Table 3.

Linear correlations between LH-PCR fragments and FAME peaks

Fatty acidaCorrelation with the following LH-PCR fragmentsbMicrobial groupc
313 bp322 bp323 bp326 bp328 bp330 bp332 bp333 bp335 bp339 bp342 bp343 bp345 bp346 bp348 bp352 bp354 bp357 bp361 bp
i14:00.66
14:00.670.70−0.72
i15:00.640.640.810.82−0.71−0.790.75−0.73Gram-positive bacteria
15:00.720.660.650.750.750.77−0.680.80−0.79Bacteria
16:0 N alcohol−0.730.74
i16:00.700.660.690.710.830.710.74−0.710.79−0.78Gram-positive bacteria
16:1ω5c −0.80−0.670.69Arbuscular mycorrhizal fungi
16:00.710.660.730.810.810.92−0.87−0.710.83−0.83
10 Me 16:00.700.680.720.650.740.840.840.83−0.78−0.740.82−0.82Actinomycetes
i17:00.750.660.700.640.740.840.760.84−0.80−0.650.81−0.77Gram-positive bacteria
17:0cy0.770.850.700.62−0.800.81−0.84Anaerobic bacteria
17:00.640.700.73Bacteria
16:1ω2OH0.710.670.700.780.860.720.88−0.810.79−0.77
10 Me 17:00.700.680.690.790.780.810.770.64−0.680.78−0.81Actinomycetes
18:2ω6,9c −0.650.67−0.910.810.75−0.79−0.72Fungi
18:1ω9c 0.71−0.850.730.71−0.70−0.80Fungi
18:1ω7c/ω9t/12t −0.68−0.74−0.87−0.65−0.78−0.660.90
18:00.680.63−0.67−0.70
19:0cyω10c/un−0.660.80−0.79Anaerobic bacteria
19:0cyω8c 0.66Anaerobic bacteria
20:1ω9c −0.76
20:00.73−0.65−0.690.80
  • a The standard FAME nomenclature was used. Carbon numbering begins at the aliphatic (ω) end of the fatty acid molecule. The number of double bonds in a molecule is indicated after the colon. A shill separates fatty acids that coeluted under the conditions used. Abbreviations: c, cis;t, trans; Me, methyl; OH, hydroxy; cy, cyclopropane; i, iso; un, unknown.

  • b Only correlation values greater than 0.623 in absolute value (P = 0.01) are shown.

  • c Microbial groups were based on fatty acid association data (5, 12, 30).