CAJ | 학술논문

以硅藻中的谷皮菱形藻（ Nitzschia palea）为实验材料，研究了温度、光照、氮和磷浓度对其生长的影响。结果显示，谷皮菱形藻对温度的适应范围较广，15～35℃范围内均可生长，当温度为35℃时比生长率最大。在光照1000～5000 lx范围内，谷皮菱形藻均能达到较高的细胞密度，光照为1000 lx时，其最终细胞密度最大，光照5000 lx时，比生长速率最大。在氮磷浓度实验中，氮浓度分别定位于1 mg/L和11 mg/L，每个氮浓度下设置磷浓度梯度为0.05、0.1、0.5、2 mg/L，结果显示不同处理间藻的比生长速率存在极显著差异。在低氮条件下，磷浓度为2 mg/L时比生长速率最大；在高氮条件下，磷浓度为0.1 mg/L时比生长速率最大。
이규조중적곡피릉형조（ Nitzschia palea）위실험재료，연구료온도、광조、담화린농도대기생장적영향。결과현시，곡피릉형조대온도적괄응범위교엄，15～35℃범위내균가생장，당온도위35℃시비생장솔최대。재광조1000～5000 lx범위내，곡피릉형조균능체도교고적세포밀도，광조위1000 lx시，기최종세포밀도최대，광조5000 lx시，비생장속솔최대。재담린농도실험중，담농도분별정위우1 mg/L화11 mg/L，매개담농도하설치린농도제도위0.05、0.1、0.5、2 mg/L，결과현시불동처리간조적비생장속솔존재겁현저차이。재저담조건하，린농도위2 mg/L시비생장속솔최대；재고담조건하，린농도위0.1 mg/L시비생장속솔최대。
In this study , the effects of temperature , illumination , nitrogen and phosphorus concentration on the growth of Nitzschia palea were investigated.The results showed that N.palea could survive and grow in a wide range of temperature 15~35 ℃with the highest growth rate on 35 ℃.N.palea had a relatively higher cell density during illumination of 1 000~5 000 lx, and it had the maximum cell density at1 000 lx while grown fastest at 5 000 lx.In the experment of nitrogen and phosphorus concentration , the nitrogen concentration was set two groups 1 mg/L and 11 mg/L, and each group set one phosphorus concentration gradient 0.05, 0.1, 0.5 mg/L.The consequence indicated that there was highly significant difference between the specific growth rate of different treatment.Under the condition of low nitrogen concentration (1 mg/L) with phosphorus concentration of 2 mg/L, the N.palea could reach the maximum specific growth rate.However, under the condition of high N stress (11 mg /L) with phosphorus concentration of 0.1 mg/L, the algae specific could grow fastest.