TY  - JOUR
AU  - Ollivier, Julien
AU  - Schacht, Daniela
AU  - Kindler, Reimo
AU  - Groeneweg, Joost
AU  - Engel, Marion
AU  - Wilke, Berndt-Michael
AU  - Kleineidam, Kristina
AU  - Schloter, Michael
TI  - Effects of repeated application of sulfadiazine-contaminated pig manure on the abundance and diversity of ammonia and nitrite oxidizers in the root-rhizosphere complex of pasture plants under field conditions
JO  - Frontiers in microbiology
VL  - 4
IS  - 22
SN  - 1664-302X
CY  - Lausanne
PB  - Frontiers Media
M1  - FZJ-2013-03227
SP  - 1-14
PY  - 2013
AB  - In a field experiment, the impact of repeated application of the antibiotic sulfadiazine (SDZ)-contaminated pig manure was assessed on functional microbial communities involved in ammonia and nitrite oxidation in the root-rhizosphere complexes (RRCs) of diverse plants composing a pasture. We surveyed the abundance of ammonia-oxidizing archaea (AOA) and bacteria (AOB) as well as Nitrobacter- and Nitrospira-like nitrite-oxidizing bacteria (NOB) by quantitative PCR (qPCR), and the diversity of amoA AOA and Nitrobacter-like nxrA amplicons using a cloning-sequencing approach. Whereas the first SDZ-contaminated manure application caused only slight effects on the investigated microbial communities and did not change the diversity and abundance pattern significantly, the second application of SDZ-contaminated manure induced an up to 15-fold increased ratio of AOA:AOB and a reduction of nrxA genes. The diversity of AOA amoA increased after the second application of SDZ-contaminated manure compared to the control treatment whereas a clear reduction of nrxA OTUs was visible in the same samples. The results indicate that the application of SDZ may principally affect nitrite oxidation by NOB and alternative pathways like nitrite reduction might be favored under these conditions.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000330963300002
C6  - pmid:23420031
DO  - DOI:10.3389/fmicb.2013.00022
UR  - https://juser.fz-juelich.de/record/135273
ER  -