Generalized soil Thaumarchaeota community in weathering rock and saprolite.

摘要: Relatively little is known of the archaeal communities associated with endolithic environments, compared to other microbial groups such as bacteria and fungi. Analyzing pyrosequenced 16S ribosomal RNA (rRNA) gene V1–V3 region, we investigated community aboveground-exfoliated weathering layers a granite gneiss, saprolite derived from this rock at 1 m depth below soil surface, in forested hilly area south Seoul, South Korea. In both these sites, an dominated by phylum Thaumarchaeota was identified. The all cases closely resembled that surface layer acidic soils temperate climates It appears there no clear distinction composition between despite tremendous difference concentration total nitrogen organic carbon. Of chemical properties measured, pH best predictor relative abundance thaumarchaeal subphyla. These findings reinforce view archaea are mostly generalists, whose ecology not dependent on or matter status, presence living roots, abundant any biota.