **250** & **500** & **50** & **100** & **250** & **500** \\ \hline
1. & _A. alternata_ & \( \begin{array}{c}55.2\pm 2.1\\ (74)\end{array} \) & \( \begin{array}{c}47.4\pm 2.5\\ (64)\end{array} \) & \( \begin{array}{c}55.6\pm 3.4\\ (74)\end{array} \) & \( \begin{array}{c}19.7\pm 1.2\\ (27)\end{array} \) & \( \begin{array}{c}46.5\pm 1.1\\ (63)\end{array} \) & \( \begin{array}{c}48.4\pm 0.7\\ (65)\end{array} \) & \(