Table 5.

Bacteria species with intracellular Pb accumulation: precipitation or metallothionein binding

Isolation source	Pb (II) media	Phyluma	Species	Precipitate/Metallo-thionein gene	Reference
Precipitation
Coast	Pb(CH3COO)2 100ppm	Actinobacteria Firmicutes	Brevibacterium iodinum Bacillus pumilus	PbS	De et al., 2008
Sewage treatment plant	Pb(NO3)2 300 mg/L	Firmicutes	Desulfotomaculum sp.	PbS	Gong et al., 2007
-	Pb(NO3)2 2.5 mM	Gammaproteobacteria	Vibrio harveyi	Pb(PO4)6	Mire et al., 2004
Sewage treatment wetland	Pb(NO3)2 0.1mM	Gammaproteobacteria Firmicutes Actinobacteria	Pseudomonas aeruginosa Bacillus amyloliquefaciens Bacillus subtilis subsp. subtilis Microbacterium luteolum	Lead nano-particles (mineral not identified)	Chowdhury et al., 2008; 2011
Leather workshop	Pb(NO3)2	Gammaproteobacteria	Enterobacter sp.	PbO	El-Shanshoury et al., 2012
Industrial waste water	Pb(NO3)2	Firmicutes	Bacillus anthracis	PbS	El-Shanshoury et al., 2012
-	Pb(NO3)2 6 mM	Gammaproteobacteria	Escherichia coli	Lead particles	Essa et al., 2017
-	Pb(NO3)2 4 mM	Firmicutes	Staphylococcus aureus	Lead particles	Essa et al., 2018
Sludge	Pb(NO3)2	Gammaproteobacteria	Escherichia coli	PbS & PbCO3	Essa et al., 2018
Metal mine	PbCl2 100 mM	Gammaproteobacteria	Enterobacter cloacae	PbCO3	Kang et al., 2015
Oil field injection water	Pb(NO3)2 150 mg/L	Proteobacteria, alpha	Rhodobacter sphaeroides	PbS & PbSO4	Li et al., 2016
Metal mine soil	Pb(NO3)2 0.1 mM	Firmicutes	Bacillus megaterium	Mineral unidentified	Roane, 1998
Battery waste	Pb(NO3)2 3.0 mM	Gammaproteobacteria	Providencia vermicola	PbSO3	Sharma et al., 2017
Metallothionein (intracellular accumulation)
Soil, car battery waste	Pb(NO3)2 0.2-0.4 mM	Gammaproteobacteria Gammaproteobacteria	Salmonella enterica (formerly Salmonella choleraesuis) Proteus penneri	smtAB	Naik et al., 2018
Estuary	Pb(NO3)2 0.6 mM	Gammaproteobacteria	Pseudomonas sp.	bmtA	Naik et al., 2012
Industrial effluent	Pb(NO3)2 0-500 mg/L	Firmicutes	Bacillus cereus		Murthy et al., 2011

^aProteobacteria are listed by class if available