title: Quantitative immunologic analysis of the methanogenic flora of digestors reveals a considerable diversity.
abstract: To determine which methanogens occur in digestors, we performed a quantitative immunologic analysis of a variety of samples. A comprehensive panel of calibrated polyclonal antibody probes of predefined specificity spectra was used. This allowed precise identification of bacteria by antigenic fingerprinting. A considerable diversity of methanogens was uncovered, much larger than previously reported, encompassing at least 14 strains of 11 species. Strategies were developed to measure the load of any given methanogen in a sample and to compare samples quantitatively. Two methanogens were found to predominate which were antigenically closely related with either Methanobacterium formicicum MF or Methanobrevibacter arboriphilus AZ. Fundamental data, probes, and methods are now available to monitor methanogenic subpopulations during digestor operation and thus learn about their respective roles and predictive significance.
authors.affiliation: Wadsworth Center for Laboratories and Research, New York State Department of Health, and School of Public Health, State University of New York, Albany, New York 12201.
authors.forename: A J
authors.initials: AJ
authors.lastname: Macario
authors.forename: E
authors.initials: E
authors.lastname: Conway de Macario
mesh_terms: D019844:Antibodies, Archaeal / Q000378:metabolism*; D019845:Antigens, Archaeal / Q000032:analysis; D044822:Biodiversity; D019149:Bioreactors / Q000382:microbiology*; D019605:Euryarchaeota / Q000145:classification* / Q000276:immunology* / Q000302:isolation & purification; D017014:Methanobacterium / Q000302:isolation & purification / Q000502:physiology; D041581:Methanobrevibacter / Q000302:isolation & purification / Q000502:physiology; D012037:Refuse Disposal / Q000379:methods; D013045:Species Specificity
chemical_list: D019844:Antibodies, Archaeal; D019845:Antigens, Archaeal