ISSN:
1573-0972
Schlagwort(e):
Mercury reductase
;
nitrogen-fixing soil bacteria
;
organomercurial lyase
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
Abstract Beijerinckia mobilis KDr2, a broad-spectrum, mercury-resistant nitrogen-fixing organism, possesses multiple metal-resistance properties. Mercuric reductase and organomercurial lyase activities of this bacterial strain were determined using different mercury compounds and heavy metal salts of copper, nickel, cobalt, cadmium, silver, zinc, lead and arsenate as inducers and substrates. Mercuric reductase was partially purified and the effect of some enzyme inhibitors and heavy metal ions on the enzyme activity was studied. The enzyme activity was completely inhibited by CdCl2, Bi(NO3)3 and KCN at 10-5 M and by AgNO3, CoCl2 and CuSO4 at 10-4 M.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00327833
Permalink