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Table 2 The physiological and biochemical responses of adult H . longicornis after low-temperature treatments

From: Cold hardiness and biochemical response to low temperature of the unfed bush tick Haemaphysalis longicornis (Acari: Ixodidae)

Treatment

Physiological and biochemical response (adult)

Survival rate (%)

Super-cooling point (°C)

Water (%)

Glycerol (μg/mL)

Protein (μg/mL)

Control

100 ± 0.0

-19.0 ± 3.7

56.7 ± 0.6

1.1 ± 0.1

29.8 ± 2.3

0°C 2 h

100 ± 0.0

-19.8 ± 2. 7**

63.3 ± 1.4**

1.0 ± 0.1

11.8 ± 1.7*

5°C 2 h

100 ± 0.0

-20.3 ± 2.4**

62.2 ± 2.1**

1.1 ± 0.2

10.8 ± 4.8*

0°C 10d

98.2 ± 0.7

-20.7 ± 2.3**

49.6 ± 3.4**

3.1 ± 0.4**

59.3 ± 9.8**

0°C 20d

96.5 ± 1.2

-21.3 ± 1.8**

48.4 ± 1.0**

4.4 ± 0.6**

20.0 ± 4.8

  1. *p < 0.05, **p < 0.01.