Table 2.

Diversity statistics calculated from TRF profiles of 16S rDNAs amplified from C0, C1, S0, and S1 soil DNA

EnzymeIndexDiversity statisticsa
C0C1S0S1
HaeIIISb21191814d
HhaIS14131211
MspIS33272434
RsaIS20222020
Avg S22201920
HaeIIIHc4.133.923.743.49
HhaIH3.683.523.513.32
MspIH4.784.484.194.72
RsaIH3.713.743.773.72
AvgH4.073.913.803.81
  • a C0, Cosnino interspace; C1, Cosnino rhizosphere; S0, Sunset Crater interspace; S1, Sunset Crater rhizosphere.

  • b Phylotype richness, S, was calculated as the total number of distinct TRF sizes (between 94 and 827 bp) in a profile.

  • c Shannon-Weiner diversity index (19) was calculated as follows: H = −Σ(pi)(log2pi), where p is the proportion of an individual peak height relative to the sum of all peak heights.

  • d Boldface type indicates the lowest value in each series.