Plant species | Part used | Solvent used | Mortality per test dose | LC50 (µg/ml) | Toxicity | |||
---|---|---|---|---|---|---|---|---|
10 µg/ml | 100 µg/ml | 1000 µg/ml | Meyer’s toxicity index [41] | Clarkson’s toxicity index [44] | ||||
A. polystachyus | Roots | Acetone | 0 | 1 | 50 | 195.17 (109.11–349.08) | Toxic | Moderately toxic |
 |  | Distilled water | 0 | 0 | 0 | No death | Non-toxic | Non-toxic |
 |  | Methanol | 0 | 6 | 49 | 174.26 (93.37–325.23) | Toxic | Moderately toxic |
K. gueinzii | Root bark | Acetone | 0 | 0 | 0 | No death | Non-toxic | Non-toxic |
 |  | Distilled water | 0 | 0 | 3 | 148,735,210.7 (2,807,216.20–7,880,462,816) | Non-toxic | Non-toxic |
 |  | Methanol | 0 | 0 | 1 | 1.0 × 1016 (2.0 × 1012–5.1 × 1019) | Non-toxic | Non-toxic |
R. elegans | Root tuber | Acetone | 0 | 2 | 50 | 175.77 (98.27–314.39) | Toxic | Moderately toxic |
 |  | Distilled water | 0 | 0 | 45 | 422.09 (199.52–893.59) | Toxic | Moderately toxic |
 |  | Methanol | 0 | 5 | 50 | 168.76 (94.35–301.85) | Toxic | Moderately toxic |
1% DMSO | – | – | 0 | 0 | 0 | No death | Non-toxic | Non-toxic |
Vincristine sulphate | – | – | 8 | 31 | 50 | 45.77 (19.75–106.06) | Toxic | Highly toxic |