植物激素对裂殖壶菌生长与DHA含量的影响  

Effects of Plant Hormones on Growth and DHA Content of Schizochytrium limacinum

作　　者：杨青[1] 宋益民[1] 范鸣浩[1] 臧晓南[2] 徐涤[2] 张学成[2] 

机构地区：[1]青岛科技大学,山东青岛266042 [2]中国海洋大学,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2011年第12期53-57,共5页Periodical of Ocean University of China

基　　金：国家高技术研究发展计划项目(2008AA09Z410);国家科技支撑计划项目(2006BAD09A12)资助

摘　　要：研究了6种植物激素(BA、GA、KT、IBA、NAA和IAA)对裂殖壶菌OUC175生长和DHA含量的影响。结果显示,在适宜的浓度条件下,6种植物激素都能不同程度提高裂殖壶菌生长速度和DHA含量,但是浓度过高产生抑制作用。6种植物激素对裂殖壶菌生物量和DHA含量的适宜浓度分别是:BA,3mg/L;KT,10mg/L;GA,1mg/L;IBA,3mg/L;NAA,6mg/L;IAA,3mg/L。BA在添加量3mg/L时,裂殖壶菌的生物量和DHA含量分别比对照组提高27.1%和30.0%。This paper investigated the effects of six kinds of plant hormones（BA,GA,KT,IBA,NAA and IAA） on the growth rate and DHA content of Schizochytrium limacinum OUC175.Results showed that six kinds of plant hormones all can improve the two parameters of the fungus in appropriate concentrations,but inhibited trend appeared in extortionate concentrations.The optimum conditions of the six kinds of plant hormones were as follows： BA,3 mg/L;KT,10 mg/L;GA,1 mg/L;IBA,3 mg/L;NAA,6 mg/L;and IAA,3 mg/L.When the additive amount of BA was 3 mg/L,the biomass and DHA production were higher than that of control group by 27.1% and 30.0% respectively.

关 键 词：裂殖壶菌 植物激素 发酵 生物量 DHA 

分 类 号：Q935[生物学—微生物学]