HORIZONTAL TRANSFER OF BACTERIAL HEAVY-METAL RESISTANCE GENES AND ITSAPPLICATIONS IN ACTIVATED-SLUDGE SYSTEMS

Citation
Qh. Dong et al., HORIZONTAL TRANSFER OF BACTERIAL HEAVY-METAL RESISTANCE GENES AND ITSAPPLICATIONS IN ACTIVATED-SLUDGE SYSTEMS, Water science and technology, 37(4-5), 1998, pp. 465-468
Citations number
7
Categorie Soggetti
Water Resources","Environmental Sciences","Engineering, Civil
ISSN journal
02731223
Volume
37
Issue
4-5
Year of publication
1998
Pages
465 - 468
Database
ISI
SICI code
0273-1223(1998)37:4-5<465:HTOBHR>2.0.ZU;2-U
Abstract
The bacterial nickel (Ni) resistance determinant ncc-nre of Alcaligene s 31A strain cloned to an IncQ broad-host-range plasmid pKT240 gave ri se to pMOL222. The plasmid was subsequently mobilized into various Eub acteria and found to confer an increased Ni resistance on these recipi ents. An increase of Ni resistance was also observed after the transfe r of pMOL222 into activated sludge bacteria by plate mating. The disse mination of pMOL222 into an activated sludge pilot stabilized the syst em during a heavy metal shock loading with 0.25 mM Ni. (C) 1998 IAWQ. Published by Elsevier Science Ltd.