Open AccessDistribution and diversity of archaeal communities in selected C hinese soils
Author(s) -
Cao Peng,
Zhang LiMei,
Shen JuPei,
Zheng YuanMing,
Di Hong J.,
He JiZheng
Publication year - 2012
Publication title -
fems microbiology ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.377
H-Index - 155
eISSN - 1574-6941
pISSN - 0168-6496
DOI - 10.1111/j.1574-6941.2011.01280.x
Subject(s) - crenarchaeota , archaea , biology , soil water , euryarchaeota , abundance (ecology) , relative species abundance , ecology , botany , bacteria , genetics
To understand the distribution and diversity of archaea in C hinese soils, the archaeal communities in a series of topsoils and soil profiles were investigated using quantitative PCR , T ‐ RFLP combining sequencing methods. Archaeal 16 S r RNA gene copy numbers, ranging from 4.96 × 10 6 to 1.30 × 10 8 copies g −1 dry soil, were positively correlated with soil pH , organic carbon and total nitrogen in the topsoils. In the soil profiles, archaeal abundance was positively correlated with soil pH but negatively with depth profile. The relative abundance of archaea in the prokaryotes (sum of bacteria and archaea) ranged from 0.20% to 9.26% and tended to increase along the depth profile. T ‐ RFLP and phylogenetic analyses revealed that the structure of archaeal communities in cinnamon soils, brown soils, and fluvo‐aquic soils was similar and dominated by C renarchaeota group 1.1b and 1.1a. These were different from those in red soils, which were dominated by C renarchaeota group 1.3 and 1.1c. Canonical correspondence analysis indicated that the archaeal community was primarily influenced by soil pH .