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Triacylglycerol accumulation of Phaeodactylum tricornutum with different supply of inorganic carbon
Peng, Xiaowei; Liu, Shuo; Zhang, Wei; Zhao, Yonggang; Chen, Lin; Wang, Hui; Liu, Tianzhong
2014-02-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
Volume26Issue:1Pages:131-139
Abstract

The diatom Phaeodactylum tricornutum produces large quantities of lipids, especially triacylglycerols (TAGs) under nitrogen or phosphorus limitation. In this study, production of lipids and TAGs during this process was compared under conditions with different inputs of inorganic carbon. With an abundant supply of inorganic carbon, considerable accumulation of biomass, lipids, and TAGs was identified after a nitrogen/phosphorus-limiting "induction incubation." TAGs were still synthesized and accumulated even under inorganic carbon limitation with a cessation in the production of biomass and cellular lipids. This part of accumulated TAGs could be synthesized through recycling and transformation of other lipids such as glycolipids and phospholipids. Additionally, some alterations in the fatty acid profile following TAG accumulation were found. The content of the C16:0 fatty acid increased with decreases in C16:3 and C20:5, which could have been caused by enzymatic selectivity for these fatty acids during the process of TAG synthesis. It was concluded that nitrogen and phosphorus metabolism regulates the synthesis of TAG, while carbon metabolism promotes it by providing sufficient substrates.

SubtypeArticle
KeywordInorganic Carbon Induction Incubation Lipid Accumulation Tag Accumulation Fatty Acid Profile
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s10811-013-0075-7
WOS KeywordFATTY-ACID-COMPOSITION ; TRIGLYCERIDE ACCUMULATION ; CHLAMYDOMONAS-REINHARDTII ; PARIETOCHLORIS-INCISA ; BIODIESEL PRODUCTION ; ARACHIDONIC-ACID ; CHAIN-LENGTH ; MICROALGAE ; ENZYME ; OIL
Indexed BySCI
Language英语
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000330969800016
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6213
Collection微藻生物技术研究组
AffiliationChinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao, Peoples R China
Recommended Citation
GB/T 7714
Peng, Xiaowei,Liu, Shuo,Zhang, Wei,et al. Triacylglycerol accumulation of Phaeodactylum tricornutum with different supply of inorganic carbon[J]. JOURNAL OF APPLIED PHYCOLOGY,2014,26(1):131-139.
APA Peng, Xiaowei.,Liu, Shuo.,Zhang, Wei.,Zhao, Yonggang.,Chen, Lin.,...&Liu, Tianzhong.(2014).Triacylglycerol accumulation of Phaeodactylum tricornutum with different supply of inorganic carbon.JOURNAL OF APPLIED PHYCOLOGY,26(1),131-139.
MLA Peng, Xiaowei,et al."Triacylglycerol accumulation of Phaeodactylum tricornutum with different supply of inorganic carbon".JOURNAL OF APPLIED PHYCOLOGY 26.1(2014):131-139.
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