Betaine Modulates Rumen Archaeal Community and Functioning during Heat and Osmotic Stress Conditions In Vitro
Table 6
Community structure of ruminal archaea in solid phase as affected by incubation conditions and betaine supplementation in vitro.
Osmolality1
Temperature (°C)
Betaine2
value
Normal
Hyper
SE
39.5
42
SE
Control
Low
High
SE
3
3
3
Interaction4
Phyla
Crenarchaeota
0.001
0.001
0.0008
0.002
0.0008
0.001
0.002
0.001
0.98
0.10
0.26
Euryarchaeota
0.99
0.99
0.0007
0.991
0.993
0.0007
0.994
0.993
0.991
0.001
0.19
0.07
0.09
Genera
Vadin CA11
0.27
0.26
0.016
0.293
0.2426
0.0162
0.288
0.253
0.260
0.018
0.56
0.001
0.15
Methanosphaera
0.13
0.13
0.0308
0.115
0.159
0.030
0.119
0.0328
0.166
0.125
0.96
0.06
0.19
Methanosarcina
0.29
0.20
0.46
Methanobrevibacter
0.45
0.50
0.0208
0.494
0.463
0.0208
0.487
0.454
0.494
0.023
0.02
0.14
0.26
()
Methanobacterium
0.58
0.42
0.16
Methanimicrococcus
0.01
0.003
0.002
0.0045
0.011
0.0025
0.006
0.005
0.011
0.003
0.02
0.05
0.33
()
1;.2Betaine levels: control (0), low (51), and high (286) ppm. 3: osmolality; : temperature; : betaine. 4Only effects with significance () or tendency marked with bracket () are listed. Standard error. $ value is for testing the fixed effect of osmolality (), temperature (), and betaine addition (). Significance: .