title: Presence of Nitrosospira cluster 2 bacteria corresponds to N transformation rates in nine acid Scots pine forest soils.
abstract: The relation between environmental factors and the presence of ammonia-oxidising bacteria (AOB), and its consequences for the N transformation rates were investigated in nine Scots pine (Pinus sylvestris L.) forest soils. In general, the diversity in AOB appears to be strikingly low compared to other ecosystems. Nitrosospira cluster 2, as determined by temporal temperature gradient electrophoresis and sequencing, was the only sequence cluster detected in the five soils with high nitrification rates. In the four soils with low nitrification rates, AOB-like sequences could not be detected. Differences in nitrification rates between the forest soils correlated to soil C/N ratio (or total N) and atmospheric N deposition.
authors.affiliation: Institute of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands. rully.nugroho@ecology.falw.vu.nl
authors.forename: R A
authors.initials: RA
authors.lastname: Nugroho
authors.forename: W F M
authors.initials: WF
authors.lastname: Röling
authors.forename: A M
authors.initials: AM
authors.lastname: Laverman
authors.forename: H R
authors.initials: HR
authors.lastname: Zoomer
authors.forename: H A
authors.initials: HA
authors.lastname: Verhoef
mesh_terms: D000641:Ammonia / Q000378:metabolism; D020562:Betaproteobacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D002118:Calcium / Q000032:analysis; D002244:Carbon / Q000032:analysis; D004269:DNA, Bacterial / Q000235:genetics / Q000302:isolation & purification; D005387:Finland; D009426:Netherlands; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism*; D041605:Pinus sylvestris; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012987:Soil / Q000032:analysis; D012988:Soil Microbiology; D014197:Trees
chemical_list: D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012987:Soil; D002244:Carbon; D000641:Ammonia; D009584:Nitrogen; D002118:Calcium