title: Growth and (137)Cs uptake of four Brassica species influenced by inoculation with a plant growth-promoting rhizobacterium Bacillus pumilus in three contaminated farmlands in Fukushima prefecture, Japan.
abstract: The effectiveness of the plant growth-promoting rhizobacterium Bacillus pumilus regarding growth promotion and radiocesium ((137)Cs) uptake was evaluated in four Brassica species grown on different (137)Cs contaminated farmlands at Fukushima prefecture in Japan from June to August 2012. B. pumilus inoculation did not enhance growth in any of the plants, although it resulted in a significant increase of (137)Cs concentration and higher (137)Cs transfer from the soil to plants. The Brassica species exhibited different (137)Cs uptake abilities in the order Komatsuna>turnip>mustard>radish. TF values of (137)Cs ranged from 0.018 to 0.069 for all vegetables. Komatsuna possessed the largest root surface area and root volume, and showed a higher (137)Cs concentration in plant tissue and higher (137)Cs TF values (0.060) than the other vegetables. Higher (137)Cs transfer to plants was prominent in soil with a high amount of organic matter and an Al-vermiculite clay mineral type.
authors.affiliation: United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Han Phyo
authors.initials: HP
authors.lastname: Aung
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Salem
authors.initials: S
authors.lastname: Djedidi
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Aung Zaw
authors.initials: AZ
authors.lastname: Oo
authors.affiliation: Department of International Environmental and Agricultural Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Yi Swe
authors.initials: YS
authors.lastname: Aye
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Yokoyama
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Sohzoh
authors.initials: S
authors.lastname: Suzuki
authors.affiliation: Faculty of Agriculture, Utsunomiya University, 321-8505, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Sekimoto
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan. Electronic address: skimura@cc.tuat.ac.jp.
authors.forename: Sonoko Dorothea
authors.initials: SD
authors.lastname: Bellingrath-Kimura
mesh_terms: D059827:Agricultural Inoculants; D001407:Bacillus / Q000502:physiology; D001673:Biodegradation, Environmental; D001937:Brassica / Q000737:chemistry / Q000254:growth & development* / Q000382:microbiology; D002588:Cesium Radioisotopes / Q000032:analysis*; D062406:Fukushima Nuclear Accident; D007564:Japan; D011834:Radiation Monitoring; D012231:Rhizobium; D012987:Soil; D012988:Soil Microbiology; D012990:Soil Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D012987:Soil; D012990:Soil Pollutants, Radioactive
keywords: Bacillus pumilus; Brassica species; Fukushima; Radiocesium; Transfer factor