United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan.
Sci Total Environ. 2015 Jul 15;521-522:261-9. doi: 10.1016/j.scitotenv.2015.03.109. Epub 2015 Apr 2.
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.
2012 年 6 月至 8 月，在日本福岛县受放射性铯（137）污染的不同农田上种植的 4 种芸薹属植物中，评估了植物促生根瘤菌解淀粉芽孢杆菌在促进生长和吸收放射性铯（137）Cs 方面的有效性。芽孢杆菌的接种并没有促进任何植物的生长，尽管它导致土壤中 137Cs 浓度的显著增加，以及从土壤向植物的更高的 137Cs 转移。在所有蔬菜中，137Cs 的吸收能力呈现出 Komatsuna>萝卜>芥菜>萝卜的顺序。所有蔬菜的 137Cs 的 TF 值范围为 0.018 至 0.069。Komatsuna 具有最大的根表面积和根体积，与其他蔬菜相比，其植物组织中的 137Cs 浓度更高，137Cs 的 TF 值（0.060）也更高。在有机质含量高、Al-蛭石粘土矿物类型的土壤中，向植物转移的 137Cs 量较高。
