[Lead uptake by plants inoculated with plant growth-promoting rhizobacteria in heavy metal-contaminated soil].
The effects of plant growth-promoting rhizobacteria of the genus Pseudomonas on the growth and elemental composition of barley plants were examined in pot experiments under artificial contamination of soil with water-soluble Pb compounds. Bacterial inoculation reduced Pb uptake by plants at the beginning and in the first half of the growing season due to the binding of the heavy metal in organic compounds and stable complexes in the rhizosphere soil without changes in the soil medium reaction. The bacterium P. fluorescens 21 had a maximum capacity for Pb immobilization and contributed to the minimum metal uptake into plants. Application of bacterium P. fluorescens 21 eliminated Pb toxicity and increased the plant weight to the level characteristic of the uncontaminated soil.
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Shabaev
D004787:Environmental Pollution; D001467:Hordeum / Q000187:drug effects / Q000382:microbiology*; D007854:Lead / Q000378:metabolism / Q000633:toxicity*; D019216:Metals, Heavy / Q000378:metabolism / Q000633:toxicity; D011549:Pseudomonas / Q000254:growth & development / Q000378:metabolism*; D058441:Rhizosphere; D012989:Soil Pollutants / Q000378:metabolism / Q000633:toxicity
D019216:Metals, Heavy; D012989:Soil Pollutants; D007854:Lead