Effects of Rhizobacteria on the Growth and Uptake of Lead by Wheat (Tritium aestivum L.)
Year: 2014
Type: article
Abstract: This study was conducted to evaluate the effects of bacteria and ethylene diamine tetraacetic acid (EDTA) on the growth and lead (Pb) accumulation of wheat (Triticum aestivum, L.) grown in sterile and non-sterile soils. Wheat seeds were inoculated with two strains of commercial bacteria; Pseudomonas monteilii (B1) and Wautersia metallidurans (B2). Inoculated seeds were planted in plastic tubes containing sterile or non-sterile soil mixture consisting of topsoil and peat (2:1, v: v) that had been spiked with various amounts (0, 500, 1000, 2000 mg Pb/Kg dry soil) of lead nitrate. The plants were allowed to grow for six weeks in a naturally lit greenhouse. Our results showed that there were higher Pb concentrations in shoots of plants treated with EDTA + B1 and EDTA + B2 that were grown in non-sterile soils as compared to treatments in sterile soils. These results indicated that EDTA + bacteria may have synergized to mobilize Pb in the soil for plant uptake and translocation. In general, EDTA, bacteria, and a combination of both, increased the shoot and root Pb uptake and dry biomass in wheat.
Source: World environment
Institution: Jackson State University
Language: English
Topic: Heavy metals in environment
Subfield: Pollution
Field: Environmental Science
Domain: Physical Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W390241290