Table 2.

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

EnzymeIndexDiversity statisticsa
C0C1S0S1
HaeIII Sb 211918 14 d
HhaI S 141312 11
MspI S 3327 24 34
RsaI S 20 22 20 20
Avg S 2220 19 20
HaeIII Hc 4.133.923.74 3.49
HhaI H 3.683.523.51 3.32
MspI H 4.784.48 4.19 4.72
RsaI H 3.71 3.743.773.72
AvgH 4.073.91 3.80 3.81
  • 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 )(log2 pi ), 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.