Table 3.
Measurement of proboscis epimastigotes
| Measurements (μm) | Juxta-posterior | Centre | Juxta-anterior | Anterior | P-value |
|---|---|---|---|---|---|
| Cell length |
23.0 ± 1.4 a |
23.4 ± 1.1 a |
29.0 ± 1.5 ab |
30.8 ± 1.0 b |
0.002 |
| Cell width |
2.2 ± 0.1 a |
2.2 ± 0.1 a |
2.1 ± 0.6 a |
2.1 ± 0.1 a |
0.709 |
| Kinetoplast to posterior |
6.8 ± 0.7 a |
8.6 ± 0.6 a |
14.4 ± 1.2 b |
17.5 ± 0.8 b |
0.001 |
| Nucleus to posterior |
6.6 ± 0.7 a |
7.4 ± 0.5 a |
12.0 ± 1.2 b |
14.0 ± 0.8 b |
0.001 |
| Nucleus length |
2.9 ± 0.2 a |
2.7 ± 0.1 a |
2.8 ± 0.1 a |
2.9 ± 0.1 a |
0.609 |
| Nucleus width |
1.2 ± 0.1 a |
1.2 ± 0.1 a |
1.3 ± 0.1 a |
1.2 ± 0.1 a |
0.393 |
| Nucleus to anterior |
16.4 ± 1.3 a |
16.0 ± 0.9 a |
16.9 ± 0.6 a |
16.9 ± 0.4 a |
0.745 |
| Kinetoplast to anterior |
16.3 ± 1.2 a |
14.8 ± 0.9 a |
14.6 ± 0.6 a |
13.3 ± 0.4 a |
0.048 |
| N | 11 | 28 | 60 | 79 |
Mean measurements of morphological features of proboscis epimastigotes, grouped by relative position of kinetoplast to nucleus (μm ± s.e.m.). Statistics were done for each feature, by row, for differences between relative positions of kinetoplast and nucleus (ANOVA, P-value for the overall model in last column). Means which share the same letter (a or b) are not significantly different by post-hoc testing (P ≤ 0.05). N = number of trypanosomes.