Table 2

Prey discrimination is associated with non-enzymatic fractions.

Fraction

NE

E

t

df


Peak I

67.4 (11.9)

51

68.7 (12.3)

49 (5.3)

0.09

0.22

16

Peak IIa

72.9 (15.6)

50

59.0 (12.7)

50 (7.0)

0.70

0.01

10

Peak IIb

73.3 (18.4)

49

69.2 (15.3)

51 (4.3)

0.22

0.25

9

Peak III

25.3 (5.1)

32

53.6 (7.7)

68 (3.2)

4.24**

5.78**

10

Small peptide peaks (combined)

33.0 (7.7)

49

52.7 (24.6)

51 (11.7)

0.79

0.12

8


Mean number of tongue flicks and mean percent (lower values) tongue flicks (s.e.m.) directed at non-envenomated (NE) and envenomated (E) mice by Crotalus atrox when mice were envenomated using BioGel Peaks I, IIa, IIb, III or combined peptide peaks. Single-sample t-test was conducted on mean percentages in which mean percent tongue flicks to E mice were compared with 50%, the value expected under the null hypothesis. Because the two means within each paired comparison are not independent, the same t-value but with the opposite sign would be obtained for each mean. For raw data, see Additional file 1, Table S1. ** P < 0.01.

Saviola et al. BMC Biology 2013 11:20   doi:10.1186/1741-7007-11-20

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