环境因子对慢原甲藻(Prorocentrum rhathymum)生长的影响  

Effect of environmental factors on the growth of Prorocentrum rhathymum

作　　者：刘俏[1,2] 龙丽娟[1] 

机构地区：[1]中国科学院南海海洋研究所,中国科学院热带海洋生物资源与生态重点实验室,广东广州510301 [2]中国科学院大学,北京100049

出　　处：《热带海洋学报》2013年第3期93-100,共8页Journal of Tropical Oceanography

基　　金：中国科学院重要方向性项目(KSCX2-YW-R-093);中国科学院知识创新工程重要方向项目(KSCX2-EW-G-12)

摘　　要：慢原甲藻是一种有毒甲藻,有报道称其能够形成赤潮,但国内外对其生长方面的研究几为空白。本文研究了温度、盐度、光照、起始密度、大量元素浓度、微量元素浓度以及维生素浓度等7种环境因子对慢原甲藻(Prorocentrum rhathymum)生长的影响。结果显示,慢原甲藻的适宜生长条件为温度20—30℃,盐度30‰—40‰,光照67.5—121.5μmol·m 2·s 1,大量元素、微量元素和维生素浓度分别为f培养基对应组分的1/2—2倍、1/8—1/2倍、1/2—4倍。起始密度小于8000个·mL 1时,最大细胞密度与起始密度正相关。Prorocentrum rhathymum is a harmful dinoflagellate species of red tide algae. However, there were nearly no researches on the growth of Prorocentrum rhathymum in China. In this paper, the effect of temperature, salinity, illumination, initial cell density and nutrients on the growth ofProrocentrum rhathymum was studied. The results showed that the optimum growth conditions were temperature 20-30℃, salinity 30‰-40‰, illumination 67.5-121.5μmol·m^-2·s^-1, 1/2-fold-2-fold concentrations of macronutrients of f medium, 1/8-fold-1/2-fold concentrations of micronutrients of f medium and 1/2-fold -4-fold concentrations of vitamins of f medium. There was a positive correlation between the maximum cell density and initial cell density when initial cell density was less than 8000cells·mL^-1.

关 键 词：慢原甲藻 环境因子 生长 

分 类 号：P735.121[天文地球—海洋生物学]