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Effect of nitrogen limitation on cell growth, lipid accumulation and gene expression in Chlorella sorokiniana
Provedor de dados: 52
Autores: Li,Ying Xia; Zhao,Feng Juan; Yu,Dong Dong.
The influence of nitrogen (N) limitation on the cell growth, chlorophyll content, intracellular lipid production and expression levels of two pathway genes in Chlorella sorokiniana was investigated in mixotrophic culture in this study. The maximum biomass concentration of C. sorokinianacultured in modified BG11 medium containing 3, 6, 9, 12 and 15 mM N were 1.60, 2.21, 2.74, 3.18 and 3.21 g/L of dry cell weight, respectively with maximum specific growth rate of 0.180, 0.198, 0.201, 0.203, 0.206 day−1 during culture with an initial N feed of 3, 6, 9, 12 and 15 mM in the first eight days, respectively. The maximum lipid content was 51 % with 3 mM N. However, the maximum lipid productivity of 0.00884 g L−1 day−1 was achieved with 6 mM N. Expression levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen limitation; Chlorella sorokiniana; Lipid; Real- time PCR.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000300462