Metagenomic and small-subunit rRNA analyses reveal the genetic diversity of bacteria, archaea, fungi, and viruses in soil

Article Abstract:

Metagenomic and small-subunit RNA-based sequence analysis methods are used for comparing the estimated richness and evenness of bacteria, archaea, fungi and viruses in prairie, desert and rainforest soils. The results have shown minimal taxonomic overlap between sites for these four microbial groups, suggesting that soil archaea, bacteria, fungi and viruses are globally as well as locally diverse.

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Seasonal changes in an alpine soil bacterial community in the Colorado Rocky Mountains

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Clone libraries of 16S ribosomal DNA from alpine soil collected in winter, spring and summer are constructed. Also, bacteria are cultivated from the alpine soil and the seasonal abundance of selected cultured isolates is measured in hybridation experiments.

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Phylogeny and characterization of three nifH-homologous genes from Paenibacillus azotofixans

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Research has been conducted on Paenibacillus azotofixans DNA regions which contain genes responsible for nitrogen fixation. The authors describe the cloning and characterization of these regions, and report the results.

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