EFFECT OF BACTERIA ON GROWTH AND DEVELOPMENT OF WHEAT IN SOILS CONTAMINATED WITH Cu AND Pb CATIONS

Sadullaeva M.S.; Тurgunova L.S.; Kadirova G.Kh.; Shonakhunov T.E., Turakulova  D.E.

doi:10.5281/zenodo.10242131

EFFECT OF BACTERIA ON GROWTH AND DEVELOPMENT OF WHEAT IN SOILS CONTAMINATED WITH Cu AND Pb CATIONS

01.12.2023 International Scientific Journal "Science and Innovation". Series D. Volume 2 Issue 11

Sadullaeva M.S., Тurgunova L.S., Kadirova G.Kh., Shonakhunov T.E., Turakulova D.E.

Abstract. This study demonstrates the impact of microorganisms, including bacterial strains Bacillus pumilus, Bacillus atropheus, Bacillus licheniformis, Enterobacter ludwigii 11, Enterobacter cloacea 5 and their associations B. pumilus+B. licheniformis+B. atropheus; E. ludwigii+E. cloacea+B. pumilus on the growth and development of wheat under conditions of soil contamination with copper and lead ions. Exposure to heavy metals as plant growth parameters was determined by the length of their stems and roots, as well as dry and wet biomass compared to the control. It was found that when using a bacterial consortium consisting of three resistant strains, plant growth performance was significantly improved compared to the result obtained when using a single strain. In particular, in soil samples containing Cu cation at a concentration of 118 mg/kg of soil, it was observed that the length of the stem and root of the plant treated with the consortium of bacteria Enterobacter ludwigii 11+Enterobacter cloacae 5+Bacillus pumilis used in the experiments stimulated by 46.6% and 53.8%, respectively, compared to the control group. Based on the results obtained, it was shown that the studied bacteria have a synergistic potential in providing bioremediation of soils contaminated with Cu2+ and Pb2+ and stimulating plant growth.

Keywords: bacteria, Cu (II), Pb(II), heavy metal, soil, bioremediation, plant, root, stem

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