Table 3 Correlations (r) between ammonia oxidation rates and Thaumarchaeota gene or transcript abundance, measured in Antarctic coastal waters

From: Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters

Sample subset

n

rrs genes

amoA genes

amoA transcripts

Ratio of amoA mRNA:DNA

All winter

18

+0.25

−0.009

+0.41

+0.40

 UAASW

6

+0.24

−0.30

−0.38

+0.30

 LAASW

6

+0.099

−0.14

+0.082

+0.17

 CDW

6

−0.15

+0.21

+0.56

+0.44

All summer

47

+0.45***

+0.36*

+0.025

−0.16

 WW

25

+0.52**

+0.57**

+0.33

−0.13

 CDW

22

+0.33

+0.23

−0.11

−0.21

  1. Abbreviations: CDW, circumpolar deep water; LAASW, lower Antarctic surface water; UAASW, upper Antarctic surface water; WW, winter water.
  2. Statistically significant correlations are indicated as follows: ***P<0.001, **P<0.01 and *P<0.05.
Back to article page