PMID- 22303679 OWN - NLM STAT- MEDLINE DCOM- 20130404 LR - 20161018 IS - 1001-9332 (Print) IS - 1001-9332 (Linking) VI - 22 IP - 11 DP - 2011 Nov TI - [Abundance of archaea, crenarchaea and bacteria in selected agricultural soils of China]. PG - 2996-3002 AB - Eukaryota, bacteria and archaea are the three domains of life. As the third domain of life, archaea has been found not only in extreme environments such as high-temperature, high-saline, and extremely acid habitats, but also in moderate environments including ocean, lake and soil, which implies that archaea may contribute greatly to various ecosystems. By targeting the 16S rRNA gene with real-time PCR approaches, this paper studied the abundance of archaea, crenarchaea and bacteria from two agricultural soil profiles and two long-term fertilization stations Qiyang (QY) and Fengqiu (FQ). The 16S rRNA gene copy number of crenarchaea was 1-2 orders of magnitude lower than that of archaea, and the order of these three groups was crenarchaea < archaea < bacteria. The ratios of both archaea and crenarchaea to bacteria increased with soil depth. The abundance of archaea and crenarchaea had significantly different responses to different fertilization treatments. In QY station, the copy numbers of archaeal and bacterial 16S rRNA gene had significant positive correlations with soil pH (r = 0.850, P < 0.01 and r = 0.676, P < 0.05, respectively); in FQ station, all the 16S rRNA gene copy numbers of archaea, crenarchaea and bacteria had no significant correlations with soil pH, but significantly correlated with soil organic matter (r = 0.783, P < 0.05; r = 0. 827, P < 0.05; r = 0.767, P < 0.05, respectively). To understand the distribution of archaea and crenarchaea in agricultural soil could provide important information to evaluate their ecological functions in soil ecosystem and element cycling. FAU - Shen, Ju-Pei AU - Shen JP AD - State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. jpshen@rcees.ac.cn FAU - Zhang, Li-Mei AU - Zhang LM FAU - He, Ju-Pei AU - He JP LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Ying Yong Sheng Tai Xue Bao JT - Ying yong sheng tai xue bao = The journal of applied ecology JID - 9425159 RN - 0 (RNA, Ribosomal, 16S) SB - IM MH - Archaea/genetics/*growth & development MH - Bacteria/genetics/*growth & development MH - China MH - Crenarchaeota/genetics/*growth & development MH - Crops, Agricultural/*growth & development MH - RNA, Ribosomal, 16S/analysis MH - Real-Time Polymerase Chain Reaction MH - *Soil Microbiology EDAT- 2012/02/07 06:00 MHDA- 2013/04/05 06:00 CRDT- 2012/02/07 06:00 PHST- 2012/02/07 06:00 [entrez] PHST- 2012/02/07 06:00 [pubmed] PHST- 2013/04/05 06:00 [medline] PST - ppublish SO - Ying Yong Sheng Tai Xue Bao. 2011 Nov;22(11):2996-3002.