|
Statistical analysis of contraction cycle durations in Tethya wilhelma Results of a Mann-Whitney U-test on differences between endogenous and influenced contraction cycle durations (Dcc) of T. wilhelma (each comparison within one experimental series). |
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| Substance |
Concentration |
Figure |
Dcc endogenous [min] |
Dcc substance-exposed [min] |
U-test |
significant difference in Dcc? |
|
|
||||||
| Acetycholine |
2.8 mM |
2a |
78.3 ± 5.3 (N = 9) |
86.9 ± 2.3 (N = 9) |
p < 0.001 |
yes |
| Nicotine |
25 – 50 μM |
2b |
101.3 ± 8.6 (N = 4) |
111.3 ± 10.6 (N = 4) |
p > 0.01 |
no |
| Caffeine |
515 μM |
3a |
93.1 ± 7.6 (N = 6) |
85.3 ± 7.3 (N = 6) |
p > 0.01 |
no |
| 515 μM |
3b |
105.0 ± 7.7 (N = 5) |
44.12 ± 21.0 (N = 5) |
p < 0.01 |
yes |
|
| 515 μM |
3c |
85.5 ± 19.3 (N = 14) |
52.5 ± 17.2 (N = 18) |
p < 0.001 |
yes |
|
| 257 μM |
3d |
113.3 ± 34.6 (N = 9) |
78.8 ± 23.5 (N =) |
p < 0.01 |
yes |
|
| Glycin |
1.3 mM |
4a |
105.5 ± 23.5 (N = 6) |
54.2 ± 9.1 (N = 14) |
p < 0.001 |
yes |
| 1.3 mM |
4b |
93.0 ± 10.7 (N = 9) |
42.7 ± 5.5 (N = 10) |
p < 0.001 |
yes |
|
| Adrenaline |
44 μM |
5a |
88.7 ± 3.4 (N = 7) |
154.8 ± 58.7 (N = 4) |
p < 0.01 |
yes |
| 22 μM |
5b |
88.5 ± 7.9 (N = 8) |
109.8 ± 6.0 (N = 2) |
n.d.a |
n.d.a |
|
| Serotonine |
260 – 520 μM |
5d |
115.3 ± 14.0 (N = 5) |
96.3 ± 10.0 (N = 5) |
p > 0.01 |
no |
| 65 μM |
5c |
105.0 ± 8.8 (N = 5) |
102.9 ± 2.8 (N = 4) |
p > 0.01 |
no |
|
| (by NOC-12) |
5.7 μM |
6a |
75.8 ± 13.0 (N = 8) |
116.0 ± 23.8 (N = 8) |
p < 0.01 |
yes |
| 22.7 μM |
6b |
95.0 ± 9.4 (N = 6) |
238.0 ± 58.2 (N = 5) |
p < 0.01 |
yes |
|
| cAMP |
288 mM |
7a |
108.0 ± 11.8 (N = 4) |
83.3 ± 5.3 (N = 2) |
n.d.a |
n.d.a |
| 288 mM |
7b |
105.5 ± 23.5 (N = 6) |
73.5 ± 3.5 (N = 2) |
n.d.a |
n.d.a |
|
|
a not determined, not enough data available | ||||||
Ellwanger and Nickel Frontiers in Zoology 2006 3:7 doi:10.1186/1742-9994-3-7 |
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