Gi. Paton et al., DEVELOPMENT OF AN ACUTE AND CHRONIC ECOTOXICITY ASSAY USING LUX-MARKED RHIZOBIUM-LEGUMINOSARUM BIOVAR TRIFOLII, Letters in applied microbiology, 24(4), 1997, pp. 296-300
A soil isolate of Rhizobium leguminosarum bv. trifolii was marked with
a lux CDABE gene cassette to enable the expression of bioluminescence
. The suitability of the bacterium as a soil pollution biosensor was a
ssessed using acute and chronic assays. Bacterial bioluminescence resp
onded sensitively to the metals studied, The order of sensitivity was
found to be Cd > Ni = Zn > Cu for the acute test and Cd > Ni = Zn = Cu
for the chronic test. The sensitive response of the biosensor highlig
hted its potential for use as an indicator of soil pollution.