Minerals in soil select distinct bacterial communities in their microhabitats

Jennifer Carson, L.E. Campbell, D. Rooney, N. Clipson, Deirdre Gleeson

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    We tested the hypothesis that different minerals in soil select distinct bacterial communities in their microhabitats. Mica (M), basalt (B) and rock phosphate (RP) were incubated separately in soil planted with Trifolium subterraneum, Lolium rigidum or left unplanted. After 70 days, the mineral and soil fractions were separated by sieving. Automated ribosomal intergenic spacer analysis was used to determine whether the bacterial community structure was affected by the mineral, fraction and plant treatments. Principal coordinate plots showed clustering of bacterial communities from different fraction and mineral treatments, but not from different plant treatments. Permutational multivariate anova (permanova) showed that the microhabitats of M, B and RP selected bacterial communities different from each other in unplanted and L. rigidum, and in T. subterraneum, bacterial communities from M and B differed (P
    Original languageEnglish
    Pages (from-to)381-388
    JournalFEMS Microbiology Ecology
    Issue number3
    Publication statusPublished - 2009


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