理化因子对原绿球藻生长及其色素含量的影响  

Effects of Physical-chemical Factors on Growth and Pigment Content in Alga Prochlorococcus sp.

作　　者：冯宪栋[1] 蒋霞敏[1] 符方尧[1] 

机构地区：[1]宁波大学生命科学与生物工程学院,浙江宁波315211

出　　处：《水产科学》2007年第12期643-647,共5页Fisheries Science

基　　金：浙江省自然科学基金资助项目(301208)

摘　　要：以COA为基础培养基，进行了光照、温度、盐度等理化因子对原绿球藻生长和色素含量影响的单因子试验。试验结果表明，原绿球藻适宜生长的光照度为500～2500lx，最适光照度为500～1000lx：适宜生长的温度为10～30℃，最适温度为25～30℃；适宜生长的盐度为0～44．9，最适盐度为13．7～33．4；适宜生长的pH5～11，最适pH8～10；最适氮源为NH4-N，其次为（NH2）2CO；适宜生长的氮（NH4Cl）质量浓度为5～25mg／L，最适质量浓度为15～25mg／L。理化因子对该藻色素含量的影响与其生长相吻合。Effects of physical-chemical factors such as illumination intensity, temperature, and salinity on growth and pigment content in alga Prochlorococcus sp. were studied under the culture medium of COA. Results showed that the range of the suitable illumination intensity varied from 500 to 2500 lx with the optimal illumination intensity of 500 -1000 Ix;the range of proper temperature was 10 -30 ℃for good growth,with the optimum temperature of 25 - 30 ℃ ; the range of proper salinity was 0 - 44.9, and the best 13.7 - 33.4 ; the range of proper pH was 5 - 11 ,and the best 8 - 10 ;the best nitrogen was NH4Cl, followed by （NH2） 2CO;the range of proper NH4Cl con- centration was 5 -25 mg/L, and the best 15 -25 mg/L. Such relatively corresponding pigment content was consistent with effects of physical-chemical factors on growth in the alga.

关 键 词：原绿球藻 理化因子 生长 色素含量 

分 类 号：Q949.22[生物学—植物学]