Growth Characteristics of Tetraselmis sp.-1 in Phototrophic, Mixotrophic and Heterotrophic Conditions |
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| Authors: | Shen Jihong Yu Junhong Lin Xuezheng Li Guangyou Liu Fayi |
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| Institution: | First Institute of Oceanography,SOA,Qingdao 266061,P.R.China;First Institute of Oceanography,SOA,Qingdao 266061,P.R.China;First Institute of Oceanography,SOA,Qingdao 266061,P.R.China;First Institute of Oceanography,SOA,Qingdao 266061,P.R.China;First Institute of Oceanography,SOA,Qingdao 266061,P.R.China |
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| Abstract: | Tetraselmis sp.-1 is a new microalgae strain constructed by cell fusion technique. In this paper, the growth characteristics of Tetraselmis sp.-1 under different culture conditions are investigated. The growth kinetic models are obtained, the assimilation of C and NH4+ is investigated and the assimilation efficiency of Tetraselmis sp.-1 under different culture conditions is calculated. The results show that different culture conditions do not have obvious influence on carbon absorbance, but have significant influence on nitrogen absorbance, C∶N is maximum under heterotrophic condition, while minimum under phototrophic condition. The assimilation efficiency (η) of Tetraselmis sp.-1 has the highest value in heterotrophic condition and largely higher than those in phototrophic and mixotrophic conditions. |
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| Keywords: | Tetraselmis sp 1 growth characteristics kinetic models assimilation efficiency |
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