Table 3.
Phyto-toxicity study of thiazole yellow G dye and its degraded products after 5 days of treatment using Aspergillus niger.
| Parameters studied |
Water | Thiazole Yellow G dye (Control) |
Thiazole Yellow G dye (metabolites) |
|---|---|---|---|
| Vigna unguiculata (dicot) | |||
| Germination (%) | 100 | 70 | 100 |
| Plumule (cm) | 11.42 ± 0.05 | 5.89 ± 0.01* | 9.15 ± 0.09** |
| Radicle (cm) | 5.76 ± 0.02 | 2.05 ± 0.02* | 4.43 ± 0.01** |
| Sorghum bicolor (monocot) | |||
| Germination (%) | 100 | 80 | 90 |
| Plumule (cm) | 6.47 ± 0.04 | 3.21 ± 0.05* | 5.17 ± 0.03** |
| Radicle (cm) | 5.15 ± 0.01 | 2.57 ± 0.09* | 4.03 ± 0.15** |
Valuesa are presented as mean of three experiments ± S.E.M.
Root and shoot lengths of fifty (50) plants grown in thiazole G dye and its metabolites are significantly different from that of plants grown in sterile distilled water by *P < 0.001, **P < 0.01.