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Table 1 Total and class-specific relative proteolytic activity and its pH optimum range measured in fungus gardens.

From: Evolutionary patterns of proteinase activity in attine ant fungus gardens

Ant species

Colony number

Sample number

Total activity

pH optimum

Metallo-proteinase activity

pH optimum

Serine proteinase activity

pH optimum

Aspartic proteinase activity

Cysteine proteinase activity

Apterostigma collare

Apcol1

-

630.0 ± 18.3

 

593.0 ± 13.3

 

1.7 ± 0.5

 

16.0 ± 1.0

0.8 ± 0.5

Myrmicocrypta ednaella

Myred1

1

168.6 ± 9.5

6.2 ± 0.11

151.5 ± 6.4

6.0 ± 0.04

9.4 ± 1.0

7.0 ± 0.012

--

9.3 ± 1.0

 

Myred2

2

165.2 ± 9.2

 

104.0 ± 5.0

 

50.1 ± 6.3

 

--

--

Mycocepurus smithii

Mycsmi9

3

114.0 ± 9.0

6.0 ± 0.11

101.6 ± 4.8

6.0 ± 0.1

5.3 ± 1.0

 

4.1 ± 1.0

3.6 ± 1.0

 

Mycsmi15

4

136.6 ± 9.6

 

124.5 ± 8.7

 

6.7 ± 1.0

 

--

--

 

Mycsmi32

5

153.0 ± 10.7

 

148.7 ± 8.5

 

2.8 ± 1.0

 

1.3 ± 1.0

--

Cyphomyrmex costatus

Cycos6

6

65.2 ± 8.2

 

54.8 ± 5.0

 

5.9 ± 2.0

 

1.6 ± 1.0

1.6 ± 0.8

 

Cycos9

7

61.3 ± 5.0

6.0 ± 0.11

47.4 ± 4.5

6.0 ± 0.08

3.3 ± 1.0

 

3.1 ± 1.0

3.7 ± 1.0

 

Cycos16

8

112.5 ± 9.0

 

90.8 ± 4.3

 

19.0 ± 3.2

 

2.8 ± 1.0

--

Cyphomyrmex longiscapus

Cylon12

9

131.5 ± 8.7

6.0 ± 0.09

106.9 ± 7.5

6.0 ± 0.1

18.9 ± 2.0

 

3.2 ± 1.0

3.2 ± 1.1

 

Cylon5

10

140.6 ± 9.8

 

131.0 ± 5.2

 

6.4 ± 2.0

 

3.7 ± 1.0

--

 

Cylon24

11

146.5 ± 9.0

 

132.5 ± 9.0

 

6.6 ± 2.4

 

5.2 ± 1.4

--

Sericomyrmex amabilis

Serama8

12

210.0 ± 8.9

5.2 ± 0.015

48.1 ± 4.4

5.0 ± 0.1

108.1 ± 5.6

7.0 ± 0.075

30.0 ± 10.2

29.0 ± 6.4

 

Serama7

13

194.1 ± 12.4

 

22.3 ± 3.5

 

130.5 ± 6.3

 

30 ± 8.8

26 ± 7.2

 

Serama12

14

308.1 ± 9.0

 

42.5 ± 4.2

 

227.1 ± 9.9

 

21.1 ± 7.4

23.4 ± 5.2

Trachymyrmex cornetzi

Trcor1

15

310.3 ± 10.3

 

262.9 ± 9.1

 

49.4 ± 4.0

 

--

3.2 ± 1.0

 

Trcor3

16

333.4 ± 9.5

 

211.5 ± 7.4

 

46.1 ± 4.2

 

--

78.0 ± 5.5

 

Trcor4

17

257.4 ± 9.2

5.7 ± 0.07

92.4 ± 7.2

6.05 ± 0.1

138.4 ± 8.3

5.7 ± 0,1 7.5 ± 0.05

5.0 ± 1.3

22.1 ± 4.6

 

Trcor10

18

155.0 ± 9.6

5.7 ± 0.07

131.9 ± 7.12

5.7 ± 0.09

7.7 ± 1.0

 

7.14 ± 2.1

7.15 ± 1.1

Trachymyrmex sp. 3

Trsp3-3

19

201 ± 9.1

5.2 ± 0.11

35.0 ± 9.8

5.7 ± 0.09

153.1 ± 10.42

7.5 ± 0.09 5.2 ± 0.09

7.0 ± 1.5

8.4 ± 2.2

 

Trsp3-6

20

249.7 ± 9.4

 

33.5 ± 7.4

 

199.2 ± 9.0

 

--

20.0 ± 7.8

Trachymyrmex zeteki

Trzet2

21

340.1 ± 11.0

 

67.4 ± 5.0

 

215.5 ± 7.5

 

--

55.7 ± 8.8

 

Trzet3

22

342.3 ± 9.5

5.2 ± 0.1

28.4 ± 7.0

5.2 ± 0.09

317.0 ± 7.1

5.35 ± 0.08

--

--

 

Trzet6

23

340.1 ± 8.9

 

70.6 ± 6.0

 

261.5 ± 9.0

 

1.39 ± 1.5

6.5 ± 1.3

Acromyrmex echinator

Acech322

24

323.3 ± 10.0

5.4 ± 0.11

227.5 ± 10.6

5.2 ± 0.09

66.5 ± 6.4

7.5 ± 0.06

18.5 ± 6.3

--

Acromyrmex octospinosus

Acoct1

25

454.2 ± 15.2

 

322.1 ± 12.5

 

64.2 ± 5.5

 

--

56.2 ± 6.0

Atta colombica

Atcol1

26

332.1 ± 14.8

 

227.5 ± 10.5

 

66.5 ± 6.02

 

18.5 ± 4.6

--

Atta sexdens

Atsex1

27

390.0 ± 13.5

 

300.6 ± 11.6

 

35.7 ± 9.0

 

18.4 ± 6.3

40.1 ± 5.4

Atta cephalotes phalotes

Atcep1

28

300.1 ± 14.7

 

193.1 ± 13.06

 

30.1 ± 6.41

 

35.5 ± 4.9

50.1 ± 6.6

  1. One unit of relative proteolytic activity (U) corresponds to 1*10(-3) difference between treatment and control absorbance (A440, at t°C 26°C, 1 hour). The mean activity values are presented as U*103 ± SE.