Photosynthetic Characteristics and Cell Quota of Nitrogen and Phosphorus in Scenedesmus quadricauda under P Limitation
인제한에 따른 Scenedesmus quadricauda의 광합성 특성 및 질소, 이 함량 변화

Chi-Yong Ahn, Hee-Sik Kim, Byung-Dae Yoon, Hee-Mock Oh
2002 ALGAE  
Dean \>f the Graduate School i-V Chapman, Richard W. , Effects of 2-Chloroethylphosphonic Acid (Ethephon) on Scenedesn!us quadri cauda. Master of Science (Biology) v August, 1973, 19 pp., 3 tables, 5 figures references, 18 titles. The effects of various concentrations of 2-chloroethylphosphcnic acid (Ethephon), an ethylene-releasing compound, on the total protein, deoxyribonucleic acid (DNA), and ribonucleic acid (RNA) levels in Scenedesmus quadricauda IU 614 were investigated. The alga was
more » ... d. The alga was grown under 4 5Q±50 ft-c continuous light illumination at 24±1 C with varying concentrations of Ethephon (0.0, 0.00001 , 0.0001, 0.001 , 0.1, 1.0 , and 10.0 ug/ml) . The nucleic acids were extracted and quantitated by the diphenylamine and orcinol methods. Protein was determined by the Lowery method. Total protein and DNA levels were not significantly different from those in controls. The RNA level was increased by 26% over control when the alga was treated with 0.1 yg/ml Ethephon. Ethephon, at concentrations of 0,1 and 1.0 yg/ml, stimulated growth significantly above controls. The ether concentrations of Ethephon did not stimulate growth above the control cultures. EFFECTS OF 2-CHLOROETHYLPHOSPHONIC ACID (ETHEPHON) ON SCENEDESMUS
doi:10.4490/algae.2002.17.2.083 fatcat:xecbcajz5zctnal6dmwqlvc7ba