This study was conducted to evaluate the characteristics of geosmin production of Anabaena circinalis under different environmental condition. The test cyanobacterium was isolated from Lake Paldang. The growth rate and geosmin production of A. circinalis were examined with different variables including temperature (10, 15, 20, 25℃), light intensity (60, 120, 240 μmol photons m-2 s-1), and phosphorus concentration (0.01, 0.05, 0.25, 0.50, 1.00 mg L-1). The highest growth rate and chlorophyll-a (Chl-a) concentration appeared at 25℃, 60 μmol photons m-2 s-1 and 1.00 mgP L-1 for temperature, light intensity, and P concentration, respectively. Total geosmin production was highest at the optimal growth condition of each variable, while chlorophyll-specific geosmin production (the ratio of geosmin to Chl-a) was higher at the less favorable growth condition, indicating high potential of the off-flavor problem during low temperature period, e.g., late fall and early winter. Our results demonstrated that geosmin production of A. circinalis was directly related to chlorophyll synthesis and varied with cellular growth condition.

서 론
 재료 및 방 법
  1. 실험대상 조류
  2. 환경 조건별 배양 실험
  3. 조류 성장률 측정
  4. 지오스민 정량분석
  5. 통계분석
 결과 및 고 찰
  1. 온도 구배별 Anabaena 성장 및 지오스민 생산
  2. 광도 구배별 Anabaena 성장 및 지오스민 생산
  3. P·N 영양염 농도 구배별 Anabaena 성장 및 지오스민생산
 적 요
 사 사
 REFERENCES

• 박혜진(건국대학교 환경보건과학과, Department of Environmental Health Science, Konkuk University) | Park, Hye-Jin
• 박명환(건국대학교 환경보건과학과, Department of Environmental Health Science, Konkuk University) | Myung-Hwan Park Corresponding author
• 심연보(국립환경과학원 한강물환경연구소, Han River Environment Research Center, National Institute of Environmental Research) | Yeon-Bo Sim
• 임종권(국립환경과학원 한강물환경연구소, Han River Environment Research Center, National Institute of Environmental Research) | Jong-Kwon Im
• 황순진(건국대학교 환경보건과학과, Department of Environmental Health Science, Konkuk University) | Soon-Jin Hwang Corresponding author