PMID- 9606906 OWN - NLM STAT- MEDLINE DCOM- 19980623 LR - 20061115 IS - 0008-4166 (Print) IS - 0008-4166 (Linking) VI - 44 IP - 3 DP - 1998 Mar TI - Functional and structural successions in arbitrary samples of heterotrophic bacteria during aerobic treatments of lignite-carbonization wastewater in in situ enclosures. PG - 211-20 AB - In situ mesocosm experiments were performed in Lake Schwelvollert (located in the district of Weissenfels, Saxony-Anhalt, Germany), an anaerobic lignite-carbonization effluent lake containing phenolic compounds and their autoxidation products (anthropogenic humic matter). In the aeration enclosure, the anaerobic Schwelvollert wastewater was aerated and in the flocculation enclosure, it was flocculated to precipitate the oxygen-trapping anthropogenic humic matter to enhance the input of oxygen by diffusion. To gain an insight into the metabolic state of the aerobic heterotrophic microbiota during the treatments, arbitrary samples of bacterial isolates were taken from a general agar medium and tested for their abilities to cleave predominant phenolic contaminants by a procedure called the isolate sample assay. In this way, successions of degradation potentials were observed in both mesocosms, with degradation abilities for meta- and para-alkylated phenols appearing before degradation abilities for ortho-substituted phenols as a common phenomenon. To examine the structure of samples, the respective isolates were characterized using the Biolog GN MicroPlate system, the random amplified polymorphic DNA nucleic acid (RAPD) fingerprinting technique, and amplified ribosomal DNA restriction analysis (ARDRA). Although similar functional patterns occurred in both mesocosms, the compositions and diversities of the respective bacterial communities varied significantly, even at different depths from the same enclosure, with members of the Pseudomonas RNA group I being predominant. FAU - Becker, P M AU - Becker PM AD - Department of Remediation Research, UFZ Centre for Environmental Research Leipzig-Halle, Germany. becker@san.ufz.de FAU - Wand, H AU - Wand H FAU - Martius, G G AU - Martius GG FAU - Weissbrodt, E AU - Weissbrodt E FAU - Stottmeister, U AU - Stottmeister U LA - eng PT - Journal Article PL - Canada TA - Can J Microbiol JT - Canadian journal of microbiology JID - 0372707 RN - 0 (Industrial Waste) RN - 0 (Phenols) SB - IM MH - Aerobiosis MH - Bacteria, Aerobic/classification/genetics/isolation & purification/*physiology MH - Biodegradation, Environmental MH - Cluster Analysis MH - Colony Count, Microbial MH - DNA Fingerprinting MH - Ecosystem MH - *Industrial Waste MH - Phenols/*metabolism MH - Pseudomonas/genetics/isolation & purification/physiology MH - Random Amplified Polymorphic DNA Technique MH - *Water Microbiology MH - *Water Pollution, Chemical EDAT- 1998/06/02 00:00 MHDA- 1998/06/02 00:01 CRDT- 1998/06/02 00:00 PHST- 1998/06/02 00:00 [pubmed] PHST- 1998/06/02 00:01 [medline] PHST- 1998/06/02 00:00 [entrez] PST - ppublish SO - Can J Microbiol. 1998 Mar;44(3):211-20.