Key words: Arsenate
reducing bacteria, Klebsiella oxytoca, Citrobacter freundii, Bacillus anthracis, bioremediation.
1972) described the zinc arsenate
from Aghbar as dark yellow-green crusts and pale yellow spherules in quartz and dolomite cavities.
Moreover, the presence of arsenate
induced the increase in Zn(II) adsorption.
The arsC gene reduces arsenate
to a more toxic compound called arsenite, but only in leaves.
When detectable PMM activity was determined in the presence of arsenate
, partial inhibition was also observed.
ion can exchange with the phosphate group in bezoar brushite, and thus be effectively removed from solution.
Specific analytical methods exist for well-known poisons such as cyanide, and elemental techniques can be used for metallic anions such as arsenate
(Moffat 1986; Tanaka et al.
Additional substances rejected by the National Organic Standards Board but permissible according to the USDA rule are strychnine, potassium nitrate, piperonyl butoxide, copper-chromium arsenate
, and the crop antibiotic avermectin.
1993) and Silene vulgaris by Schat and Ten Bookum (1992a) and for arsenate
tolerance in Holcus lanatus by Macnair et al.
DDT displaced the more toxic and persistent lead arsenate
The most common of the waterborne preservatives is chromated copper arsenate
inorganic arsenicals and other water-borne preservatives such as chromated copper arsenate
(CCA) and ammoniacal copper arsenate
(ACA) are toxic to wood destroying fungi and insects, but leave a relatively clean and paintable surface and little or no odor.