| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Outline of Final Research Achievements |
Methods of quantification and identification of bacteria in rainwater were developed and applied to measure the cell concentration, viability, and communities of bacteria in the rainwater collected in every rain episode in a year at Kumamoto. Results showed the distinctive natures of cell concentration, viability and bacterial communities according to the synoptic weather causing rain, i.e., cyclones, Meiyu fronts and typhoons. In the rainwater of cyclones when clouds were induced by the intrusion of continental air, the fraction of bacterial indicator taxa of soil bacteria was larger, the cell concentration was higher, and the viability was lower than in the rainwater of other rain types. Growth of bacteria in the collected rainwater was not identified. Under incubation conditions, predominant strains of multiplying were encountered, while the concentration of ions including sulfate, nitrate, chloride, ammonium, calcium and iron did not change considerably.
|
