Table 3.
Cytokinin levels in UCMB 5113 exudates
| Sample/time | Cytokinin content (fmol/μl) | |||
|---|---|---|---|---|
| CK-Ba | CK-R | CK-Nuc | CK-Ogl | |
| LB+5113 | ||||
| T0 | 16.08 ± 1.24c | 279.8 ± 32.0a | 0.61 ± 0.16b | 17.31 ± 1.87a |
| T24 | 146.4 ± 17.8b | 5.46 ± 1.19b | 3.42 ± 0.63a | 0.38 ± 0.06b |
| T72 | 194.7 ± 13.la | 1.40 ± 0.26b | 0.73 ± 0.23b | 0.32 ± 0.07b |
| T120 | 152.4 ± 16.9b | 3.91 ± 0.99b | 0.63 ± 0.13b | 0.25 ± 0.02b |
| LB+5113 + root exudate | ||||
| T0 | 15.98 ± 1.08c | 300.6 ± 29.1a | 0.66 ± 0.15b | 16.66 ± 3.65a |
| T24 | 167.0 ± 13.9b | 9.45 ± 1.22b | 1.80 ± 0.29a | 0.21 ± 0.02b |
| T72 | 214.9 ± 22.7a | 1.92 ± 0.43b | 0.68 ± 0.16b | 0.10 ± 0.05b |
| T120 | 205.4 ± 25.9a | 3.08 ± 0.86b | 0.39 ± 0.04c | 0.06 ± 0.02b |
| LB+root exudate | ||||
| 14.01 ± 1.64 | 292.4 ± 43.9 | 0.53 ± 0.10 | 18.66 ± 3.36 | |
| LB | ||||
| 12.91 ± 1.88 | 273.7 ± 40.4 | 0.50 ± 0.13 | 14.94 ± 3.20 | |
Total cytokinin bases (CK-Ba), cytokinin ribosides (CK-R), cytokinin nucleotides (CK-Nuc), and cytokinin O-glucosides (CK-Ogl) were measured in UCMB 5113 exudates at 0 (T0), 24 (T24), 72 (T72), and 120 h (T120) of continuous growth. Means and standard deviation of three biological samples and of each three technical replicates are shown
Treatments labelled with identical letters are not significant at p < 0.05