卡德藻自养、异养与兼养培养的比较研究Difference Between Autotrophic, Heterotrophic and Mixotrophic Growth of Tetraselmis sp.
刘晨临,王秀良,张学成
摘要(Abstract):
本文对卡德藻在自养、异养和兼养培养条件下的比生长速率、细胞密度、细胞色素组成及脂肪酸组成等方面进行了比较研究。兼养卡德藻的细胞密度大于自养条件和异养条件下细胞密度之和。兼养培养的卡德藻比生长速率是自养的 2倍 ,异养的 1.3倍。兼养和异养生长的对数期较自养的长。光合自养培养卡德藻最适光强为 10 0 0 0 lx,而兼养培养最适光强范围为 10 0 0~ 2 0 0 0 lx。在自养和兼养培养时亚油酸的含量很高 ,自养和兼养状态下分别为 16 .6 %和 17.4 9%。 EPA合成的量较低。异养藻的多不饱和脂肪酸的产量较自养藻和兼养藻要低。兼养藻细胞光合色素组成和含量与自养藻细胞的基本一致 ,但在异养条件下藻细胞色素组成发生明显改变。
关键词(KeyWords): 卡德藻;自养;异养;兼养
基金项目(Foundation): 国家 8 6 3(819- 0 2 - 0 1)
作者(Author): 刘晨临,王秀良,张学成
DOI: 10.16441/j.cnki.hdxb.2002.04.013
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