| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
This study aimed to develop an efficient phytoremediation technology to remove arsenic from polluted soil using arsenic hyperaccumulator ferns. The results obtained from this study were as bellow: 1, the soil bacteria played an important role in arsenic oxidation which was necessary before being absorbed by the ferns; 2, the rhizobacterial community of arsenic hyper accumulator ferns was composed of soil bacteria with adapting to the ferns; 3, the rhizobacteria isolates that are capable of arsenite oxidation and plant growth promotion were obtained; 4, the results of co-cultivation experiment using above isolated strains and hyper accumulator ferns showed that both biomass and accumulated arsenic of inoculated ferns increased much more than that of non-inoculated ones did.
These results provided hints when linking microbial arsenic transformation to arsenic uptake by ferns which is important when designing pre-treatment procedures of phytoremediation.
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