Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2003.264.268Eichornia crassipes in Conjunction with Bacterial
Strains]]>FaisalMuhammad Shahida Hasnain 3200363Two chromium resistant bacterial strains i.e. Bacillus sp. S6 and Staphylococcus sp.
CrM-3 were used in conjunction with Eichornia crassipes to study the effect of chromate
removal from chromium contaminated waste waters. Bacterial strains resulted in reduced
uptake of chromate into inoculated plants, which was 17.24 and 11.29% with S6 and
CrM-3 respectively, at an initial Cr (VI) concentration of 100 μg ml‾1 as compared to
non-inoculated control plants. Different heavy metals (CuSO4, NiSO4, MnCl2 and Pb
(NO3) 2) at a concentration of 100 μg ml‾1 were added in chromate-supplemented
solution to check their effects on chromate uptake by the plants. At different chromate
concentrations the uptake of Cr (VI) into the plants was 28.73, 5.38, 7.15, 12.29 and
15.35% less at an initial Cr (VI) concentration of 100, 300, 500, 1000 and 2000 μg ml‾1
in comparison to metal free condition. Cr (VI) uptake by the Eichornia crassipes was
occurred at different pH tested, but maximum uptake was observed at pH 5. Nevertheless
the bacterial strains caused some decrease in chromate uptake into the plants but the
combined effect of plants and bacterial strains conduce more removal of Cr (VI) from the
solution.]]>Cunningham, S.D., T.A. Anderson, P. Schwab and F.C. Hsu,19965655114Ewis, A.A., K. Kondo, J. Lee, M. Tsuyuguchi and M. Hashimoto et al.,2001409297Ganguli, A. and A.K. Tripathi,2002Pseudomonas aeruginosa A2Chr in two bioreactors.]]>58416420Gerhardt, P., R.G.E. Murry, W.A. Wood and N.R. Kreig,2000Gibb, H.J., S.J.P. Lees, P.F. Pinsky and B.C. Rooney,200038127131O`Brien, T., J. Xu and S.R. Patierno,2001222173182Proctor, D.M., J.M. Otani, B.L. Finley, D.J. Paustenbach, J.A. Bland, N. Speizer and E.V. Sargent,200265701746Puzon, G.J., J.N. Petersen, A.G. Roberts, D.M. Kramer and L. Xun,2002+ complex.]]>2947681Simon, L., I. SzegvAri and J. Prokisch,200123313316Srivastava, S., S. Prakash and M.M. Srivastava,199912201207Zhang, Z., S.S. Leonard, S. Wang, V. Vallyathan, V. Castranova and X. Shi,20011/27783Humphries, E.C.,19561956Hewitt, E.J.,19631963pp: 99-137pp: 99-137Cabrera, J., S. Burkhardt, D.X. Tan, L.C. Manchester, M. Karbownik and R.J. Reiter,200189225230Rossi, G., S. Bellicioni, B. Felici and A. Figlolia,19991999