title: Phosphate uptake performance of bacteria isolated from a full-scale Izmir municipal wastewater treatment plant.
abstract: This study investigated the phosphate uptake capacities of bacteria isolated from aerobic and anaerobic phosphate removal tanks at a municipal wastewater treatment plant in Izmir, Turkey, removing chemical oxygen demand to nitrogen (COD-N) and phosphorus (P) on a full-scale basis. Conventional plating techniques and an enrichment culture method were used to isolate the colonies, with a total of 91 monoculture isolates from the sludge samples being subjected to phosphate uptake studies. A total of 64 of these isolates had high phosphate uptake capacities ranging from 3.7 x 10(10) to 1.0 x 10(-12) mg PO4(3-) cell(-1), and only 11 of the strains with high phosphate uptake were Gram-negative. The highest phosphorus uptake value was 3.7 x 10(-10) mg PO4(-3) cell(-1), which was achieved by Gram-positive bacteria. Gram-negative strains were identified as Acinetobacter baumannii with a 99% probability and as Pseudomonas aeruginosa with a 96-98% probability (API 20 NE).
authors.affiliation: Graduate School of Natural and Applied Sciences, Ege University, Bornova-Izmir, Turkey.
authors.forename: P
authors.initials: P
authors.lastname: Paşayeva
authors.forename: Y
authors.initials: Y
authors.lastname: Gezgin
authors.forename: G
authors.initials: G
authors.lastname: Pekin
authors.forename: R
authors.initials: R
authors.lastname: Eltem
mesh_terms: D015169:Colony Count, Microbial; D006090:Gram-Negative Bacteria / Q000302:isolation & purification / Q000378:metabolism*; D006094:Gram-Positive Bacteria / Q000302:isolation & purification / Q000378:metabolism*; D010710:Phosphates / Q000378:metabolism*; D012722:Sewage / Q000382:microbiology*; D014421:Turkey; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D010710:Phosphates; D012722:Sewage; D014874:Water Pollutants, Chemical