caa a22 4500 606219781 CHVBK 20210128101120.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s11104-014-2270-y doi (NATIONALLICENCE)springer-10.1007/s11104-014-2270-y Seleniferous soils as a source for production of selenium-enriched foods and potential of bacteria to enhance plant selenium uptake [Elektronische Daten] [Muhammad Yasin, Ali El Mehdawi, Courtney Jahn, Aneela Anwar, Marie Turner, Muhammad Faisal, Elizabeth Pilon-Smits] Aims: Selenium (Se) is an essential micronutrient for animals and humans but toxic at high levels. Soil Se concentration is highly variable. Selenium toxicity occurs in areas with seleniferous soils, while Se deficiency is prevalent in low-Se areas. Selenium-accumulating crop plants may be used to extract Se from seleniferous soils and provide dietary Se in low-Se areas. Methods: In this study, Se accumulator, Brassica juncea (Indian mustard), was tested for its capacity to extract Se from naturally seleniferous soil (~8mg Se kg-1 of soil) collected from west Fort Collins, CO, USA. Two Se-tolerant bacterial consortia (G1 and G2, 4-5 bacterial strains in each) were tested for their effects on plant growth and Se accumulation. Results: B. juncea accumulated Se to 711mgkg-1 dry weight (DW) in leaves, 276mgkg-1 DW in pod husk and 358mgkg-1 DW in seeds. Plants inoculated with consortium G1 showed significantly increased growth (dry biomass, seed weight) compared to control plants and G2-inoculated plants. G2-Inoculated plants showed reduced photosynthesis and stomatal conductance compared to control plants and G1-inoculated plants, as well as reduced Se accumulation in leaf and seed tissues. Sulfur levels were not affected by inoculation. Non-protein thiol levels were significantly elevated in G2-inoculated plants. Conclusions: In conclusion, B. juncea may be used to extract Se from seleniferous soil for the production of Se-enriched plant material, and inoculation with bacterial consortium G1 further enhances the efficiency of this process by stimulating plant growth. Springer International Publishing Switzerland, 2014 Selenium nationallicence Indian mustard nationallicence ICP nationallicence Non-protein thiols nationallicence Photosynthesis nationallicence Inoculation nationallicence Yasin Muhammad Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut El Mehdawi Ali Department of Biology, Colorado State University, 80523-1878, Fort Collins, CO, USA aut Jahn Courtney Department of Bioagricultural Sciences and Pest Management, Colorado State University, 80523-1177, Fort Collins, CO, USA aut Anwar Aneela Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut Turner Marie Department of Bioagricultural Sciences and Pest Management, Colorado State University, 80523-1177, Fort Collins, CO, USA aut Faisal Muhammad Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut Pilon-Smits Elizabeth Department of Biology, Colorado State University, 80523-1878, Fort Collins, CO, USA aut Plant and Soil Springer International Publishing 386/1-2(2015-01-01), 385-394 0032-079X 386:1-2<385 2015 386 11104 https://doi.org/10.1007/s11104-014-2270-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2270-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yasin Muhammad Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut NATIONALLICENCE 700 1- El Mehdawi Ali Department of Biology, Colorado State University, 80523-1878, Fort Collins, CO, USA aut NATIONALLICENCE 700 1- Jahn Courtney Department of Bioagricultural Sciences and Pest Management, Colorado State University, 80523-1177, Fort Collins, CO, USA aut NATIONALLICENCE 700 1- Anwar Aneela Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut NATIONALLICENCE 700 1- Turner Marie Department of Bioagricultural Sciences and Pest Management, Colorado State University, 80523-1177, Fort Collins, CO, USA aut NATIONALLICENCE 700 1- Faisal Muhammad Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut NATIONALLICENCE 700 1- Pilon-Smits Elizabeth Department of Biology, Colorado State University, 80523-1878, Fort Collins, CO, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 386/1-2(2015-01-01), 385-394 0032-079X 386:1-2<385 2015 386 11104