不同环境因子对谷皮菱形藻生长的影响  

Effects of Different Factors on Growth of Nitzschia palea

作　　者：张英俊[1] 颜日明[1] 张志斌[1] 黄国林[2] 朱笃[1] 

机构地区：[1]江西师范大学生命科学院江西省亚热带植物资源保护与利用重点实验室,江西南昌330022 [2]东华理工大学化学生物与材料科学学院,江西抚州344000

出　　处：《食品科学》2007年第10期369-373,共5页Food Science

基　　金：国家自然科学基金项目(20506009);江西省自然科学基金项目(0530095)

摘　　要：本实验研究了不同环境因子包括氮源种类、氮源浓度、硅盐浓度、光强、盐度和pH值对谷皮菱形藻生长的影响。结果表明,以CO(NH2)2为氮源生长最快,最大比生长速率和最大细胞浓度最大,分别为0.49d-1和0.54g/L;NaNO3浓度为0.72g/L时,有利于谷皮菱形藻生长;在硅酸钠浓度0～0.4g/L的范围内,随着硅浓度的增加,谷皮菱形藻生长明显加快;光强对谷皮菱形藻的影响十分显著,易成为其生长的限制因素;NaCl浓度0.15mol/L时,谷皮菱形藻最大比生长速率和最大细胞浓度最大;碱性的培养液最利于谷皮菱形藻生长。The effects of different environmental factors on Nitzschia palea were studied in the paper. The findings indicated that Nitzschia palea better growth with CO（NH2）2 than other nitrogen source, and μmax and final cell concentration was 0.49 d-1 and 0.54 g/L respectively, 0.72 g/L and 0.15 mol/L NaCl was optimum for growth of N.palea. Results showed that cell concentration of N.palea increased as increase of the Na2SiO3 level. Light intensity was limiting key of N.pale and basic culture liquid was favor to the N.palea.

关 键 词：谷皮菱形藻 生长曲线 

分 类 号：S968.439[农业科学—水产养殖]