Transcriptome analysis for phosphorus starvation-induced lipid accumulation in Scenedesmus sp.

ABSTRACT: Phosphorus stress was applied to enhance the lipid production in Scenedesmus sp. The highest lipid production (350 mg L^-1) and lipid content (approximately 41.0% of dry weight) were obtained by addition of 2 mg L^-1 NaH₂PO₄·2H₂O every 2 days, which were higher than those in replete phosphorus. Correspondingly, carbohydrate content decreased significantly. We speculated that phosphorus limitation could block starch biosynthesis, and photosynthate flow tended to fatty acid biosynthesis to cope with stress. To investigate the mechanism that phosphorus stress triggers the carbon fixation to lipid biosynthesis, the transcriptome analysis was carried out by the Illumina RNA-seq platform. A total of 2897 genes were identified as differentially

SUBMITTER: Yang F 

PROVIDER: S-EPMC6219579 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature