| revealing biogenic sulfuric acid corrosion in sludge digesters: detection of sulfur-oxidizing bacteria within full-scale digesters. | biogenic sulfuric acid corrosion (bsa) is a costly problem affecting both sewerage infrastructure and sludge handling facilities such as digesters. the aim of this study was to verify bsa in full-scale digesters by identifying the microorganisms involved in the concrete corrosion process, that is, sulfate-reducing (srb) and sulfur-oxidizing bacteria (sob). to investigate the srb and sob communities, digester sludge and biofilm samples were collected. srb diversity within digester sludge was stud ... | 2014 | 25353947 |
| paracoccus koreensis sp. nov., isolated from anaerobic granules in an upflow anaerobic sludge blanket (uasb) reactor. | a gram-negative, short rod- to coccus-shaped, non-spore-forming bacterium (ch05(t)) was isolated from granules in an upflow anaerobic sludge blanket (uasb) reactor. on the basis of 16s rrna gene sequence similarity, strain ch05(t) was shown to belong to the subclass alpha-proteobacteria, being related to paracoccus solventivorans (97.5%), paracoccus alkenifer (96.9%) and paracoccus kocurii (96.4%). the phylogenetic distance from paracoccus species with validly published names was always less tha ... | 2005 | 16014497 |
| identification and distribution of insertion sequences of paracoccus solventivorans. | three novel insertion sequences (iss) (ispso1, ispso2, and ispso3) of the soil bacterium paracoccus solventivorans dsm 11592 were identified by transposition into entrapment vector pmec1. ispso1 (1,400 bp) carries one large open reading frame (orf) encoding a putative basic protein (with a dde motif conserved among transposases [tnps] of elements belonging to the is256 family) with the highest levels of similarity with the hypothetical tnps of rhodospirillum rubrum and sphingopyxis macrogoltabid ... | 2003 | 14660342 |
| identification of bacterial isolates from biofilters as paracoccus alkenifer sp. nov. and paracoccus solventivorans with emended description of paracoccus solventivorans. | two groups of strains isolated from biofilters for the treatment of waste gases were assigned to the genus paracoccus by phylogenetic and chemotaxonomic methods. all type strains of the genus paracoccus were compared with these groups using 16s rdna sequence analysis, fatty acid patterns and physiological reaction profiles. for both groups, the nearest related reference species was paracoccus solventivorans based on 16s rdna sequence similarity. however, whereas one group of isolates was identif ... | 1998 | 9731294 |
| isolation and characterization of a new gram-negative, acetone-degrading, nitrate-reducing bacterium from soil, paracoccus solventivorans sp. nov. | an acetone-degrading, nitrate-reducing, coccoid to rod-shaped bacterium, strain l1, was isolated from soil on the site of a natural gas company. cells of the logarithmic growth phase reacted gram positive, while those of the stationary growth phase were gram negative. single organisms were 0.4 to 0.5 by 0.9 to 1.5 microns in size, nonmotile, and non-spore forming and had poly-beta-hydroxybutyrate inclusions. the doubling time of strain l1 on acetone-co2-nitrate at the optimal ph of 7 to 8 and th ... | 1996 | 8863446 |
| paracoccus chinensis sp. nov., isolated from sediment of a reservoir. | a gram-negative, short ovoid- to coccus-shaped, aerobic, motile, non-spore-forming bacterium (designated strain ks-11(t)) was isolated from sediment of the eutrophic guanting reservoir in beijing, china. colonies grown on r2a agar plates were circular, convex and colourless to orange. the strain grew in the presence of up to 1 % nacl (optimum, 0 % nacl). growth occurred at 25-40 degrees c (optimum, 28-37 degrees c) and at ph 6.0-9.5 (optimum, ph 7.5-9.0). on the basis of 16s rrna gene sequence s ... | 2009 | 19625438 |