Abstract
Plants use siderophore, high affinity with iron low molecular chelators, produced by microorganisms to get iron. Some reports reveal that siderophores are effective in dissolution of Cs in clay or soil4),5). This indicates the possibility to dissolve Cs in plant and microbial ecology. In this study, effects on Cs elution behavior of microbial siderophores are focused. It was found that at most 68.2% of spiked Cs was eluted from 920 ppm vermiculite.