光质对湛江等鞭金藻生长和脂肪酸组成的影响  

Effects of Light Qualities on Growth and Fatty Acid Composition of Isochrysis zhanjiangensis Hu & Liu

作　　者：柴雨[1] 吴垠[1] 赵慧慧[1] 于丹[1] 

机构地区：[1]大连水产学院农业部海洋水产增养殖学与生物技术重点开放实验室,辽宁大连116023

出　　处：《植物生理学通讯》2009年第6期571-574,共4页Plant Physiology Communications

基　　金：国家科技支撑项目(2006BAD09A12)

摘　　要：在气升式光生物反应器中研究不同光质光影响湛江等鞭金藻的生长。结果表明,藻细胞密度的大小顺序为:红光>白光+红光、白光>白光+蓝光+红光>白光+蓝光>蓝光。蓝光下多不饱和脂肪酸百分含量最高,占总脂肪酸的50.01%。白光下总单不饱和脂肪酸和总饱和脂肪酸含量最高,占总脂肪酸的24.19%和27.46%。多不饱和脂肪酸中C18:4n-3含量最高,占总脂肪酸的20.3%～23.3%,最高值出现在蓝光下;其次为C22:6n-3(DHA),占总脂肪酸的10.2%～12.3%,在蓝光和白光+蓝光中较高;而C18:2n-6和C18:3n-3均以红光下的为最高,分别达3.11%和8.04%。The effects of different light qualities on the growth of Isochrysis zhanjiangensis in the air-lift photobioreactor systems were studied. The results indicated that, the cell density of L zhanjiangensis showed that： red light〉 white＋red light, white light〉white＋red＋blue light〉white＋blue light〉blue light. The content of total poly-unsaturated fatty acids reached the maximal value under blue light, accounted for 50.01% of total fatty acids. The content of total mono-unsaturated fatty acids and total saturated fatty acids reached the maximal value under white light, accounted for 24.19% and 27.46% of total fatty acids. Under blue light the C18：4n-3 content was the highest in poly-unsaturated fatty acids, accounted for 20.3% to 23.3% of total fatty acids; and C22：6n-3 （DHA） content followed, accounted for 10.2% to 12.3% of total fatty acids under blue and white＋blue light; under red light C18：2n-6 and C18：3n-3 contents reached 3.11% and 8.04% respectively.

关 键 词：湛江等鞭金藻 光生物反应器 光质 生长 脂肪JJ~)th-酸 

分 类 号：Q945[生物学—植物学]